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Location: San Francisco; New York Workplace: Hybrid About Alchemy Alchemy is the Web3 infrastructure and developer platform that powers millions of users and the world’s most innovative blockchain applications. From enabling $1+ trillion in financial transactions worldwide to scaling L2s and enabling DeFi, Alchemy provides the infrastructure and tools developers need to build reliable, scalable, and accessible experiences. Trusted by companies like JPMorgan, Stripe, Visa, Franklin Templeton, Nike, and backed by a16z, Coatue, Silver Lake, Lightspeed, and Stanford University, Alchemy is building the foundational layer for a decentralized and AI-enabled Web3 ecosystem. For more information, visit alchemy.com http://alchemy.com.   About the Role A once-in-a-generation shift is underway. Global banks, fintechs, and TradFi leaders: JPMorgan, Visa, PayPal, and more, are moving beyond pilots to launch real products on crypto rails. At the same time, the most sophisticated Web3 teams are scaling faster than ever, building the infrastructure for an entirely new financial system. Alchemy sits at the center of both worlds. The trusted infrastructure powering billions of transactions for the builders shaping the future of finance. As a Commercial AE at Alchemy, you will be pushing the entire blockchain industry forward by helping developers and companies accelerate their product development on our infrastructure. You will be responsible for owning the entire sales process and have the opportunity to partner with teammates across the company, including leadership and our founders. This opportunity offers immense growth and learning opportunities as we enter a new and exciting phase of the company!   What You’ll Do - Building and owning the entire sales process, including negotiating and closing contracts, client retention, renewals, upsells and client satisfaction - Engaging with potential customers, understanding their needs, and explaining how the product solves their needs - Reaching out to new leads via various communication channels and getting them excited for an introductory call - Educating cryptocurrency companies about blockchain nodes and how to troubleshoot their infrastructure issues (We have plenty of resources to bring you up to speed) - Tracking, analyzing, and finding ways to improve campaigns and the sales process - Collaborate across our internal business and technology teams to drive the desired business outcomes for our customers - Refine and establish processes to support our business’s evolving needs - Demonstrated ability to develop long-term, trustworthy strategic relationships with senior level executives and technical individuals - Create & articulate compelling value propositions - Own, manage, and report using a CRM: ensure the system is up to date and that all relevant metrics are input - Provide customer feedback to the product and engineering teams and inform product development - Work with support and communicate with customers both pre and post-sales - Maintain a healthy sales pipeline - Respond and communicate quickly with customers - Ensure customer satisfaction   What we’re looking for - Ability to be in office in SF or NYC 3x a week - 4+ years of quota-carrying experience in a client-facing Account Executive role selling SaaS, PaaS, or IaaS offerings to Enterprises and C-level stakeholders - Knowledge and passion for the crypto/blockchain industry - Self-starter attitude and the ability to execute new ideas with autonomy - Strong desire to work in sales at an early-stage startup - Demonstrated success in identifying, developing, negotiating, and closing large-scale technology projects to complex enterprise accounts - Experience driving technology adoption and creating long term transformational account strategies - Ability to operate independently and proactively in an effort to source and progress new business - Proficiency using CRM software, forecasting, and opportunity management - Excellent listening, verbal and written communication skills - Capable of understanding of customer pain points, requirements and correlating potential business to value that can be provided by technical services - Experience managing numerous requests and time demands concurrently   Benefits and Perks 🏥 Medical, Dental, & Vision 💪 Gym Reimbursement 🖥️ Home Office Build-out Budget 🥙 In-Office Group Meals 🚅 Commuter Benefits 🌴 Flexible Time Off 🧘‍♂️ Wellbeing & Mental Health Perks 🧠 Learning & Development Stipend 🌎 Company Sponsored Conferences & Events 💸 HSA and FSA Plans 🧬 Fertility Benefits Alchemy is committed to offering competitive compensation, including base salary as well as equity. Additionally, Alchemy offers comprehensive medical, dental, and vision coverage, as well as other benefits such as 401k and unlimited flexible time off.

