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Location: United States As a Blockchain Engineer at Ondo, you will help design our smart contract systems - not just the contracts themselves, but how they're deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You'll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it's live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You'll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You'll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you'll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design : Contribute to the architecture of smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Help ensure contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Collaborative Execution: Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor's degree in Computer Science, Engineering, or a related technical field. 3+ years of software engineering experience. 1+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems , not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope." What we offer Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we're well-funded and believe that great talent deserves great compensation. Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). Small remote-first team across many countries — you'll be an early team member helping shape our vision, culture, and design practices. A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures.

VOICE — это основанная на мнениях система на блокчейне Solana, которая превращает отзывы в ончейн-активы, 7000+ пользователей. Требования: — 5+ лет опыта управления продуктами в сфере криптовалют и Web3 — опыт в стартапах в области технологий или в компаниях, ориентированных на продукты — знание Solana ecosystem Размер команды — 20 человек Инвестиции — $550K Pre-seed

Location: Almaty, Kazakhstan; Tbilisi, Georgia; Yerevan, Armenia; Belgrade, Serbia; Minsk, Belarus; Tashkent, Uzbekistan The Vault is an MPC-based crypto custody platform for institutional and retail clients, running threshold signing across HSM and Ledger hardware. We're scaling toward Series A, launching our productized platform in 2026, and publishing original cryptographic research alongside the product. We're hiring a Staff Engineer to design and ship the custody platform's hardest backend code. This is a hands-on IC role with real technical leadership — no people management — where you drive non-trivial initiatives through code, RFCs, and mentorship. You'll shape architecture in your area of ownership; platform-wide decisions sit with technical leadership. We're AI-forward (Claude Code, Cursor, Codex), and we need engineers who can read AI-generated code critically and catch what it misses — not just prompt it. You'll naturally gravitate toward either the security-critical core (MPC, threshold signing, HSM/Ledger integration, key lifecycle) or the faster-moving periphery (chain adapters, integrations, APIs/SDKs). What you'll do Design, write, and ship critical platform components: policy engine, signing orchestration, key lifecycle workflows, recovery flows, approvals, audit trails, multi-tenant wallet and account services. Lead non-trivial cross-cutting initiatives in your area — through written RFCs, design reviews, and code, not through hierarchy. Build high-load, multi-tenant SaaS systems: tenant isolation, quotas, rate limits, backpressure, concurrency control, predictable latency under spikes. Distributed systems & reliability: idempotency, retries, outbox/inbox, event-driven workflows, sagas and state machines, replay, graceful degradation. Security-by-design: least privilege, secret handling, mTLS/JWT, tamper-evident logs, audit-ready data models — designed for SOC 2, ISO 27001, and DORA scope from day one. Performance & data: profiling, load testing, benchmarking, contention analysis, GC tuning; strong relational modelling (Postgres or equivalent), migrations, indexing, clear consistency boundaries. AI-assisted development as a core competency: ship production code with Claude Code, Cursor, and Codex; build the prompt and agent patterns that work for your area; contribute to the company's AI engineering practices; know when to use AI heavily (periphery, integrations, tests, docs) and when not to (cryptographic core, signing paths) where blind generation is unsafe. Set patterns and shared libraries for the services your area touches; raise the bar through code review and example. Own features end-to-end: design notes / RFCs, code, tests, observability, rollout, on-call. No "throw it over the wall" handoffs. Mentor senior engineers: your reviews and your written designs are the strongest signal to the rest of the team. Requirements Must-have experience Strong CS fundamentals — our primary screening criterion. You can reason from first principles about concurrency, distributed systems, consistency models, networking, and OS behaviour. You know not just what locks and channels do, but why and when. You understand what's happening under the hood, not only at the API level. Ownership mindset. You've owned non-trivial production systems end-to-end — design, ship, measure, improve, on-call. You don't wait to be told what to do, and you don't ship code you don't understand. 10+ years backend engineering, including 3+ years operating at Staff level (or equivalent senior IC scope). Strong production experience in a modern systems language — Go, Rust, Java, C++, or comparable. Hands-on Go experience, or genuine readiness to ramp on Go in the first month. Track record of Staff-level technical leadership through code, RFCs, and influence — without formal authority over teams. You can point to RFCs you wrote that the team adopted, initiatives you drove without being the manager, patterns you set that outlasted you. Proven track record building high-load, multi-tenant SaaS in production (HA, incident response, SLOs). Hands-on with modern backend stacks: gRPC/HTTP, queues/streams, caching, relational databases, Kafka/NATS or equivalent. Strong testing discipline: unit/integration/contract tests, testability-first design, deterministic CI. Strong observability habits: structured logging, metrics, tracing, end-to-end production debugging. REQUIRED: production-grade use of modern AI coding tools (Claude Code, Cursor, Codex, or comparable). You can point at what you've built with them. You read AI-generated code as a hostile reviewer, not a grateful recipient — you have instincts for what AI tends to get wrong, and you don't ship code you couldn't have written yourself. Nice to have Exposure to custody, wallets, or signing systems (MPC, HSM, TEE, key management, approvals). Hardware wallet integration (Ledger). Multiple blockchain ecosystems (EVM and Bitcoin minimum; Cosmos, Solana, others a plus). Built custom agents, MCP integrations, or in-repo AI workflows that compounded a team's productivity. Designed and run evals for AI-generated code (correctness, security, style). Kubernetes and service mesh in production; SRE practices. Regulated-environment experience (fintech, security audits, compliance-driven engineering). Threat modelling and security review participation. Familiarity with SOC 2, ISO 27001, and DORA — enough to design for them. What this role is NOT A people management role. A pure architecture / whiteboard role. You write production code in this codebase every week, and platform-wide architectural ownership sits elsewhere. A research-only cryptography role. You collaborate with our Cryptography Researcher; your focus is platform engineering, not protocol design. Pure feature ticket execution. If you wait to be told what to do, this won't work. Benefits A Staff IC role with real technical leadership — no people management, no sprint mechanics gauntlet, no architecture-by-committee. An AI-forward engineering culture with budget and autonomy for the tooling, models, and agents you need. Direct peers in cryptography research, security architecture, product, and delivery — you're not the only senior voice in the room. Fully remote, any time zone with reasonable overlap with EU/CIS hours. Competitive comp at the Staff engineer band; equity participation; full benefits. A product approaching Series A with paying institutional customers and a published cryptographic research line

Location: Remote We're hiring a Junior Trader to join our trading team. You'll work directly with senior traders across strategies on centralized and decentralized venues, and take on your own responsibilities quickly. We don't require prior DeFi experience. We do require that you're quantitative, technical, and able to move fast without breaking things. WHAT YOU'LL DO - Execute and manage trades across centralized (CEX) and decentralized (DEX) venues — order books, AMM pools, and concentrated liquidity positions. - Monitor positions, inventory, and P&L in real time. Identify risks early and act on them. - Build and improve the tooling the desk runs on: position trackers, reporting dashboards, hedging workflows, reconciliation. - Analyze market and execution data to answer questions that matter — where slippage comes from, which pools are actually profitable, how our fill quality compares to the market. - Develop real depth in market structure and protocol mechanics (AMMs, PMMs, lending protocols) and bring it back to the desk. WHAT WE'RE LOOKING FOR - 0–3 years of experience — recent graduates with strong technical credentials, or candidates from quant research, engineering, data, or markets-adjacent roles looking to move onto a trading desk. - Strong quantitative foundation: probability, statistics, and the instinct to reach for data before opinions. - Python preferred, ideally applied to financial modeling or data analysis (pandas, notebooks, working with messy datasets). Adjacent tooling — R, MATLAB, SQL, serious Excel modeling — counts. - Real interest in crypto and DeFi. Professional crypto experience isn't required; demonstrated engagement with the space is. - Sound judgment under pressure. Markets move at 3am and things break. We need someone who stays composed, thinks clearly, and escalates early. - Precise communicator - Self-directed and adaptable; comfortable operating with autonomy across time zones in a remote-first environment. NICE TO HAVE - Personal trading, market-making, or on-chain activity of any kind — a portfolio, a bot, an arbitrage script, a Dune dashboard. - Familiarity with Solana tooling (Jupiter, Orca, Drift) or EVM DeFi (Uniswap, Aave, Curve). - Exposure to algorithmic or systematic trading. - Machine learning or large-scale data analysis (regression, tree-based methods, classification). - Internships or prior work at a trading firm, market maker, exchange, or protocol. WHAT YOU'LL GET - Direct mentorship from traders running real capital — you'll learn by working alongside them, not from a curriculum. - Responsibility as fast as you can earn it, with clear feedback on where you stand. - Exposure across the full stack of a trading operation: execution, risk, tooling, counterparty relationships, and market structure. - A front-row seat as equities, commodities, and crypto converge on-chain.

