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Scala Engineer is responsible for building and optimizing high-performance backend systems that power the data-driven applications. In this role, you will work with modern streaming technologies, distributed processing frameworks, and cloud-native architectures to deliver scalable, reliable, and high-availability solutions.

Опыт коммерческой разработки: от 3–5 лет в backend или системном программировании, из которых от 2 лет — активная коммерческая разработка на Rust. Асинхронное и многопоточное программирование: уверенное владение async/await, опыт работы с многопоточностью (concurrency) и асинхронными средами выполнения (фреймворк Tokio, библиотеки async-std, crossbeam).

- Work on greenfield performance-oriented projects in a fast-moving startup environment. - Research ideas for accelerating EVM bytecode execution.

What you will do Develop and maintain market data components and connectivity to cryptocurrency exchanges. Develop and maintain trading algorithms and add features to the trading system.

Разрабатывать и поддерживать REST API для мобильного приложения и веб-платформы. Работать с базами данных, обработкой и анализом информации.

Проектирование и разработка control-plane компонентов платформы на Python/Go: API эндпоинтов, сервисов управления состояниями, планировщиков асинхронных операций. Разработка и поддержка агентов автоматизации жизненного цикла бэкапов PostgreSQL-кластеров:

Декомпозировать существенные доработки системы на подзадачи; Реализовывать новый функционал в рамках сформулированных задач, требований и принятых в команде стандартов;

С нуля собирать и запускать новые AI-продукты. Разрабатывать backend на Python: FastAPI, async, Pydantic.

Для данной позиции подходят следующие локации: Польша, Грузия, Казахстан, Кыргызстан, Узбекистан, Армения, Сербия, Черногория, Турция. Кандидат должен быть доступен для работы в стандартные рабочие часы клиента — с 9:00 до 17:00 по времени штата Аризона, а также придерживаться рабочего календаря США (с учетом американских праздничных дней). В Беларуси позиция открывается через VPN. Контакт для отклика: kvishnevskaya@aristeksystems.com.

-Лидировать разработку продуктов и сервисов цифровой экосистемы. -Формировать и развивать архитектуру экосистемы.

In this role, you’ll: Own and improve our data ingest Java service for enriched transfers generation and aggregations. Design and tune PostgreSQL transaction batching, indexing, and replication strategies.

Location: Almaty, Kazakhstan Workplace: OnSite WHY WORK AT HIGGSFIELD AI? Higgsfield AI is the fastest-scaling generative AI company in history, hitting $1B in annual revenue run rate, 30M+ users worldwide, 6M+ generations per day, and powering 390 of Fortune 500 brands. We're building at the absolute frontier of AI-powered video creation and next-generation creative tools. Joining Higgsfield means becoming part of a high-impact team shaping the future of AI-native experiences, at a company that isn't just moving fast, but rewriting what fast looks like. Who we are looking for Everyone at Higgsfield is an A-player. We’re looking for teammates who bring: - A strong product sense and an understanding of how interface decisions affect conversion, retention and revenue. - The ability to design clear user states and in-product communication, not just build screens. - Broad context over narrow specialization: comfort working across product verticals and monetization mechanics. - Resilience and focus in a high-intensity startup environment, where priorities shift fast and the schedule isn’t always predictable. What you will work on - Build the revenue-critical parts of Higgsfield products: paywalls, pricing pages, checkout and subscription flows used by millions of people. - Develop onboarding, upsell and in-product communication that drive conversion and retention. - Design and implement complex UI state logic across plans, limits, trials and payment states, where small mistakes are costly. - Run A/B tests and PLG experiments quickly, and work closely with analysts to turn data into product decisions. - Keep the interface fast and responsive, because every millisecond in the purchase flow affects conversion. - Ensure product quality through unit, integration and end-to-end tests for key payment and onboarding scenarios. Your must haves - Experience building complex software and teaming up with others to get it done. - Strong communication, collaboration and commitment to completing projects. - Experience with payment integrations, checkout or subscription flows. - Experience with A/B testing, feature flags and product analytics. - Knowledge of CI/CD, bundlers, profiling and performance optimization. - Ability to get up to speed on new context quickly and take full ownership of a task. - Willingness to work in a fast-paced startup environment. THE DEAL - Competitive salary in USD + stock options. - On-site role in our Almaty office (we will relocate you from anywhere) - Full-time position with high growth potential.

Ищем .NET-разработчика в Scrum-команду, которая развивает современные desktop-продукты.

