Software Engineer, Blockchain

Overview

What You'll Do

• Contribute to the design and optimisation of scalable, secure, and high-performance blockchain architectures
• Develop, integrate, test, and maintain smart contracts and decentralised protocol components
• Conduct technical research and support proof-of-concept initiatives for new blockchain and DeFi features
• Contribute to cross-chain interoperability solutions, including bridging and atomic swap mechanisms
• Improve execution efficiency and optimise smart contract logic for gas consumption and performance
• Collaborate with engineering and security teams to identify vulnerabilities and strengthen protocol reliability
• Participate in code reviews, testing, CI/CD workflows, and engineering best practices
• Work closely with cross-functional teams to support successful product delivery and continuous improvement

Who You Are

• Professional software engineering experience with a strong focus on blockchain development and decentralised systems
• Strong understanding of Ethereum, EVM-based ecosystems, smart contracts, and decentralised application architecture
• Hands-on experience developing with Solidity, Yul, Rust, and TypeScript
• Experience working with Layer 2 scaling solutions, cross-chain infrastructure, or blockchain interoperability protocols
• Strong understanding of smart contract security principles, testing methodologies, and vulnerability mitigation
• Experience using modern blockchain development frameworks such as Foundry or Hardhat
• Interest in or understanding of DeFi concepts including AMMs, liquidity pools, routing, or oracle integrations
• Strong problem-solving skills and ability to work effectively in fast-paced engineering environments
• Nice to haves
• Experience contributing to open-source blockchain or Web3 projects
• Familiarity with zero-knowledge technologies or rollup architectures
• Experience building distributed systems or low-latency infrastructure
• Understanding of blockchain infrastructure automation and deployment tooling
• Experience working in high-growth startup or scale-up environments

What We Can Offer

• Work alongside a globally distributed and highly collaborative team that has helped shape the history of DeFi and Web3 innovation
• Join a fast-paced environment where ownership, initiative, and fresh ideas are encouraged and supported
• Competitive compensation package, including a discretionary bonus scheme aligned with your impact and contribution
• Full equipment support for your remote workspace setup, plus a dedicated learning and development budget
• Flexible remote-first culture with an unlimited paid time off policy to support work-life balance
• *1inch is an equal opportunity employer.
• We are committed to evaluating all candidates on the basis of their skills, experience, and potential — regardless of race, ethnicity, nationality, gender, age, religion, disability, or any other characteristic.
• We believe diverse teams build better products, and we welcome applications from all backgrounds.*
• We use AI-assisted tools to help us review applications efficiently.
• These tools support our recruitment team but do not make decisions on our behalf — every application is reviewed by a person before any outcome is determined.
• No offer or rejection is made solely on the basis of automated processing.
• For full details on how we use these tools and your rights in relation to them, please see our Applicant and Candidate Privacy Notice.