Location: Remote Workplace: Remote Phantom https://phantom.com is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural moments that shape them, building conviction through real-time data and the verified performance of top traders. With self-custody and access to open networks at its core, Phantom lets them control their financial moves in the same app they use to safely store or spend money worldwide. Phantom has reached #1 in Google Play's finance category and consistently ranks in the top 50 apps across all categories. Check out our Forbes Fintech 50 https://www.forbes.com/sites/ninabambysheva/2026/02/23/inside-phantoms-battle-plan-to-win-the-crypto-fueled-superapp-war/ and CNBC and Statista's World's Top Fintech Companies 2026 https://www.cnbc.com/worlds-top-fintech-companies-2026/! We are around 180 people, fully remote, backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm. Staff Backend Engineer who blends systems thinking with product pragmatism and a real passion for crypto. You’ll design, maintain, and evolve the backend services and APIs that connect Phantom Cash to blockchains. You understand both client-server architecture and blockchain protocols, and you know how to balance reliability, quality, and speed. You communicate clearly across pods, document rigorously, and elevate the engineering bar through execution and mentorship. Your work will make Phantom Cash feel dependable, seamless, and ready to scale. QUALIFICATIONS - Bachelors degree in Computer Science or related technical field or equivalent practical experience - Pragmatic engineering mindset, focuses on results and user impact, not abstract purity. - Proactive and outcome-oriented: anticipates problems, pushes features to completion without waiting for perfect specs. - Strong communicator and pragmatic problem solver - explains complexity simply, favors progress over perfection. - Node.js / NestJS at scale; event-driven design (queues, retries, idempotency). - REST API architecture: versioning, pagination, error models, authentication, rate-limiting. - Full-stack awareness: understands trade-offs of state management (client vs server) and latency budgets. - Distributed-systems fundamentals: concurrency, ordering, retries, data consistency. NICE TO HAVE - Kubernetes + AWS ops; CI/CD; observability; on-call ownership. - Deep interest in crypto - keeps up with ecosystem changes, wallets, protocols, and security norms. - Previous hands-on experience in crypto or fintech (exchanges, wallets, payment rails, ledgers). - Smart-contract and protocol understanding: knows how on-chain programs interact with off-chain services. - Blockchain integration experience — Solana preferred, EVM acceptable. - Has shipped high-quality products in mature, high-bar engineering organizations. Why Work With Us Phantom's journey to becoming a global trading app began with making crypto easier to use. Today, we’re building on that foundation to help people discover the markets that matter, make informed financial moves, and safely store or spend their money worldwide. Joining Phantom means helping shape that next chapter: building products that bring the freedom of open markets to more people.   - Build for global impact: Create products used by tens of millions of people, making innovative financial markets more accessible to users around the world. - Make complexity feel simple: Solve meaningful challenges across design, engineering, and user experience to make discovering markets and managing money seamless. - Put users in control: Help build a future where people have greater freedom over their assets and financial decisions, with security and self-custody at the foundation. Benefits (only available to full-time employees) - Competitive salary and equity - Comprehensive insurance (medical/dental/vision): base plan 100% covered - Flexible hours and a long-standing, supportive remote environment - Unlimited vacation: Take time when you need it (and we really mean it!) - 401(k) retirement plan - Wellness stipend - Weekly meal stipend - Learning & Development stipend - Remote / WFH set-up stipend We strongly encourage candidates of all backgrounds to apply. We believe that our work is stronger with a variety of perspectives, and we’re eager to further diversify our company. If you have a background that you feel would make an impact at Phantom, please consider applying. We’re committed to building an inclusive, supportive place for you to do the best work of your career. By submitting your resume and application materials, you acknowledge and agree that Phantom Technologies, Inc. ("Phantom") collects and processes your personal information (including application materials, interview records, and related data) to evaluate your candidacy. Phantom may use AI-powered tools and third-party service providers for transcription, note-taking, scheduling, and other administrative tasks. Phantom does not sell your information and your materials will be handled securely and in accordance with applicable data protection laws.

Location: Flexible; Singapore Workplace: Hybrid Job Title: Software Engineer Department: Engineering & Product Development Reports to: Engineering Lead Location: Flexible but Singapore preferred About Codex Codex is building the infrastructure for stablecoin-based cross-border payments — moving money faster, cheaper, and more transparently than the legacy financial system. Backed by Circle, Coinbase, Dragonfly, Wintermute, and Cumberland, we're a small team solving hard problems at the intersection of crypto and global payments.   The Role You'll own Codex's financial partner integrations end-to-end — from API contract and webhook design through to reconciliation and production hardening — and build the automation layer that makes our trading and treasury operations increasingly self-running. This is a high-ownership role at the infrastructure layer of the business. You'll be adding new payment rails, eliminating manual operational workflows, and designing systems that handle real money reliably across fiat and crypto rails. You'll work directly with the founders and Engineering & Product Development team, and closely with Compliance, Operations, and Financial Partnerships.   Responsibilities Financial Partner Integrations - Own integrations with banks, payment providers, and liquidity venues end-to-end — from API contract and webhook design through to production hardening and reconciliation - Build integrations that are robust to vendor reality: incomplete documentation, schema changes without warning, and validation rules that shift post-go-live - Build messaging / notification systems with signature verification and replay protection; pin schemas against real sandbox behaviour; design for failure at every layer - Maintain and evolve the reconciliation layer across all connected payment rails — fees, settlement windows, and exception handling as first-class concerns Operational Automation - Identify manual workflows in onboarding, compliance, and back-office operations and systematically replace them with product and automation - Enable self-service for internal ops teams and customers, reducing engineering dependency for routine operational tasks - Work closely with Compliance and Operations to understand where the friction is and build the tooling that removes it Treasury & Liquidity Automation - Design and build the automation layer for Codex's trading and treasury operations — automated position management, liquidity routing, and risk controls - Design for failure: clear handling of automated decision failures, position unwinding, and safe degradation Engineering Standards - Set and maintain the engineering standard for how payment integrations are built at Codex — idempotency, audit trails, fail-closed design, exact decimal arithmetic, and deterministic durable orchestration - Mentor engineers on the hard parts of money movement systems - Continuously design and build for security, hardening our systems - Ship and critically review AI-assisted code with the judgement to identify plausible but incorrect output or output detrimental to a product’s long-term health and sustainability What We're Looking For - 6 to 10 years of backend engineering experience in cross-border payments, stablecoins, FX infrastructure, or crypto custody - Production experience with both crypto rails (on-chain settlement on major networks like Ethereum, Tron and Solana; bridging major stablecoins; DeFi protocols) and fiat rails (SWIFT, SEPA, local schemes such as FPS or CHATS) - Must-have: Production experience with durable workflow orchestration — Temporal strongly preferred. Includes deterministic replay, safe versioning of live workflows, idempotency keys, and compensation logic - Must-have: Strong TypeScript/Node and Postgres in a money context — fail-closed design, exact decimal arithmetic, append-only audit trails - Must-have: Hands-on third-party API integration experience, including vendors with incomplete documentation, webhook reliability requirements, and schema instability