Задачи: — Разрабатывать web-приложения на PHP и JavaScript — Поддерживать, дорабатывать и исправлять существующие web-приложения — Аккуратно развивать работающие решения и участвовать в принятии технических решений — Взаимодействовать с коллегами и заказчиком Требования: — Коммерческий опыт разработки на PHP и Laravel — Опыт работы с JavaScript, React и jQuery — Опыт работы с Git, Docker и Linux — Понимание базовых CI/CD-процессов — Опыт работы с MySQL и Redis — Умение разбираться в коде и аккуратно развивать уже работающие решения — Разговорный английский для периодических созвонов с заказчиком и участия в рабочих обсуждениях — Готовность к полностью удалённому формату и постоянному присутствию в Discord в течение рабочего дня Условия: — Полностью удаленная работа из любой точки мира — Возможна релокация в Черногорию — График: понедельник–пятница, 10:00–19:00 МСК — 28 календарных дней оплачиваемого отпуска — Квартальные бонусы по результатам работы — Корпоративный социальный пакет: страхование жизни, выплаты при важных жизненных событиях и дополнительная финансовая помощь в сложных ситуациях — Помощь коллег, обмен опытом, участие в технических решениях, геймифицированная мотивация и дружелюбная коммуникация

Location: New York, NY (HQ); Remote (Canada); Remote (US) Workplace: Hybrid ABOUT RAMP Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $275B in annualized spend flows in and out of 85,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome. The median Ramp customer saves 7.5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same. If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it. ABOUT THE ROLE Ramp’s Token Spend Management team helps finance and technical teams understand and manage what they spend across AI providers and subscriptions. We are building the third pillar https://ramp.com/blog/ramp-at-44-billion-the-third-pillar of finance. The product brings provider usage and billing information together so customers can see where costs come from, attribute spend, and act on it with greater confidence. We’re looking for a senior backend engineer to build the systems behind that experience. You’ll own substantial projects from design through production, turn data from different providers into dependable product experiences, and work with product, design, data, and engineering partners to make complex spend information useful to customers. You will be involved in key company initiatives such as inference accounting, and figuring out new and novel ways to help companies not just manage, but think about their AI Spend. WHAT YOU’LL DO - Design and build backend services and APIs that support AI spend visibility, attribution, insights, and controls - Build and improve integrations that ingest usage and billing information from supported providers - Taking the data from those integrations and converting it into helpful structures for external customers, and internal product consumers - Create reliable data models and processing workflows that make spend information accurate, traceable, and useful across the product - Own projects from technical design through launch, monitoring, and iteration - Improve the reliability, performance, and observability of systems as customer usage and provider coverage grow - Partner with product, design, data, and engineering teammates to turn customer needs into practical solutions - Raise the engineering bar through thoughtful design reviews, code reviews, and mentorship WHAT YOU’LL NEED - Experience designing, building, and operating production backend systems, including APIs, data models, and asynchronous workflows - Strong judgment about system design, data correctness, reliability, and when to keep a solution simple - A track record of independently owning complex projects and shipping high-quality software - Experience working with external data sources or integrations where data quality and changing interfaces matter - Comfort working through ambiguous product problems with cross-functional partners - Clear communication and a collaborative approach to technical decisions and feedback NICE TO HAVES - Experience with usage metering, billing, spend management, or financial data products - Experience integrating with AI providers or other third-party usage and billing APIs - Experience building attribution, alerts, limits, or other systems that help customers understand and manage spend BENEFITS AVAILABLE TO ALL FULL-TIME RAMP EMPLOYEES (GLOBAL) - Flexible PTO - Centralized home-office equipment ordering - Health and wellness stipend - Budget for intra-office travel - Weekly coffee stipend UNITED STATES - 100% medical, dental & vision insurance coverage for you, with partial coverage for dependents - One Medical annual membership - 401(k), including employer match on contributions made while employed by Ramp - Fertility HRA (up to $10,000 per year) - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay - Pet insurance - In-office perks: lunch, snacks, drinks, and more - Relocation expense coverage to NYC or SF (if needed) CANADA - Group medical, dental, and vision coverage through Sun Life - Life, AD&D, and disability coverage - Fertility drug coverage (up to $4,000 lifetime) - Group Retirement Plan with employer match (RRSP + DPSP) - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay, with additional time available at reduced pay - Employee Assistance Program and virtual care through Lumino Health UNITED KINGDOM - Private medical insurance through Freedom Elite - Virtual GP and at-home care via eMed x Livi - Workplace pension through Penfold, with salary sacrifice option - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay with additional time available at reduced pay REFERRAL INSTRUCTIONS If you are being referred for the role, please contact that person to apply on your behalf.   OTHER NOTICES Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.   Beware of recruiting scams: Ramp will only contact you through official @Ramp.com http://Ramp.com email addresses and will never ask for payment or sensitive personal information during the hiring process.   Ramp Applicant Privacy Notice https://ramp.com/legal/applicant-privacy-notice

Основные задачи Разработка и развитие backend-инфраструктуры на Elixir/OTP. Проектирование высоконагруженных, масштабируемых и отказоустойчивых систем.

