Decentralised Messaging Engineer - Rust

Nethermind

🌍 ARE YOU THE ONE? We’re always looking for exceptional people to join our team at Nethermind. Whether you're an engineer, Web3 researcher, AI practitioner, product builder, or a community builder—this is your chance to work alongside some of the greatest minds in the blockchain ecosystem and shape the future of Web3 with us. If you're passionate about open-source collaboration, decentralized tech, or building at the intersection of Web3 and AI — we’d love to hear from you. This is an open application: if you're excited about what we do at Nethermind and believe you can contribute, we want to hear from you. WHAT YOU MIGHT BRING: * A background in engineering, computer science, mathematics, cryptography, finance, AI/ML, or other relevant technical or research-focused disciplines. * Hands-on experience building or supporting products, research, or infrastructure in Web3, DeFi, or Layer 1/L2 ecosystems. * Experience in one or more of the following research areas: protocol design, ZK systems, applied cryptography, DeFi, MEV, or governance mechanisms. * Strong written and verbal communication skills, and an ability to collaborate across distributed, async teams. * A proactive mindset and ability to thrive in ambiguity, taking ownership and driving impact with minimal direction. * Passion for Ethereum, open-source software, and the long-term vision of decentralized networks. BONUS IF YOU HAVE: * Experience contributing to open-source projects (especially in Ethereum or related ecosystems). * Familiarity with Ethereum protocol internals, smart contract security, rollups, or cryptoeconomic design. * Understanding of decentralized governance, tokenomics, or on-chain data analysis. * Product thinking, systems design, or experience in technical project management. * AI/ML research or development experience, especially as applied in the crypto space. * Participation in hackathons, research competitions, or open-source projects within the Web3 or AI ecosystems. WHY JOIN NETHERMIND? * Work on high-impact projects with top engineers, researchers, and builders in the Ethereum ecosystem. * Be part of a remote-first, globally distributed team that values autonomy, async work, and shared purpose. * Shape the future of Ethereum infrastructure, cryptography, zk systems, DeFi, and more. * A culture of transparency, experimentation, and deep learning. * Competitive compensation, flexible work structures, and opportunities for growth. APPLY NOW If you're excited about what we do at Nethermind and see yourself contributing to our mission—we’d love to hear from you. 📨 Send us your CV and a short cover letter explaining your background, your interests in Web3 or related domains, and how you’d like to make an impact.   Note: Only candidates selected for further consideration will be contacted. Important Notice for Candidates Recruitment scams are becoming increasingly common. Please keep the following guidelines in mind when applying for roles at Nethermind. Where We May Contact You Our Recruitment Team will only contact candidates using official company email addresses ending in @nethermind.io. Any communication from our Team will always come from an official company domain — never from Gmail, Yahoo, Hotmail, Outlook, or any other free email service. You can also find us only through our official Nethermind accounts on: * LinkedIn * X / Twitter * GitHub Please note that we do not use Facebook for recruitment outreach. How We Conduct Interviews All interview scheduling and recruitment communication is managed exclusively through Ashby, our official hiring platform. You may receive scheduling emails sent via Ashby on behalf of our Recruitment Team. Before clicking any links, please make sure the message originates from a legitimate and trusted Ashby source. We do not conduct interviews through: * WhatsApp * Telegram * Wire * Google Hangouts * Signal * Discord DMs * or any other unofficial messaging platforms What We Will Never Do Nethermind will never: * Ask for your banking details, passwords, seed phrases, and wallet credentials at any stage of the hiring process * Request payments, deposits, or fees related to recruitment or interviews * Contact you through unofficial email addresses or suspicious messaging accounts * Ask you to install unknown software or share access to your devices If you ever receive suspicious communication claiming to represent Nethermind, please treat it with caution and verify the source carefully before responding.