Location: New York, NY Workplace: Hybrid ABOUT THE COMPANY Rain is the global stablecoin payments platform for enterprises, neobanks, platforms, developers, and AI agents. Our technology allows partners to move, store, and use stablecoins instantly and compliantly through global payment cards, rewards, on/offramps, wallets, and cross-border rails. As both a Visa and Mastercard Principal Member, Rain issues cards that work at more than 175 million merchant locations in over 220 countries and territories. Built natively for stablecoins and trusted by more than 100 organizations worldwide, Rain delivers secure, scalable infrastructure that makes money move freely and instantly around the world. You will have the opportunity to deliver massive impact at a hypergrowth company backed by some of the top investors in fintech, crypto, and SaaS. In January 2026, we closed a $250M Series C led by ICONIQ, valuing Rain at $1.95B, with Sapphire Ventures, Dragonfly, Bessemer Venture Partners, Galaxy Ventures, FirstMark, Lightspeed, Norwest, and Endeavor Catalyst also participating. If you're curious, bold, and excited to help shape a borderless financial future, we'd love to talk.   OUR ETHOS We believe in an open and flat structure. You will be able to grow into the role that most aligns with your goals. Our team members at all levels have the freedom to explore ideas and impact the roadmap and vision of our company. ABOUT THE TEAM We are hiring a VP of Engineering to own the craft, quality, and technical direction of our roughly 50-person engineering organization as we enter our next stage of growth. We expect to approximately double the size of the team, and we’re looking for a leader who has successfully scaled a high-performing engineering organization while maintaining an exceptionally high technical bar. This isn’t a role focused on adding headcount for the sake of growth. We want someone who can thoughtfully scale the team, strengthen the systems that move real money, and make our engineers significantly more effective as the organization grows. This leader should be deeply technical and genuinely engaged in the code, architecture, and engineering decisions—not operating adjacent to them. You will lead through a mix of direct reports and a small group of engineering managers and tech leads, partnering closely with Product, Risk, and Compliance. You will spend your time on design reviews, incident retros, hiring, and the handful of technical bets that determine whether we can support the next order of magnitude of transaction volume. If your ideal week is entirely calendar blocks and roadmap decks, this is not the right role. If your ideal week includes a hard design debate, a code review that changes someone's mind, and a coaching conversation that raises a manager's ceiling, keep reading. WHAT YOU’LL DO - Own engineering strategy and architecture across card issuing, wallets, ledger, money movement, onchain settlement, and integrations with card networks and banking partners — including the multi-year technical roadmap that gets us there. - Set and own Rain's engineering quality bar across system design, code review, testing, observability, documentation, and technical decision-making, ensuring correctness is treated as critical for systems that move customer funds. - Go deep where the risk is. You won't own day-to-day code, but you will review critical designs, weigh in on the highest-consequence architecture and build-vs.-buy decisions, and be technical enough that no one can hand you a bad design and have it pass. - Drive reliability, scalability, and operational excellence by establishing SLOs, improving incident response, capacity planning for 10x growth, and designing resilient systems with graceful degradation, idempotency, and replay capabilities. - Build security, compliance, and correctness into the platform by design, partnering closely with Risk, Compliance, and Security to meet PCI, SOC 2, fraud-control, regulatory, and blockchain infrastructure requirements. - Increase engineering velocity without sacrificing quality through improvements to CI/CD, developer tooling, local environments, technical debt management, and architecture that enables teams to ship safely and independently. - Build and develop a high-performing engineering organization by hiring and coaching engineering managers and technical leads, establishing clear team ownership and boundaries, and owning headcount planning and the performance bar. - Operate as a member of the leadership team — translating company strategy into technical plans, partnering across Product, Design, Risk, Compliance, and GTM, and representing engineering to the board, banking and network partners, and customers. YOU ARE LIKELY TO SUCCEED IF YOU HAVE: - 15+ years building production software, including 8+ years leading engineers and meaningful time leading managers. - Current technical credibility. You have written or reviewed meaningful production code recently enough that an architecture review is a place you add value, not a place you nod along. - Deep experience with distributed backend systems at scale: data modeling, consistency and idempotency, queues and event-driven design, and the operational reality of running all of it. - A track record of raising an engineering bar. You can point to specific practices you introduced and the measurable change in quality, velocity, or reliability that followed. - Real reliability ownership — you have carried a pager, run incident command during a serious outage, and built the follow-through that kept it from recurring. - Experience in payments, fintech, banking infrastructure, or another domain where money, ledgers, or regulatory obligations made correctness non-negotiable. - You have hired and developed engineering managers, not only engineers. There are leaders you grew who would come work for you again. - Clear written communication. You can make a complex technical tradeoff legible to a CEO, a compliance officer, and a partner's engineering team in the same week. - Executive range. You are as comfortable in a board or partner conversation as you are in a design review, and you can hold a technical position under commercial pressure. - Comfort with ambiguity and speed. You would rather ship something correct this quarter than design something perfect for next year. BONUS ATTRIBUTES: - Hands-on experience with card issuing, processing, or the Visa and Mastercard network stack. - Working knowledge of stablecoins, onchain settlement, custody and key management, or EVM and Solana infrastructure. - Experience operating under SOC 2, PCI DSS, or bank and program-manager oversight. - Experience leading distributed or multi-region teams. THINGS THAT ENABLE A FULFILLING, HEALTHY AND HAPPY EXPERIENCE AT RAIN: Unlimited time off 🌴 Unlimited vacation can be daunting, so we require Rainmakers to take 10 days minimum for themselves. Flexible working ☕ We support a flexible workplace – work from home, come into an office, or both. We want everyone to work in an environment where they're their most confident and productive selves. New Rainmakers receive a stipend to set up a comfortable home workspace. Easy to access benefits 🧠 For US Rainmakers, we cover 95% of your health, dental, and vision plan costs and 90% for your dependents, plus a 100% company-subsidized life insurance plan. Retirement goals💡 Plan for the future with confidence. We offer a 401(k) with a 4% company match. Equity plan 📦 Every Rainmaker gets an equity option plan so we all benefit from our success. Health and Wellness 📚 High performance begins from within. Rainmakers receive a monthly stipend to be used for eligible health and wellness spending like gym memberships/fitness classes, massages, acupuncture - whatever recharges you! In-office meals 🍜 Rainmakers working from the office enjoy lunch and dinner on us, covered with a DoorDash credit. Team summits ✨ Summits play an important role at Rain. Time together helps us build relationships and a common destiny. Expect team and company offsites, both domestic and international.

Location: Remote Workplace: Remote COMPANY At 0x https://0x.org/, our mission is to "Create a Tokenized World Where All Forms of Value Can Flow Freely". We deliver this to web3 builders with a delightfully simple suite of developer APIs that provide faster trading, better prices, and superior user experience. Founded in 2017, we’ve processed over 211M+ transactions and $180B+ in trading volume from users trading on Matcha, Coinbase Wallet, Robinhood Wallet, Phantom, Rainbow, DefiLlama, MetaMask, Zerion, Zapper, and many more. Our investors include Greylock Partners, Pantera Capital, and Jump Crypto. When you join 0x, you’ll become part of a veteran team of crypto builders who know the importance of code quality, team cohesion, and a culture of learning. ABOUT THE ROLE We're looking for a Senior Product Manager to work directly with our CEO across our suite of trading APIs and new product initiatives. This is a hands-on IC role on a lean product team. You'll be deep in the data, close to customers, and working alongside engineers from concept through to launch. This suits a strategic operator with a founder mentality. You take ownership, default to action, and drive things end to end without waiting for explicit instructions. When the data is incomplete, you form a thesis and validate it with prototypes, fast experiments, and tight iterations. WHAT YOU'LL DO - Own strategy and roadmap for your product area - an existing set of our trading APIs or a net-new initiative - Form your product ideas and decisions from three independent sources, not one: - What customers tell you. Have regular check-ins with them, analyze their metrics, understand their pain points and what they're building next - What customers can’t tell you. Dig into onchain and internal data to spot gaps in our performance, shifts in the competitive landscape, and emerging opportunities - What you see yourself. You're plugged into DeFi and active in trading communities. You know firsthand what works and what doesn't - Be a true partner to our engineering leads - reason through hard problems with them, weigh the tradeoffs, and decide what's worth building - Partner with GTM on positioning and driving adoption - Work directly with the CEO and leadership to help shape product direction WHO YOU ARE - 6+ years in product, or the equivalent as a founder, GM, or trader who moved into building - Shipped B2B, API, or infra products with real adoption and revenue - Data-driven - you build your own Dune dashboards and dig into API performance and internal analytics in Grafana, Metabase, or similar - Technically fluent - you hold your own with engineers on routing, execution quality, latency, and whatever else the problem demands - DeFi-native - onchain trading, perps, dex aggregation. You're the user you're building for - Expert AI user - you run agents, automate your workflows, and build tooling that multiplies your output - You exhibit our core values: https://0x.org/post/the-0x-mission-and-valuesdo the right thing, consistently ship, and focus on long-term impact - Able to attend annual in-person team offsites around the globe PREFERRED - Founded a company or was an early builder at a technology startup - taking a product from zero to one - CS background, or an ex-engineer who moved into product - Strong experience in EVM and/or Solana ecosystems - Experience mentoring or up-leveling other PMs - Strong understanding of financial markets BENEFITS - The base salary range for this position is USD $170,000 - $270,000 + equity + ZRX tokens + benefits. Within the range, individual pay is determined by job-related skills, experience, location, business needs, and candidate preferences between the different compensation elements. - Comprehensive insurance (medical/dental/vision/life/disability) for U.S.-based employees — 100% of base plan covered for you and dependents - 401k and FSA for U.S.-based employees - Monthly mobile phone bill, wellness, and pre-tax transportation expense - Covered mental health benefits (included professional therapy sessions) - A supportive remote environment - Lunch reimbursement for all employees across the globe! - Stipend for your ideal remote / WFH set-up: headphones, and any other work gear you may need - 12-week paid parental leave - Great office conveniently located in the SF Financial District for those in the region! - Flexible vacation: Take time when you need it (and we really mean it!) 0x and its associated entities are dedicated to fostering diversity, inclusion, and belonging in its teams and workforce, and are proud to be equal opportunity employers. 0x does not make employment or hiring decisions on the basis of race, color, creed, religion, sex (including those who are pregnant or have given birth), sexual orientation, gender, gender expression or identity, age, disability, medical condition, genetic information, military or veteran status, marital status, pregnancy, citizenship, national origin, immigration or citizenship status, political affiliation, or any other basis that is protected by applicable local, state, or federal laws. This includes not making such decisions based on the status itself, as well as any associations, perceptions, and assumptions made regarding these statuses. 0x will also consider qualified applicants with arrest and conviction records in a way that is consistent with San Francisco’s Fair Chance Ordinance and similar local laws. Our commitment to equal employment opportunity extends to ensuring that all applicants and employees can perform to their fullest potential, including through obtaining reasonable accommodations when necessary.