Location: New York, NY (HQ); Remote (Canada); Remote (US) Workplace: Hybrid ABOUT RAMP Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $275B in annualized spend flows in and out of 85,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome. The median Ramp customer saves 7.5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same. If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it. ABOUT THE ROLE Getting paid is still one of the most manual parts of running a business. Finance teams chase invoices over email, match payments to invoices by hand in spreadsheets, and close the books late because cash data is scattered across banks, payment processors, and ERPs. Ramp's Accounts Receivable team is building the system that automates all of it, from the moment an invoice is sent to the moment cash is reconciled in the general ledger. We own the full receivables lifecycle: invoicing, collections, payments, cash application, and accounting sync. We're looking for a senior backend engineer to own core pieces of that system. The work sits where hard engineering problems meet real money: matching messy payment data to the right invoices, keeping ledgers correct to the cent, and syncing reliably with the accounting systems our customers depend on. You'll own projects end to end, from design through production, and work closely with product and design to turn complex finance workflows into software that just works. WHAT YOU’LL DO - Build the payment-matching systems that automatically apply incoming ACH, wire, card, and check payments to the right invoices, even when payment details are incomplete or inconsistent - Design accurate data models where every dollar is traceable from invoice to payment to general ledger - Build two-way integrations with ERPs like NetSuite and QuickBooks that stay consistent through retries, partial failures, and edits on either side - Build collections workflows that help businesses get paid faster without hurting their customer relationships - Own projects from problem definition and technical design through launch, monitoring, and iteration - Raise the engineering bar through design reviews, code reviews, and mentorship WHAT YOU’LL NEED - Product sense: you care about the customer problem, not just the ticket, and you push back when the spec is wrong - Experience designing and operating production backend systems, including APIs, data models, and asynchronous workflows - Strong system design judgment and the ability to balance speed, correctness, reliability, and simplicity - A track record of independently owning complex projects and shipping high-quality software - Strong communication skills and a collaborative approach to technical decisions NICE TO HAVES - Experience with invoicing, billing, payments, accounting, or other financial workflows - Experience building integrations that keep data consistent across systems - Experience improving reliability and operational visibility in a growing product BENEFITS AVAILABLE TO ALL FULL-TIME RAMP EMPLOYEES (GLOBAL) - Flexible PTO - Centralized home-office equipment ordering - Health and wellness stipend - Budget for intra-office travel - Weekly coffee stipend UNITED STATES - 100% medical, dental & vision insurance coverage for you, with partial coverage for dependents - One Medical annual membership - 401(k), including employer match on contributions made while employed by Ramp - Fertility HRA (up to $10,000 per year) - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay - Pet insurance - In-office perks: lunch, snacks, drinks, and more - Relocation expense coverage to NYC or SF (if needed) CANADA - Group medical, dental, and vision coverage through Sun Life - Life, AD&D, and disability coverage - Fertility drug coverage (up to $4,000 lifetime) - Group Retirement Plan with employer match (RRSP + DPSP) - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay, with additional time available at reduced pay - Employee Assistance Program and virtual care through Lumino Health UNITED KINGDOM - Private medical insurance through Freedom Elite - Virtual GP and at-home care via eMed x Livi - Workplace pension through Penfold, with salary sacrifice option - Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay with additional time available at reduced pay REFERRAL INSTRUCTIONS If you are being referred for the role, please contact that person to apply on your behalf.   OTHER NOTICES Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.   Beware of recruiting scams: Ramp will only contact you through official @Ramp.com http://Ramp.com email addresses and will never ask for payment or sensitive personal information during the hiring process.   Ramp Applicant Privacy Notice https://ramp.com/legal/applicant-privacy-notice