Location: Singapore, Singapore OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa. Who We Are OKX is one of the world's leading crypto platforms — a regulated exchange, a self-custody wallet, and a growing ecosystem of decentralized applications used by millions globally. We move fast, ship constantly, and operate across trading, DeFi, payments, and social products — each with distinct users and design challenges. Our design organization is in the middle of a meaningful transformation: raising craft standards, building tighter brand-to-product coherence, and embedding AI into how we work. We're backed by our core principles — We Before Me, Do the Right Thing, and Get Things Done — and we take those seriously in how we hire, build, and ship. About the Opportunity We're looking for a Senior Visual/UI Designer to join the Visual System Team — the team responsible for how OKX looks and feels across every product surface (Mobile + Web). You'll work at the intersection of brand expression and product design, crafting the visual layer that makes OKX products feel distinctive, coherent, and trusted. This isn't a role where you receive a finalized wireframe and skin it. You'll be involved early — shaping how features are visually conceived, how brand moments are integrated into product flows, and how visual systems scale across an ecosystem of products used by millions. You'll work within OKX's Visual Systems infrastructure alongside the Design System and Content System teams, contributing to scalable visual frameworks — illustration guidelines, motion principles, iconography standards, and brand-in-product patterns — that raise quality across the entire product. What You’ll Be Doing Design product visual experiences. Create high-quality visual and UI design for OKX products — spanning trading, wallet, payments, and social features. Own the visual execution of key product surfaces, from concept through to pixel-perfect delivery. Balance beauty with clarity in a domain where trust and usability are non-negotiable. Contribute to visual systems. Work within and contribute to OKX's visual systems — shared illustration styles, motion tokens, color systems, iconography, and layout patterns. Your work should strengthen the system, not create one-off exceptions. Think in terms of reusable, scalable assets, not just deliverables. Use AI tools in your design workflow. Actively integrate AI into your daily practice — using generative tools for ideation, exploration, variation, and asset production. You're expected to experiment with AI-assisted workflows and bring what works back to the team. This is a core part of how we work, not an optional extra. Bridge brand and product. Translate brand direction into in-product visual experiences. Work with the Brand Design team to ensure that visual identity is consistent from marketing to core product — same palette, same sensibility, same quality bar. Collaborate cross-functionally. Partner with product designers, engineers, and product managers to ensure visual design decisions are grounded in user needs and technically feasible. Participate in design reviews, give and receive critique constructively, and communicate your rationale clearly. Pitch and present. Propose creative concepts to team leads and stakeholders. Articulate the reasoning behind visual choices — not just what you designed, but why it's the right solution for the user and the brand. What We Look For In You 4–6 years of experience in visual design or UI design, with a portfolio that demonstrates strong craft, attention to detail, and modern design sensibility across digital products. Mobile-first experience is essential. Fluency with AI design tools — you actively use tools like Midjourney, DALL·E, Figma AI features, or similar generative tools in your design workflow for ideation, exploration, and production. You don't just know about them; you use them to work faster and think wider. Strong visual craft — typography, color, composition, layout, and a keen eye for detail. You deliver pixel-perfect work and care about the micro-interactions and polish that separate good from great. Experience contributing to or working within design systems — you understand tokens, components, and how individual design decisions connect to a larger visual language. Proficiency in Figma and prototyping tools. Ability to produce high-fidelity prototypes that communicate motion and interaction intent. Solid understanding of human-centered design principles and how visual design serves usability, trust, and emotional connection — not just aesthetics. Clear communication skills — you can articulate design rationale, present to stakeholders, receive critique gracefully, and collaborate with non-designers. Nice to Haves Experience designing for fintech, crypto, or trading platforms — you understand the visual language of trust, precision, and data density. Illustration or motion skills — you can create original visual assets, not just compose them. Experience working with globally distributed teams across offices and time zones. Familiarity with how visual design integrates with front-end implementation — you understand CSS, design tokens, and component architecture well enough to collaborate effectively with engineers. Perks & Benefits Competitive total compensation package L&D programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! #LI-EW1 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: Remote, US; Remote, EU; Remote, Switzerland Workplace: remote About us   Aave Labs began with a simple question: how do we make financial services like borrowing, saving, and earning more accessible globally?   We built the Aave Protocol, now the world’s largest and most trusted onchain lending market, connecting decentralized finance with individuals, traditional finance, and fintech.   Today, we build trusted, high-quality products that expand access to lending, credit, and savings globally   Our culture   We build trusted products that help people access and discover economic opportunities.   We hold a high bar for quality and craftsmanship. No detail is too small. Trust depends on it.   We’re a global team building products people can actually use, turning complex technology into something simple and reliable.   We stay aligned, move quickly, and think long term, while keeping teams lean and focused on impact.   