Location: New York, NY Workplace: OnSite About the Company Rain is the global stablecoin payments platform for enterprises, neobanks, platforms, developers, and AI agents. Our technology allows partners to move, store, and use stablecoins instantly and compliantly through global payment cards, rewards, on/offramps, wallets, and cross-border rails. As both a Visa and Mastercard Principal Member, Rain issues cards that work at more than 175 million merchant locations in over 220 countries and territories. Built natively for stablecoins and trusted by more than 100 organizations worldwide, Rain delivers secure, scalable infrastructure that makes money move freely and instantly around the world. You will have the opportunity to deliver massive impact at a hypergrowth company backed by some of the top investors in fintech, crypto, and SaaS. In January 2026, we closed a $250M Series C led by ICONIQ, valuing Rain at $1.95B, with Sapphire Ventures, Dragonfly, Bessemer Venture Partners, Galaxy Ventures, FirstMark, Lightspeed, Norwest, and Endeavor Catalyst also participating. If you're curious, bold, and excited to help shape a borderless financial future, we'd love to talk. ABOUT THE ROLE Rain is hiring a Senior Product Manager to own our onchain surface — the blockchain layer that everything else at Rain depends on. Stablecoins only work as real-world money if the onchain side is fast, safe, and invisible: collateral held in contracts, settlement across chains, custody and wallet architecture, and the asset and network coverage our partners need to operate globally. This role owns that. This is a senior individual contributor role. You'll be the directly responsible PM for onchain end to end: smart contracts and protocol design, chain and asset integrations, settlement and treasury flows, and the infrastructure underneath it all. You'll work closely with engineering, security, compliance, legal, and directly with our fintech, neobank, and institutional partners. WHAT YOU'LL DO - Own the roadmap for Rain's onchain product — smart contracts, chain and asset coverage, settlement, and payments — and drive it end to end - Partner deeply with engineering on protocol and infrastructure tradeoffs (contract architecture and upgradeability, collateralization and liquidation logic, node/RPC reliability, gas and fee strategy, bridging and cross-chain messaging) and translate them into partner-facing product decisions - Decide which chains, assets, and stablecoins Rain supports and when — build the framework for those calls across liquidity, security, cost, partner demand, compliance considerations, and regulatory exposure - Drive the security bar for onchain work — audits, monitoring, incident response, and the operational guardrails that go with holding real value onchain - Translate complex protocol and blockchain infrastructure into intuitive product surfaces and clear partner-facing documentation - Gather feedback directly from partners, distill it into sharp prioritization, and push the team toward the highest-leverage work - Measure ruthlessly, iterate quickly, and set a bar others want to work to WHAT WE'RE LOOKING FOR - 8-10 years of product management experience, with a track record of shipping products from zero-to-one through scale at a product-led company with a strong engineering culture and high bar for quality - Deep, hands-on blockchain fluency — you've shipped onchain products and can reason unaided about EVM and Solana mechanics (and other chains), smart contract design and upgrade patterns, gas economics, bridging models, and other onchain tradeoffs - Exceptional product judgment and analytical rigor — you're someone others describe as one of the sharpest PMs they've worked with, and you consistently raise the bar for the people around you - A senior, autonomous operator who can define the problem, drive the plan, and own the outcome without needing close direction - Sound instincts on onchain security and risk: you know where value gets lost, you push for audits and monitoring before incidents rather than after, and you can weigh a shipping deadline against a real risk without flinching - Strong technical fluency beyond the chain itself (APIs, distributed systems, payments and ledger design) and the instinct to pull on technical threads yourself rather than defer to engineering - Genuinely excited to live in the details — you believe product quality is won in the specifics and are energized by the work to get them right - Excellent written and verbal communication; you can operate with sophisticated external partners and internal engineering teams with equal ease - Proven ability to ship quickly, measure adoption, and iterate in a fast-moving environment NICE TO HAVE, BUT NOT MANDATORY - Experience with stablecoin issuance, onchain lending or collateralized credit, or tokenized asset products - Background at a protocol, L1/L2, wallet, custodian, or onchain infrastructure company - Familiarity with non-EVM ecosystems (Solana, Tron, Bitcoin L2s) and multi-chain operations at scale - Experience with payments, card issuing, or cross-border fintech products - Working knowledge of the regulatory landscape around digital assets and custody - Previous startup or hypergrowth environment experience Things that enable a fulfilling, healthy, and happy experience at Rain: Unlimited time off 🌴 Unlimited vacation can be daunting, so we require Rainmakers to take 10 days minimum for themselves. Flexible working ☕ We support a flexible workplace – work from home, come into an office, or both. We want everyone to work in an environment where they're their most confident and productive selves. New Rainmakers receive a stipend to set up a comfortable home workspace. Easy to access benefits 🧠 For US Rainmakers, we cover 95% of your health, dental, and vision plan costs and 90% for your dependents, plus a 100% company-subsidized life insurance plan. Retirement goals💡 Plan for the future with confidence. We offer a 401(k) with a 4% company match. Equity plan 📦 Every Rainmaker gets an equity option plan so we all benefit from our success. Health and Wellness 📚 High performance begins from within. Rainmakers receive a monthly stipend to be used for eligible health and wellness spending like gym memberships/fitness classes, massages, acupuncture - whatever recharges you! In-office meals 🍜 Rainmakers working from the office enjoy lunch and dinner on us, covered with a DoorDash credit. Team summits ✨ Summits play an important role at Rain. Time together helps us build relationships and a common destiny. Expect team and company offsites, both domestic and international.