Location: Remote USA Workplace: remote ABOUT XSOLLA Xsolla is a global video game commerce company headquartered in Los Angeles. It helps developers from indie to AAA fund, distribute, market and monetize their games, and acts as merchant of record for 1,500+ developers worldwide. For more information, visit xsolla.com. The role We are hiring a Software Engineer, Web3 for Xsolla ZK , Xsolla 's Web3 ecosystem on a zkSync-based L2. It includes: smart wallets built on account abstraction; SDKs that game studios and partners use to bring players on-chain; infrastructure backend services for tokenizing in-game items and currencies; ecosystem dApps: a DEX , an NFT marketplace and an auction. This is a senior fullstack role: you work across backend, frontend and smart contracts. WHAT YOU WILL OWN Features end to end: backend, frontend and production The on-chain / off-chain architecture of your product: what lives in contracts, what lives in services, and how the two stay consistent. You make these decisions and justify them in writing Security and correctness of what you ship: signing flows, interactions with contracts that hold user assets, keys and secrets Production operation of your services, as part of the team's on-call rotation WHAT YOU WILL DO Build backend services in Go and TypeScript: chain indexing, transaction relaying, event processing, APIs for dApps and SDKs Build infrastructure backend services for tokenizing in-game items and currencies Build dApp frontends in React: wallet connection, transaction signing, on-chain state in the UI Integrate smart wallets into products: accounts, paymasters, bundlers Develop SDKs used by game studios and partners Monitor services and contracts in production and take part in on-call Review code Set up and maintain AI tooling in the repositories (Claude Code, Codex, Cursor: rules, context, harness) so the team uses it effectively Required Experience 5+ years of commercial software development, with senior-level production experience across backend and frontend dApps that you shipped to production and maintained Web3 libraries and wallets viem and wagmi in production: clients and transports, contract reads and writes with typed ABIs, event subscriptions, wagmi hooks and connectors, caching and invalidation of on-chain state How wallet signers work: EOAs, browser and embedded wallets, smart accounts; personal_sign (EIP-191) and typed data (EIP-712); the EIP-1193 provider; network switching Hands-on experience with smart wallets: UserOperations, gas sponsored via paymasters, signature validation for contract accounts (ERC-1271) Backend Go and TypeScript (Node.js) for production services Processing on-chain events: idempotency, reorg handling, retries Asynchronous messaging and event-driven design (Kafka, RabbitMQ or NATS ): delivery guarantees, ordering, reprocessing Relational databases (PostgreSQL) and caching (Redis) Designing REST and gRPC APIs: versioning, backward compatibility Frontend React and TypeScript: rendering model, state management, performance Web security fundamentals: XSS , CSRF , CSP , safe handling of signatures and keys in the browser Smart contracts Reading and understanding Solidity contracts and the EVM (storage, gas, call semantics, proxy upgrade patterns, access control) well enough to integrate with them safely and review changes Common contract vulnerability classes (reentrancy, front-running / MEV , oracle manipulation, signature replay) and how they affect the off-chain side Operations Containers and orchestration (Docker, Kubernetes) at the level of deploying and debugging your own services Observability (we use Datadog; experience with Prometheus, Grafana, ELK / Graylog or OpenTelemetry also counts): metrics, logs, tracing and alerting for services and contracts; diagnosing incidents in production Engineering practices Testing: unit, integration, E2E Git, CI/CD (GitLab CI or similar) AI-assisted engineering Daily hands-on use of AI coding tools (Claude Code, Codex, Cursor) for development and review, including configuring them for a repository English Spoken English at B2 level or higher Nice to have zkSync / ZK Stack and the specifics of the zk -rollup stack Designing, writing and testing smart contracts in Solidity with Foundry; deploying and upgrading them safely Building ERC-4337 infrastructure yourself (bundlers, paymasters); EIP-6963, EIP-5792 DeFi: DEX and AMM mechanics NFTs and marketplaces: ERC-721, ERC-1155, auction mechanics L2 infrastructure: running nodes, indexers, bridges Designing SDKs for external developers Gaming domain experience HOW WE WORK Decisions in writing. Significant technical decisions are written up as an RFC or ADR that lays out the options and trade-offs. We discuss the document, not a blank whiteboard. AI is part of everyday engineering. We use AI coding tools for development and review, and we treat configuring them for a codebase as real engineering work. HOW WE HIRE Intro call. Your background, your motivation and the role. Technical interview. Built directly on the What you will own and Required sections above. We won't ask about anything this posting doesn't promise. Bar raiser. An engineer from outside the hiring team checks that you raise the overall engineering bar. THE TEAM You will work alongside product managers, designers, smart contract, backend and frontend engineers, QA and DevOps. 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 and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, 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. EMPLOYMENT DETAILS Location: Remote (worldwide) Employment Type: Full-time Schedule: 10:00–19:00 (flexible) Contract: Employment agreement (entity or EOR arranged per candidate location) EQUAL EMPLOYMENT STATEMENT Xsolla is dedicated to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, language, sexual orientation, national origin, genetics, political beliefs, disability, age, marital status, social background or other characteristics. We are committed to compliance with all fair employment practices regarding citizenship and immigration status. CONTACT If you have questions regarding our hiring practices, please contact careers@xsolla.com. For more vacancies, visit xsolla.com/careers.