Cardano Foundation

YOUR OPPORTUNITY: Make a real difference in the blockchain industry! Build the change you want to see. Veridian is building the infrastructure layer for digital identity. Born as a Cardano Foundation initiative, our technology already powers credential issuance and verification across regulated industries. We are looking for an SDET to join a small, high impact team. You will shape quality from the ground up across everything we ship: the Veridian Wallet, enterprise credential management applications, cloud based backend services and open source protocol libraries. Our stack builds on the open protocols KERI and ACDC using components such as KERIA (Python), Signify-TS and Signify-Java. You will wear multiple hats, in a highly complex domain. Some weeks that means writing test automation frameworks. Other weeks it means jumping into CI/CD pipelines, debugging a flaky mobile build, reviewing security sensitive code or helping define acceptance criteria for a feature that did not exist last month. In this role you will: * Design and implement end to end, integration and API test automation frameworks. * Build CI/CD quality gates that catch regressions before they merge. * Obsess over edge cases: revoked keys, out of order events, race conditions. * Test across Veridian’s full product stack: wallet, services, libraries.  * Collaborate with frontend and backend engineers to improve testability. * Own test environments, test data management and reporting. YOUR STORY: * 3+ years in an SDET or test automation role. * Strong hands-on experience developing production grade automation frameworks in languages like TypeScript and Java. * Familiar with mobile testing (Appium, Maestro or similar). * Background in security sensitive systems (key management, cryptographic operations). * Exposure to fault tolerant domains (out of order messaging, connectivity failures). * Comfort with CI/CD pipelines (GitHub Actions preferred), containers (Docker) and lifecycle tooling (Git, Jira/Confluence). * Self motivated, independent and thorough in finding what others miss. YOUR IMPACT: * Ensure the reliability and security of identity systems used by governments and enterprises. * Build lean, automated pipelines that let a small team ship fast without compromising quality. * Define quality standards that become the team's standards. NICE TO HAVE: * Fluency with AI tools to write tests more efficiently, generate edge cases and expand coverage. * Industry experience in cryptography and key management. * Familiarity with decentralized identity protocols and systems. * Performance and load testing experience. * Experience in a startup environment where speed, ownership and adaptability matter more than process.

Improbable

At Improbable, we build and scale ambitious AI and Web3 ventures shaping the next generation of the internet. We’re hiring for a venture building a next-generation blockchain for real-time, large-scale applications, designed to overcome the speed and cost limitations of traditional blockchain infrastructure. The technology is fast, cost-efficient and fully EVM-compatible, enabling developers, creators and communities to build immersive products with greater ownership and interoperability. About the role We’re hiring a Product Marketing Manager to shape how a decentralised exchange (DEX) shows up in the world. This is a hands-on role for someone who understands onchain trading and its audiences deeply, from alpha groups and trading communities to professional traders, and can turn that understanding into messaging that resonates with them. You’ll work closely with Product and the Head of Marketing to shape positioning, growth and how the product is talked about in the market. What you’ll be doing You’ll shape the positioning, launches and market story that help the product stand out. * Own positioning and messaging across core audiences, including alpha groups, trading communities and professional traders * Craft a clear differentiation story grounded in the product’s strengths as well as simplify a technical product narrative so it makes sense to both experienced traders and people coming onchain for the first time * Lead go-to-market activity for launches, product capabilities and ecosystem features, from brief through to post-launch measurement * Act as the team’s expert on the onchain derivatives and trading landscape, including trends, trader insights and market takeaways * Turn market intelligence into positioning, product recommendations and growth tactics * Support adoption and retention through tactics such as community leaderboards, yield-based rebates and referral mechanics What we’re looking for * Solid experience in product marketing or a related role, including meaningful hands-on experience in Web3, consumer fintech or trading products * Experience with retail trading products or exchanges (DEX or CEX), and a genuine understanding of how order books and derivatives or perps work * A track record of leading product launches end to end, with measurable results * Proven ability to own positioning and messaging for a product or protocol and execute go-to-market campaigns across channels * Strong grasp of crypto-native culture and communities, including X, Discord and Web3 platforms * Highly analytical, comfortable defining and tracking growth, retention and adoption metrics * Comfortable operating hands-on in a fast-moving environment with significant ownership Apply if you want to help shape how a decentralised exchange is positioned, launched and adopted.         Improbable Candidate Privacy Policy