Workplace: fully About Utorg Founded in 2019, Utorg builds the infrastructure for stablecoin payments: on- and off-ramps, self-custodial wallets, and crypto cards. Over 2 million users across 130+ countries already buy, hold, and spend crypto through our app. On the B2B side, the same rails power 2,100+ platforms, with $2.4B+ moved to date. Fully MiCA-authorized across the EEA. PCI DSS Level 2 certified. Backed by Dragonfly, TA Ventures, and Hypra. Location: Remote Tech stack: TypeScript, Node.js, NestJS, PostgreSQL, TypeORM, NATS JetStream, Redis, Jest, Docker, Kubernetes, Google Cloud Platform. Blockchains: EVM-compatible, Bitcoin-family, Tron, Solana, TON. About the role: We're looking for a Senior Backend Engineer who thinks in systems and owns the outcome: two large-scale microservice platforms (30+ and 25+ services), blockchain integrations handling real user funds across multiple networks, a fintech product available in 190+ countries. This role partially offloads the Tech Lead. That means making architectural calls independently, driving complex integrations with payment providers and blockchain networks, and shaping technical direction, not just contributing to it. The bar is high by design. If you've been in rooms where key technical decisions get made, and you were the one making them or should have been, let's talk. What you’ll do: • Own backend architecture across two large-scale microservice platforms (30+ and 25+ services) from system design and API contracts to data flow and inter-service communication. • Lead complex integrations — payment providers, card issuers, blockchain networks, third-party APIs, and take full responsibility for their reliability in production. • Drive performance and scalability — identify bottlenecks, design caching strategies, optimize database queries, and ensure the platform handles growing load. • Shape technical direction — make architectural decisions, evaluate trade-offs, and influence the team’s engineering standards. You’ll partially offload the Tech Lead so the team can scale. • Build and improve AI-powered processes — our team actively uses LLM-based systems to automate operational and development workflows. You’ll contribute to and extend this direction. • Contribute to back-office frontends (~20% of your time) — maintain and extend React-based admin dashboards used by internal teams. • Own features end-to-end from planning and architectural design to implementation, testing, production monitoring, and iterative improvement. • Collaborate closely with Product, QA, and cross-functional teams — produce clear technical documentation, participate in code reviews, and share knowledge. • Take part in a shared on-call rotation — roughly one week a month. Who you are: • Technically strong with an architectural mindset — you don’t just write code; you design systems. You think about data flows, failure modes, and long-term maintainability before writing the first line. • Opinionated and able to defend your decisions — you bring an expert perspective to technical discussions and can articulate trade-offs clearly to both engineers and stakeholders. • Proactive problem-solver — you find issues before they become incidents and propose solutions without waiting to be asked. • Product-driven — most of your time goes into shipping features and solving real user problems, not open-ended refactoring. • Self-motivated and responsible — you thrive in small teams, enjoy autonomy, and take full ownership of the development process. What you will bring (must-have) : • Last 5+ years of production experience in backend development with Type Script/Node.js as the primary stack. Last 2+ years with NestJS in production — modules, providers, middleware, guards, interceptors, microservice architecture with custom transports. • System design experience — decomposing services, designing API contracts, data flow architecture, capacity planning. You can whiteboard a system and explain why you made each decision. • Complex integration experience — you’ve built and maintained integrations with third-party APIs, payment systems, or similar external services in production. You know how to handle retries, circuit breakers, and graceful degradation. • AI-driven development — you actively use AI tools (Claude, Copilot, Cursor) in your daily workflow. Beyond personal productivity, you have experience optimizing business or organizational processes with AI/LLMs—building automations, internal tools, or workflows powered by language models. • Fintech domain knowledge: PCI DSS, GDPR, KYC/AML, payment systems. • Deep PostgreSQL expertise — schema design, indexing (partial, GIN/GiST), query optimization, migrations with zero downtime, database-per-service pattern. • Hands-on microservices experience — not a monolith split into modules. You’ve dealt with inter-service communication (RPC + pub/sub), message brokers, idempotency, eventual consistency, saga/outbox patterns. • Performance engineering — profiling, caching strategies, load analysis, bottleneck identification. You can optimize a slow query and a slow service alike. • Strong testing discipline — unit tests (Jest), integration tests with real databases, microservice testing. • Security-conscious — in fintech and crypto, every code path can touch real user funds. You build accordingly. • Skilled in technical research — evaluating trade-offs, testing hypotheses, and making data-driven architectural decisions. • English proficiency at Upper-Intermediate. Fluent in Russian. Nice to have: • Production blockchain experience — you’ve worked with on-chain transactions, multiple networks, and real user funds. You understand HD wallets (BIP32/BIP39), smart contracts, ABI, ERC-20/SPL tokens, and the differences between account-based and UTXO models. Experience with libraries like ethers.js, viem, and solana/web3.js. • Experience with NATS JetStream as a transport layer (streams, consumers, delivery policies). • Observability: OpenTelemetry, Prometheus + Grafana, structured logging (pino), distributed tracing. • Kubernetes beyond basics: Kustomize/Helm, deployment strategies, resource management. • Experience mentoring developers. • React basics for back-office UIs (functional components, hooks, Redux, Material-UI). Interaction with other teams: Close collaboration with Product, QA, Frontend, and Mobile. Cross-functional communication is an essential part of the role. Partially offload the Tech Lead: own architectural and technical decisions, independently drive complex integrations, and influence the platform's technical direction. This is not an executor role. We need someone with strong expert opinions who can be relied upon for key technical decisions. Key results (30-60-90): 30 days: First features shipped to production. Deep dive into the stack, architecture, and domain (blockchain, fintech). Clear understanding of core services and how they interact. 60 days: Independently drives a complex integration or a major feature. Participates in architectural code reviews. Brings first proposals for improvements. 90 days: Makes architectural decisions on their scope. Influences technical direction. Partially offloads decision-making from the Tech Lead. Participates in planning. What we offer: • Work fully remote as part of an agile, international team reshaping the future of finance. • An engineering culture that encourages the adoption of modern tools and development practices, giving engineers real influence over technologies, workflows, and technical decisions. • Two career tracks — grow into Tech Lead or deepen your expertise as Staff/Principal IC. You choose the path. • Career progression and professional development in a forward-thinking fintech environment. • Competitive salary range based on individual performance review. • Transparent feedback and a culture that values ownership, open dialogue, and visible impact. Recruitment Process Application. Submit your application and CV. Application Review. Our team reviews your experience and qualifications. HR Interview. An introductory conversation to discuss your professional background and expectations. Technical Interview. Assessment of your technical expertise, system design skills, and relevant experience. Team Lead Interview. A discussion focused on team fit, collaboration style, and alignment with engineering culture. Offer. Receiving the offer and details about the next steps.

Location: United States; South America; Europe Workplace: Remote ABOUT INJECTIVE LABS Injective Labs is trailblazing a new dawn for Web3 enabled finance. We are the core contributors to Injective, one of the fastest growing blockchains in the industry. Injective provides an interoperable smart contracts platform that is optimized for building decentralized finance applications. Interoperability is at the core of Injective, which is natively integrated with chains such as Ethereum, Cosmos and Solana. Developers can rapidly launch premier financial applications suited for mass adoption using Injective’s infrastructure and specialized DeFi primitives such as the world’s first fully on-chain order book. Our team has decades of experience spearheading the largest financial institutions and tech organizations. Injective is incubated by Binance and is backed by leading firms such as Jump Crypto, Pantera and Mark Cuban. ABOUT THE ROLE We're looking for a Product Designer to work on the Injective web products, and DAPPs. This is an outstanding opportunity to work fully hands-on in DeFi. The ideal candidate will be able to map out a diverse set of creative solutions and work with leadership to help craft Injective's products. RESPONSIBILITIES: - Leading design projects across the entire product lifecycle and multiple product launches - Propagate a strong design practice, influence product strategy, and impact our product execution and quality - Partnering closely with engineering, product, and business teams to find elegant but practical solutions to design challenges - Listening to users’ feedback and influence on the product-design strategy and solutions that delight our customers - Develop and maintain product design systems - Rapidly producing multiple concepts and prototypes; knowing when to apply pixel-perfect attention to detail, and when to make low-fi sketches and prototypes   WHO YOU ARE: - 6+ years in a UI/UX design role (experience at a consumer fintech company is preferred) - Previous experience working in the crypto space - Excellent Figma skills - Adobe creative suite (Photoshop, Illustrator, After Effects) is a plus - Proven experience building excellent consumer-facing mobile and web products - Experience in developing wireframes and prototypes - Experience in developing and maintaining design systems - Ability to communicate optimally on an ego-free, highly energetic, and cross-functional team - Ability to get feedback efficiently and pushback if necessary - Proven ability to lead product design discovery and manage the end-to-end design process, from initial concept through final delivery - Strong information design experience with a solid foundation in UX design heuristics - Deep knowledge and applied experience in graphic design (layout, typography, color) - A portfolio that demonstrates love and care for their craft - A passion for building and creating in a fast paced, start up environment - Based in North/South America or Europe time zones PREFERRED: - Previous experience working at an exchange (CEX or DEX) WHY WORK WITH US? - Competitive salary and INJ token award - Unlimited PTO - Equipment - Home Office Stipend - Flexible working hours - Opportunity to work on cutting-edge blockchain technology in the finance industry - Collaborative team culture with opportunities for professional growth and development - Global team meet ups As an equal opportunity employer we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws. We will only contact candidates using emails from the @injectivelabs.org http://injectivelabs.org domain. If you are approached by any other account or domain regarding this position, it was not sent by us. Please stay cautious and report any suspicious communication.