About the role:   Aave Labs is looking for a Staff smart contract engineer to innovate and build upon the Aave protocol and GHO stablecoin. You should have a strong passion for web3 technology and a deep understanding of smart contract development. In this role, you will be responsible for designing, implementing, and deploying smart contracts on Ethereum and other EVM based networks & work closely with the Aave team to develop and maintain the protocol. How you can make an impact: Designing, implementing, and testing secure Solidity-based smart contracts and decentralised applications Participating in the development of protocol-level infrastructure and tools Collaborating with cross-functional teams to define, design, and ship new features and functionality Responding to security vulnerabilities, simulating the scenario, and evaluating a strategy and response Debugging and troubleshooting issues that arise during the development process Reviewing code written by other engineers to ensure it meets the required standards and specifications with a focus on security Staying up to date with developments in the Ethereum ecosystem and incorporating new technologies as appropriate Providing technical guidance, support, and mentoring to other engineers as needed Let’s connect if you have: You are someone who builds, innovates, and ships features with the highest standards of solidity and security You have experience working with DeFi protocols and a deep understanding of smart contracts and the EVM You research constantly and keep up with the latest hacks, tooling, and security practises Are passionate about DeFi and enjoy working in web3 and the bleeding edge of technology You have shipped production DeFi vaults end to end - share and NAV accounting, strategy allocation, deposit and redemption flows. Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!   Equal opportunities statement:   Aave Labs celebrates diversity and views each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, disability, sexual orientation or even the wallet you use, we welcome you at Aave Labs. As an equal opportunities employer, we take accountability and believe in everyone's potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.                   #LI-MG1

Location: US / Remote Workplace: remote Why Us? CertiK is a pioneer in blockchain security, leveraging best-in-class AI technology to protect and monitor blockchain protocols and smart contracts. Founded in 2018 by professors from Yale University and Columbia University, CertiK’s mission is to secure the web3 world. CertiK applies cutting-edge innovations from academia to enterprise, enabling mission-critical applications to scale with safety and correctness. About the Role The primary responsibility of this role is for CertiK’s security-related services. Intersecting cybersecurity and blockchain, CertiK’s security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contracts, penetration testing, and more. We are looking to hire someone with a passion for application security and penetration testing. This is a fun and challenging full-time position. If you are excited about hacking, threat modeling, scanning, auditing, designing, and enhancing the security of applications across the board then you will thrive in this role. While you work with clients, we will also provide you with plenty of opportunities to get involved with research and development efforts to help us raise the standards of blockchain security. Responsibilities Perform security assessments on web, mobile, thick client applications, and browser extensions Conduct external and internal network penetration tests Perform security source code reviews Perform cloud security reviews Develop comprehensive pentest reports for both technical and non-technical audiences Research and develop innovative techniques, tools, and methodologies for pentesting applications in the blockchain space Contribute to the community by developing tools, presentations, and blog posts Requirements Passionate about cryptocurrency, DeFi, and blockchain, with a willingness to learn Web3 technologies such as smart contracts Minimum of 4 years of experience in application security and penetration testing Experienced in source code review for different languages, with a strong understanding of JavaScript and TypeScript Experienced in mobile application penetration testing Familiar with cloud platforms and their security risks, such as AWS, Azure, and GCP Experience in programming with scripting languages such as Python and Bash Solid understanding of cryptography BS/MS/PhD in Computer Science or Information Security Strong spoken and written communication skills Bonus Points Experienced in pentesting Web3 applications such as crypto exchanges, wallets, Dapps, and key custodian solutions Experienced in smart contract security audits Familiar with browser extension architecture and security risks Actively participate in the blockchain security community OSCP, OSWE, OSCE, GWAPT, or comparable certification Participated in bug bounty programs and audit contests Published security-related blog posts and spoken at security conferences and/or local meetups About the Company One of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz. Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Coinbase Ventures, Binance, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors. Compensation Target annual base salary for this role performed in the US is $100,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. #LI-Remote #blockchain #startups #hiring CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: US / Remote Workplace: remote About the Role: We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you. Responsibilities Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities. Work closely with external blockchain teams to enhance the security of their products by providing expert security consultation and implementing remediation strategies. Conduct independent security research, explore new attack vectors, and deliver actionable insights. Design, develop, and maintain internal security tools and frameworks to strengthen our security services. Continuously improve internal processes, methodologies, and service offerings while ensuring high client satisfaction and long-term partnerships. Requirements Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security. Minimum 3 years of professional experience as a Software Engineer, Security Engineer, or in a related role. At least 2 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.) Strong expertise in threat modeling, risk assessment, and security analysis. Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc. Passion for Cryptocurrency, DeFi, and Blockchain technologies. Preferred Qualifications Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity. Demonstrated experience conducting audits and collaborating with leading Web3 protocols. Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests. About the Company CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance. Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors. About You You’re a self-starter. You believe in tackling the most important problems, even if they are the most difficult problems. You’re comfortable with the unknown and understand that startup life means that you’re going to be wearing multiple hats. And that’s what motivates you. You’re accountable and obsessed with improvement, both in yourself and in others. You’re up to the challenge of building a world-class company that aims to be the infrastructure for more secure software for all. Compensation Target annual salary for this role performed in the US is $102,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: Remote - Worldwide About us OpenZeppelin is the security standard onchain finance is built on. Founded in 2015, our mission is to accelerate the world's transition to an open financial system, built on open standards and secured by rigorous research. Our open-source Contract Libraries have facilitated over $35 trillion in onchain value and are used by 10 of the top 10 tokenized money market funds and 9 of the top 10 stablecoins by market cap. We combine AI-native security tooling with deep research and a decade of audit expertise to support leading institutions and crypto-native teams shaping the next generation of digital assets like DTCC, Fidelity, Coinbase, Uniswap, Aave, the Ethereum Foundation, and many more across the full secure development lifecycle. Please note: Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information. The Security Services Team OpenZeppelin's Security Services team is responsible for the security of the world's leading web3 protocols and top financial institutions building onchain. Our researchers partner with client teams across the full lifecycle of a protocol: working on architecture and design before any code is written, co-creating novel mechanisms and primitives with engineering teams, conducting deep audits of pre-launch codebases, and providing continuous coverage as production systems evolve. Our clients range from emerging projects shipping their first contracts to global financial institutions running production onchain systems at scale. What you'll be doing Review smart contracts for top decentralized applications, blockchain infrastructure and financial institutions before they launch. Find vulnerabilities, prioritize them, and present findings to the client. Drive audits independently from start to finish, with AI as your primary collaborator. When useful, partner with another researcher to attack the code together and pressure-test findings. Partner with client teams during the design phase of new protocols, analyzing architecture, trust assumptions, and operational constraints before any code is written (Design Reviews, Applied Research engagements). Use AI efficiently throughout the audit process, and build skills, agents, and workflows that compound across the team. Conduct open-ended research into cutting-edge blockchain technologies, vulnerability classes, and emerging attack vectors, and contribute findings back to OpenZeppelin's internal knowledge base and to the broader ecosystem. You have Hands-on and practical experience in one or more of the following: software development, cybersecurity, applied mathematics, distributed systems, cryptography, cryptoeconomics or game theory, or DeFi mechanisms. Experience designing and developing smart contracts, not only auditing them. Strong working knowledge of Solidity and the broader Ethereum / EVM ecosystem (common libraries, frameworks, smart contract patterns). Modern AI tooling is central to how you work, not a novelty. You use it daily to expand audit coverage, reason about complex systems, and produce high-quality outputs faster. You evaluate AI-generated code with a critical eye. Comfort building and extending your own tooling (skills, agents, prompts, scripts, or full workflows) that the rest of the team can adopt and build on. An advanced English level and strong communication skills (oral and written). Nice to have Experience with non-EVM ecosystems and languages, such as Canton, Move (Sui, Aptos), Golang (Cosmos SDK), Cairo (Starknet), Rust-based blockchains (Solana, Stellar), or ZK circuits and cryptography-heavy systems. Experience with risk assessment work in the crypto industry (smart contract risk assessment, threat modeling). Working hand-in-hand with protocol teams on co-creative engagements, helping design, specify, and implement smart contracts alongside the research. Web2 security expertise (penetration testing, web application security, infrastructure security, or appsec). Experience with formal verification, invariant testing, or advanced fuzzing tools (Echidna, Foundry, Halmos, Certora). A track record in audit contests (Code4rena, Sherlock, Cantina) or bug bounty platforms (Immunefi, HackerOne). Public security research output, such as published findings, blog posts, conference talks, or contributions to open-source security tooling. Logistics Our interview process takes place on Google Meet and tends to consist of the following stages: Recruiter call (30 minutes) Manager interview (60 minutes) Technical interview (60 minutes) Paid work trial (paid code review assessment) Reference checks Please let us know if you require any accommodations for the interview process, and we’ll do our best to provide assistance. Benefits Meet your teammates at company gatherings around the world 😎 Enjoy the flexibility of fully remote work 🌎 Take the time you need with flexible time off 🏝 Grow your family with 8 weeks of paid leave for primary caregivers, 4 weeks for secondary caregivers, and a one-time $3,600 baby bonus 💙 Build your ideal home office with up to $500 in equipment support 🪑 Stay covered with medical insurance 🏥 Keep growing with learning and development opportunities 🧠 Get a monthly stipend for your preferred co-working space 💻 At OpenZeppelin , we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value. Come join us! Use of AI as part of the recruiting process As part of OpenZeppelin’s recruitment process, we may use automated tools, including artificial intelligence, to assist in reviewing applications and assessing candidate qualifications. These tools are used to support our People team by identifying relevant skills and experience, and are not used to make decisions solely by automated means. All hiring decisions involve human review. Any personal data provided as part of your application will be processed in accordance with OpenZeppelin’s Data Privacy Notice . If you have questions about this recruitment process or would like to request human review of your application, please contact us at talent@openzeppelin.com.