Senior Typescript Engineer

Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 70 million transactions across the 300+ dApps we've served, we're powering the future of onchain economies.

The Role – Build the Protocol Powering the Future of Web3

At the frontier of innovation, our Modular Execution Environment (MEE) team is reimagining the way smart accounts and cross-chain transactions work, using novel primitives like Supertransactions, orchestration, intent-based bridges, and more.

We’re hiring a Senior TypeScript Engineer to build the SDK infrastructure that connects all of this powerful tech to the developers building the future of Web3.

What You Will Be Doing:

• Design, build, and maintain TypeScript-based SDKs and libraries that abstract complex blockchain and infrastructure logic into accessible developer tools.

• Ensure the SDK supports integration across major frontend frameworks and backend environments with high reliability and performance.

• Collaborate with smart contract and backend engineering teams to ensure seamless interoperability with on-chain and off-chain components.

• Monitor and optimize SDK performance using Node.js, focusing on efficiency, scalability, and low latency.

• Deliver and write well-documented guides and integration examples for the features you and the team would be building.

• Promote an open-source-first culture by maintaining contribution guidelines, reviewing external PRs, and supporting the wider developer community.

• Implement end-to-end tests for ecosystem repository that deploy infrastructure locally and validate functionality using the SDK

Requirements:

• 5+ years of experience as a full stack Typescript application and/or tooling developer

• Hands-on experience building SDKs, libraries, or tools for developer ecosystems, ideally open source.

• Strong understanding of the EVM ecosystem, JSON RPC, and how to interact with blockchain nodes and wallets.

• Familiarity with the libraries viem, ethers.js, wagmi

• Ability to write clean, modular code and contribute to technical documentation and developer onboarding materials.

• Excellent communication and cross-functional collaboration skills.

Nice-to-Have:

• Experience working on decentralized protocols or distributed infrastructure.

• Familiarity with cross-chain communication, storage proofs, or intent-based bridges.

• Open-source contributions to blockchain or Web3 developer tooling.

• Exposure to backend systems like microservices, indexers, or pub/sub architectures.

• Comfort with Rust, Go, or blockchain networking concepts.

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.

• Generous Vacation Policy: 25 days vacation per year plus public holidays.

• Competitive Salary: With regular performance reviews.

• Token Allocation: Be rewarded with tokens as part of our compensation package.

• Growth Opportunities: Be part of an exciting new project with significant career growth potential.

• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.

• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a diverse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.