Location: Remote-US Workplace: Remote Phantom https://phantom.com is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural moments that shape them, building conviction through real-time data and the verified performance of top traders. With self-custody and access to open networks at its core, Phantom lets them control their financial moves in the same app they use to safely store or spend money worldwide. Phantom has reached #1 in Google Play's finance category and consistently ranks in the top 50 apps across all categories. Check out our Forbes Fintech 50 https://www.forbes.com/sites/ninabambysheva/2026/02/23/inside-phantoms-battle-plan-to-win-the-crypto-fueled-superapp-war/ and CNBC and Statista's World's Top Fintech Companies 2026 https://www.cnbc.com/worlds-top-fintech-companies-2026/! We are around 180 people, fully remote, backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm. Phantom is looking for a Head of Business & Corporate Development to lead our partnerships, strategic intelligence, and M&A functions. You will be Phantom's outward-facing business leader, deepening and diversifying partnerships across crypto and traditional fintech to unlock and extend foundational capabilities, drive distribution and revenue, and develop the pipeline of inorganic opportunities that close capability gaps faster than we could build or hire. You'll sit within the Ops Org alongside BizOps and Communications, the business layer of Phantom, and serve as the internal expert that leadership reaches out to for everything from market intelligence to deal execution. RESPONSIBILITIES BUSINESS DEVELOPMENT & PARTNERSHIPS - Partner with Product to launch and scale major business lines, unlocking foundational capabilities through strategic partnerships - Lead business development strategy across user growth, monetization, and platform expansion - Own revenue targets, measuring impact and deepening integration across the product stack CORPORATE DEVELOPMENT & STRATEGIC INTELLIGENCE - Map the competitive landscape and build market intelligence that provides a real point of view on where the space is heading - Build and maintain a pipeline of inorganic options that close capability gaps and accelerate key metrics - Own deal processes end to end, sourcing, diligence, negotiation, closing, and integration - Deliver execution-ready recommendations, not research reports QUALIFICATIONS - A leader with 10+ years of experience spanning business development, partnerships, corporate development, M&A, or strategy, or a combination of investing and operator backgrounds - Deep knowledge of the crypto and/or fintech ecosystem, with a strong network in Solana and beyond; you are plugged in, get calls from founders and investors, and have a genuine point of view on where things are heading - Demonstrated track record of making calls that influenced executive decision making or product direction - Meaningful deal experience across partnerships and/or M&A: you can speak to specific transactions, what you owned, and what you learned - A cross-functional operator who is comfortable collaborating across Product, Engineering, Ops, Marketing, and Finance - A strategic negotiator skilled at structuring deals with decentralized protocols, regulated financial players, and acquisition targets alike - Exceptional judgment and prioritization; ability to move at speed with 80/20 thinking; you know what to prioritize and what to deprioritize, and you don't confuse activity with impact - Strong written and verbal communication: crisp memos, curated analysis, clear narratives - Experience managing a lean team, or a proven high performer who can take on management duties Why Work With Us Phantom's journey to becoming a global trading app began with making crypto easier to use. Today, we’re building on that foundation to help people discover the markets that matter, make informed financial moves, and safely store or spend their money worldwide. Joining Phantom means helping shape that next chapter: building products that bring the freedom of open markets to more people.   - Build for global impact: Create products used by tens of millions of people, making innovative financial markets more accessible to users around the world. - Make complexity feel simple: Solve meaningful challenges across design, engineering, and user experience to make discovering markets and managing money seamless. - Put users in control: Help build a future where people have greater freedom over their assets and financial decisions, with security and self-custody at the foundation. Benefits (only available to full-time employees) - Competitive salary and equity - Comprehensive insurance (medical/dental/vision): base plan 100% covered - Flexible hours and a long-standing, supportive remote environment - Unlimited vacation: Take time when you need it (and we really mean it!) - 401(k) retirement plan - Wellness stipend - Weekly meal stipend - Learning & Development stipend - Remote / WFH set-up stipend We strongly encourage candidates of all backgrounds to apply. We believe that our work is stronger with a variety of perspectives, and we’re eager to further diversify our company. If you have a background that you feel would make an impact at Phantom, please consider applying. We’re committed to building an inclusive, supportive place for you to do the best work of your career. By submitting your resume and application materials, you acknowledge and agree that Phantom Technologies, Inc. ("Phantom") collects and processes your personal information (including application materials, interview records, and related data) to evaluate your candidacy. Phantom may use AI-powered tools and third-party service providers for transcription, note-taking, scheduling, and other administrative tasks. Phantom does not sell your information and your materials will be handled securely and in accordance with applicable data protection laws.

Location: Hong Kong, Hong Kong SAR; Singapore, Singapore Staff/Senior Java Engineer, OKX Wallet (Web3) Who We Are OKX Wallet is OKX's self-custody wallet, built for users worldwide to securely and conveniently store, manage, and use their on-chain assets. The wallet backend operates in a multi-chain, multi-asset, high-concurrency environment shaped by on-chain state uncertainty and strict fund-security requirements — combining the complex-systems challenges of traditional internet backends with the transaction, signing, and on-chain interaction problems unique to blockchain. We're looking for a Senior Java Engineer with roughly 5–10 years of backend experience: someone with strong engineering fundamentals who can independently own core modules, exercise sound judgment on complex problems, and proactively coordinate across upstream and downstream teams to drive work to completion. What You'll Do Own core wallet backend modules. Build and continuously improve address management, asset synchronization, transaction construction, broadcasting, on-chain confirmation, gas estimation, nonce management, and transaction-state tracking. Understand each module's role in the full wallet flow, and keep stability, performance, and maintainability front of mind. For complex requirements, break the problem down before choosing an implementation rather than stacking code or reusing old designs. Build transaction and on-chain interaction scenarios. Work on transfers, token approvals, contract interactions, cross-chain, swaps, DApp connections, and signature-request handling. Understand a transaction's full lifecycle — from initiation through construction, signing, broadcasting, on-chain confirmation, and final state update — and diagnose issues like stuck transactions, duplicate submissions, state inconsistencies, and on-chain success that isn't reflected in the business system, using logs, on-chain data, and call traces. Support multi-chain and new-chain integration. We already support EVM, Tron, and Solana, and continuously onboard new public chains, Layer 2 networks, and asset standards. Contribute to technical research, integration design, and feature development, accounting for differences in address models, account systems, transaction structures, signing methods, fees, and confirmation mechanisms — as well as node stability, asset sync, exception compensation, monitoring, and security boundaries. Ensure stable operation. Contribute to day-to-day stability work — monitoring, alerting, rate limiting, graceful degradation, retries, compensation, data reconciliation, and troubleshooting. When incidents occur, help investigate, narrow scope, and fix root causes; for recurring issues, drive systemic fixes such as added monitoring, stronger fallbacks, or design improvements. Drive your projects to delivery. Take ownership of the modules and projects you're responsible for. On work spanning product, QA, frontend, infrastructure, or other backend teams, proactively sync information, surface dependencies and risks, and drive issues to resolution. When requirements are unclear or opinions diverge, lay out the context, offer your own judgment, and help build consensus. Continuously raise engineering quality. Participate in design discussions, code reviews, and system optimization. Spot unreasonable designs, duplicated logic, and latent risks, and propose actionable improvements. Document technical decisions, post-incident learnings, and best practices, and help less-experienced teammates. Apply AI in daily development. Use AI coding tools (Claude Code, Cursor, Codex, etc.) to assist with code comprehension, scaffolding, unit tests, code review, troubleshooting, refactoring, and documentation — validating AI output for correctness, project conventions, performance, and security rather than using it unchecked. What We're Looking For Solid Java backend fundamentals. ~5–10 years of Java backend experience with a strong grasp of collections, concurrency, thread pools, the JVM, network communication, and common performance issues. Proficient with Spring Boot, Spring Cloud, MyBatis, or comparable stacks, able to independently design and build medium-to-large backend modules and reason about the mechanics behind the frameworks you use. Strong system design ability. Experience with complex or high-concurrency systems; comfortable with idempotency, retries, compensation, caching, message queues, distributed locks, data consistency, rate limiting, and service degradation. Able to own module- or service-level design and clearly explain the core flow, failure scenarios, and key trade-offs. Cognitive ability and judgment. Able to understand context and goals on ambiguous problems, separate symptom from root cause, and choose a fitting solution based on business value, user experience, stability, cost, and security — rather than reflexively adding complexity. Drive and ownership. Able to independently own a module or project end to end, from design through development, testing, and launch. Proactively communicates and resolves dependencies, risks, and blockers, and follows through on launch outcomes rather than stopping at code merge. Blockchain or wallet experience. Experience with wallets, blockchain, trading platforms, on-chain data services, or related systems. Understands addresses, public/private keys, mnemonics, transaction signing, broadcasting, on-chain confirmation, gas, and nonce; familiar with the transaction mechanics of at least one of EVM, Tron, or Solana, and with token standards such as ERC-20 and TRC-20. (Strong backend fundamentals and fast learning can offset gaps in blockchain coverage.) High security awareness. Sensitive to private-key, signing, permission, and user-asset security; familiar with replay protection, API authentication, tamper resistance, sensitive-data protection, and least-privilege principles. Actively considers malformed input, duplicate requests, privilege bypass, and data-leak risks when building transaction features. Independent production troubleshooting. Able to diagnose live issues via log analysis, metrics monitoring, distributed tracing, and thread/memory analysis; can form hypotheses and narrow scope even with incomplete information. Hands-on experience with performance degradation, timeouts, message backlogs, data inconsistencies, memory issues, or unstable third-party services. Engineering in the AI era. Willing to use AI coding tools to improve daily efficiency and able to judge whether AI output meets real business requirements before shipping it. Has a basic understanding of prompts, context management, RAG, AI agents, and MCP, or a genuine willingness to keep learning — treating AI as an engineering tool, not requiring an algorithm/model-training background. Nice to Have Integration work on new public chains, new asset standards, or cross-chain protocols Familiarity with WalletConnect, DApp Browser, or signature-request handling Knowledge of MPC, multisig, hardware wallets, or TEE-based key-security schemes Experience with Swap, staking, cross-chain bridges, or DeFi aggregation Address risk detection, allow/deny lists, anti-fraud, or wallet risk-control experience High-concurrency transaction systems, blockchain node services, on-chain data indexing, or transaction-state-tracking systems Familiarity with RPC calls, block scanning, chain reorgs, transaction compensation, and reconciliation mechanisms JVM performance tuning, stability governance, or complex production-incident experience Cross-team collaboration with a track record of driving projects to delivery Real projects built with AI — e.g. AI code review, development agents, MCP servers, intelligent troubleshooting, or knowledge bases Follows developments in AI coding assistants and LLM applications and shares practical takeaways with the team Perks & Benefits Competitive total compensation Comprehensive insurance coverage for you and your dependents More benefits to be discussed after you join Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX 's Candidate Privacy Notice .

Location: United Kingdom; Denmark Workplace: Remote The engineering team at Chainalysis is inspired by solving the hardest technical challenges and building products that establish trust in cryptocurrencies. We're a global organization that thrives on challenging work and doing it alongside exceptionally talented teammates. Our industry evolves rapidly, and our mission is to build a flexible, AI-driven platform that automates entity resolution, optimizes data labeling pipelines, and creates predictive models that identify illicit patterns before they escalate. Our data and solutions have been used to solve some of the world's most high-profile criminal cases and grow consumer access to cryptocurrency safely. Now, by pairing the industry's most trusted blockchain data with agents that reason, investigate, and act, we help our customers scale their workflows as the cryptocurrency economy becomes increasingly mainstream. The Protocols team delivers high-quality, low-latency blockchain datasets that serve as the trusted foundation for Chainalysis’ investigation, compliance, data and security products. We currently support more than 30 blockchains, translating on-chain data into actionable intelligence. In this role, you’ll: - Architect and evolve scalable, reliable, and performant systems for ingesting and parsing complex blockchain data. - Leverage AI-native engineering workflows (LLMs, automated agents) to increase team velocity and code quality. - Provide blockchain protocol expertise (EVM, UTXO, etc.) to the team and cross-functional stakeholders. - Manage the full software development lifecycle, including production monitoring, debugging, and maintaining reliability of our pipelines and services. - Work closely with Product Managers to ensure our datasets meet the evolving needs of the crypto ecosystem. - Guide junior and mid-level engineers through code reviews, design docs, and technical mentorship. We’re looking for candidates who have: - Extensive experience building distributed systems or data-intensive applications. - Experience working with TypeScript either in a professional or personal capacity - A bias to ship and the ability to iterate quickly in a fast-moving environment. - Demonstrated ability to leverage AI assisted development tools to increase velocity while maintaining reliable, maintainable code. - A deep understanding and experience of at least one Blockchain protocol You might also have: - Knowledge and experience with non-EVM chains such as Solana, TON, and Sui. - Experience with indexing and ETL at scale (Spark/Databricks). - Knowledge of Infrastructure as Code (Terraform) and managing services in Kubernetes. - Contributions to open-source blockchain projects. Technologies we use: - Languages: Java, TypeScript - Data Processing: Spark, Databricks, PostgreSQL - Infrastructure: AWS (Serverless & EKS), Kubernetes, Terraform - CI/CD: GitHub Actions AI at Chainalysis AI is not a feature at Chainalysis - it is a new way of working. One that turns instructions into work done, and helps us move faster than the threats we're built to counter, and we expect our employees to take ownership of the output and ensure quality. As the world's most trusted blockchain analytics platform, Chainalysis sits at a rare intersection of proprietary data, regulatory relationships and crypto expertise that makes it uniquely placed to shape and lead the next era of AI-driven intelligence - and we expect everyone here, regardless of role, to be an active part of it. AI fluency is tied directly to how we measure performance and how we plan to win. There is no substitute for your own curiosity. We provide the tools, workflows, and space to experiment - but the expectation is that you develop these capabilities yourself, bring ideas, and collaborate across teams to reinvent the way work gets done. We are not using AI to do less. We are using it to do what was never possible before. About Chainalysis Chainalysis is the blockchain data platform, making it easy to connect the movement of digital assets to real-world services. Powered by deep blockchain data and AI, organizations can investigate illicit activity, manage risk exposure, and develop innovative market solutions built on the industry's most trusted blockchain intelligence. Our mission is to build trust in blockchains, blending safety and security with an unwavering commitment to growth and innovation. You belong here.  At Chainalysis, we believe that diversity of experience and thought makes us stronger. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. We’re ensuring we keep learning by committing to continually revisit and reevaluate our diversity culture. We encourage applicants across any race, ethnicity, gender/gender expression, age, spirituality, ability, experience and more. If you need any accommodations to make our interview process more accessible to you due to a disability, don't hesitate to let us know. You can learn more here https://go.chainalysis.com/rs/503-FAP-074/images/Interview%20Accommodations%20Request.pdf. We can’t wait to meet you.

Location: USA Workplace: remote JTX is our trading app, and it runs on the fastest market infrastructure on Solana, which we also built. What nobody has done yet is make that speed something a trader can feel. That is this job. JTX is live. Two frontend engineers built it to this point and you would be the third. The work now is one to a hundred: harden what exists, make it hold up under real volume, expand onto mobile, and raise the ceiling on every screen a trader touches. We're a small team with product-market fit. That means: High ownership: every team member drives significant technical decisions and shapes our product roadmap. Fast execution: we ship rapidly and iterate based on real-world feedback. Progress, not motion. High quality bar: the details are the product. We don't trade them for speed. About the Position You'll own the surface of JTX across web and mobile: order entry, market data, charts, positions, execution quality, onboarding, and the wallet flows underneath all of it. The role suits a generalist with strong taste. You'll partner with design, product, and the infrastructure team, and you'll make architectural calls that stick for years. If you've spent time thinking about how markets actually work on Solana and want to build the product layer on top of that, this is the role. Stack: React 19 + TypeScript on Next.js. Jotai + TanStack Query. Tailwind with a token-based design system. TradingView Advanced Charts on our own datafeed. Privy wallets. WebSockets to our engine. Web ships as a PWA; native mobile apps are in development. What's Hard Right Now Data freshness: several live WebSocket streams (order book, trades, candles, stats) feed many panels at once; keeping them fast, consistent with each other, and honest through async gaps (stale quotes, pending fills) Performance: a data-dense terminal that stays smooth under constant streaming updates, including on mid-range hardware Security: wallet signing, session auth, strict CSP, hardened supply chain Shipping volume: three engineers own the entire surface of a live exchange; the backlog is bigger than the team, so throughput and prioritization are part of the job Keeping product behavior and design language consistent between web and mobile while being very attentive to nuances of each mobile platform Making execution quality something a trader can see in a glance instead of something they take on faith What You'll Do Build and own the JTX client across web and mobile Ship real-time trading interfaces: order books, charts, order entry, positions, fill and execution visibility Hit tight latency and render budgets against streaming market data, and decide what belongs on the client versus the server Build wallet and signing flows, including self-custodial and embedded wallet onboarding Own the shared component, state, and data layers the rest of the product team builds on Make architectural decisions that hold as the codebase, the team, and the user base grow by an order of magnitude Ship fast, watch real users, iterate What We're Looking For Attention to detail bordering on obsessive. You can look at a screen and say what is wrong with it, and it bothers you until it's fixed. 5+ years building production frontend, including something real-time, data dense, or financial Deep React and TypeScript. You can explain why a component re-rendered and then fix it. Mobile experience: React Native, Expo, or native iOS and Android Strong fundamentals: browser performance, memory, websockets, network behavior under load Security-first instincts around signing flows, key handling, and what should never touch a log Comfortable in a codebase that is already live. You can refactor and clean up without stopping shipping. Able to weigh business and engineering tradeoffs, and to explain complicated things simply Relevant Background If you have experience in any of the following, you may be a good fit: Trading terminals, exchange or brokerage frontends Consumer fintech apps at scale Charting, time series, or high-frequency data visualization (canvas, WebGL) Solana or EVM app development, wallet integrations, transaction signing Maintaining a public TypeScript library or design system

Задачи: - Разрабатывать новый функционал продукта и участвовать в запуске новых проектов. - Реализовывать pixel-perfect интерфейсы по макетам Figma, соблюдая дизайн-систему и высокие стандарты качества. - Работать со сложной бизнес-логикой, улучшать архитектуру приложения, заниматься рефакторингом и поддержкой существующего функционала. - Писать unit- и integration-тесты, самостоятельно проверять качество реализованных решений. - Оптимизировать производительность приложения, улучшать SEO и участвовать в развитии продукта вместе с дизайнерами и командой разработки. Требования: - Коммерческий опыт разработки на React и Next.js в продуктовой компании. - Отличное знание TypeScript, включая generics и строгую типизацию. - Опыт работы с App Router и React Server Components. - Опыт работы с react-hook-form, Zod и Zustand. - Опыт разработки в рамках дизайн-систем и работы с Figma. - Опыт оптимизации производительности (Core Web Vitals, rendering, bundle size) и понимание принципов SEO. - Опыт написания unit- и integration-тестов. Будет преимуществом: Stripe, Coinflow; Web3 / Solana; next-intl; Feature-Sliced Design (FSD); epub.js; Google Tag Manager, GA4, маркетинговые интеграции и аналитика. Условия: - Полностью удалённая работа. - Оплата в валюте. Оформление по b2b контракту. - Гибкость, минимум бюрократии. - Небольшая команда, где ваш вклад заметен.

ОБЗОР ПОЗИЦИИ И ПРОДУКТА Финтех-компания, развивающая некастодиальный криптокошелёк, платежные крипто-карты и инфраструктуру IBAN-счетов, находится в поиске Senior React Native разработчика. Позиция предполагает сквозное владение продуктовыми фичами от проектирования архитектуры до вывода в прод и мониторинга стабильности приложения под реальными средствами пользователей. ЧЕМ ПРЕДСТОИТ ЗАНИМАТЬСЯ • Развитие базового функционала кошелька (отправка/получение активов, балансы, история транзакций, внутренний swap/bridge, on-ramp интеграции); • Разработка и поддержка фич крипто-карт и IBAN-модулей (платежные шлюзы, управление подписками, онбординг новых провайдеров инфраструктуры); • Сквозное владение функционалом (end-to-end): от архитектурного планирования до вывода релизов на продакшен и последующего мониторинга; • Плотное кросс-функциональное взаимодействие с командами Product, Design, QA и backend. ТРЕБОВАНИЯ К КАНДИДАТУ • От 5 лет коммерческого опыта в сфере фронтенд-разработки и от 3 лет практического опыта работы с React Native на продакшен-проектах (в доменах fintech или crypto); • Подтвержденный практический опыт работы с ончейн-транзакциями в продуктах, оперирующих реальными средствами пользователей; • Экспертный уровень владения React, React Native (bare workflow + Expo), TypeScript, Jest, Detox; • Уверенные навыки работы с Git и настройки пайплайнов GitHub Actions; • Владение английским языком на уровне Upper-Intermediate и выше, свободный русский язык. ТЕХНОЛОГИЧЕСКИЙ СТЕК ПРОЕКТА • Mobile: React Native (bare), Expo, TypeScript, React Query, Zustand, Redux Toolkit, Reanimated, Skia; • Testing: Jest, Detox; • Web3 / Blockchain: WalletConnect, EVM, Bitcoin-family, Tron, Solana, TON. УСЛОВИЯ И БЕНЕФИТЫ • Полностью удаленный формат работы со стабильной загрузкой на полный день; • Фиксированный конкурентный оклад с выплатами в USDT ($4000 – $5000); • Работа в интернациональной распределенной команде без бюрократии; • Возможность напрямую влиять на развитие технологичного Web3-продукта.

Location: Serbia Workplace: remote About You We’re looking for a Web3 Fullstack Engineer to build the layer where web2 and web3 meet. Our mission is seamless web2 ↔ web3 integration — letting players and developers interact with digital items and move them through their full lifecycle (mint, own, trade, transfer, redeem, retire) without ever having to think about which side of the chain they’re on. You’ll work across the whole stack: wallet-connected frontends, high-throughput backend services, and the smart contract and indexing layers that make on-chain items feel as fast and familiar as anything in web2. This is a hands-on engineering role with broad ownership. A player buying an item with a credit card, a game granting an in-game asset, and a marketplace settling a peer-to-peer trade should all resolve to the same coherent item model — regardless of whether the item lives in a database, a custodial wallet, or on-chain. Making that experience invisible to the end user, and reliable for the developer, is the core of the job. You care about product quality and developer experience as much as protocol correctness. You’re comfortable owning a feature end to end, reasoning about trust and custody boundaries, and making pragmatic calls about what belongs on-chain versus off-chain.   About Us Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit xsolla.com Responsibilities Build Seamless Web2 ↔ Web3 Integration — Design and ship the flows that let users move between traditional accounts/payments and on-chain wallets without friction: custodial and non-custodial wallets, account abstraction, gasless transactions, and fiat on-ramps. Own the Digital Item Lifecycle — Build the systems behind item mint, ownership, transfer, trading, and redemption — keeping on-chain state and off-chain records consistent, auditable, and fast. Develop Fullstack Features — Deliver end to end across wallet-connected frontends, backend services, and the smart contract / indexing layer that powers item ownership and turnover. Model Items & Ownership — Design data models and APIs that represent items uniformly whether they live off-chain, in a custodial wallet, or on-chain, and keep them in sync. Ensure Reliability of Value Flows — Anything that moves items or money must be correct under failure: idempotency, reconciliation, replay safety, and clear recovery paths. Integrate Blockchains & Marketplaces — Interact with EVM chains, token standards, indexers, and marketplace/settlement flows; abstract their differences behind clean internal interfaces. Collaborate Across Teams — Work with product, security, payments, and game-facing teams to turn business needs into well-scoped technical plans, and document decisions so they stand on their own. What You Bring Web3 & Digital Assets Web2 ↔ Web3 Integration — Hands-on experience bridging traditional systems with on-chain ones: wallet onboarding, custodial vs. non-custodial trade-offs, account abstraction, gasless/relayed transactions. EVM & Smart Contracts — Working knowledge of EVM chains and Solidity, including reading, integrating with, and reasoning about the safety of contracts. Token & Item Standards — Practical understanding of ERC-20, ERC-721, and ERC-1155, and how they map to real game items, ownership, and transfers. On-chain / Off-chain Sync — Experience keeping blockchain state consistent with off-chain databases: indexing, event ingestion, reorg handling, and reconciliation. Frontend Engineering TypeScript & React — Strong TypeScript and React skills for building responsive, production-grade interfaces. Wallet Integration — Experience with wallet connectivity and web3 client libraries (e.g. wagmi, viem, ethers.js, WalletConnect) and embedded/social login wallets. Backend Engineering Backend Services — Solid backend skills in Node.js and Go: clean APIs, concurrency, and performance under load. Distributed Systems — Experience with distributed systems and their trade-offs (consistency, availability, failure modes), especially where correctness of value transfer matters. Data & Infrastructure PostgreSQL — Schema design, query optimization, and migrations at scale. Kubernetes — Deploying, operating, and debugging services in a k8s environment. Message Streaming — Kafka or NATS — event-driven patterns, consumer groups, at-least-once delivery. Git & CI/CD — Git and modern CI/CD practices. Domain Context Gaming Industry Experience — Experience building or operating platforms for game developers, publishers, or players — especially anything touching in-game items, economies, or ownership. Nice to Have Experience building NFT marketplaces, item trading, or secondary-market / settlement systems Familiarity with blockchain indexing tooling (The Graph, custom indexers) and node/RPC infrastructure Experience with account abstraction (ERC-4337), smart wallets, or paymaster/relayer setups Background in payments or fiat on-ramp integration bridging traditional commerce and crypto Experience with non-EVM ecosystems (Solana, etc.) or cross-chain / bridging patterns Familiarity with security and compliance relevant to digital assets: custody, key management, audit logging, KYC/AML touchpoints Contributions to open-source web3, wallet, or tooling projects Hands-on, up-to-date experience with modern AI tools (e.g. Claude, Copilot, Cursor) for code generation, review, and accelerating day-to-day engineering work Benefits   We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees through a comprehensive Benefits Program. This includes unlimited Flexible Time Off and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.   The duties and responsibilities of this position may evolve over time to support the organization’s goals and individual growth. This job description is intended to outline the general nature and level of work being performed and is not intended to be an exhaustive list of all duties, responsibilities, and qualifications required.   By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially.   Xsolla takes your privacy seriously and will not sell or externally distribute any personal data received during the hiring process. In accordance with applicable data protection laws, Xsolla is committed to protecting your personal information and respecting your privacy.   For any inquiries related to data privacy, please contact: careers@xsolla.com   Explore more opportunities at: https://xsolla.com/careers