Blockchain Engineer (Smart Contracts) – Pre-Qualified Talent Network

Your mission

This is not an active vacancy. Instead, we're building a network of exceptional Blockchain Engineers (Smart Contracts) who have successfully completed our interview process and are ready to join 1inch when new positions become available.

Our engineering needs evolve rapidly, and we're always looking to connect with exceptional smart contract developers who want to help shape the future of DeFi. We look for engineers with a high-agency, 'Get Stuff Done' mindset and an unrelenting passion for decentralised innovation.

We also embrace AI as a force multiplier for engineering, and value developers who thoughtfully leverage AI-powered tools to accelerate development, improve code quality, and solve complex technical challenges.

Successful candidates who pass the interview process will join our Pre-Qualified Talent Network. This means that when a suitable position becomes available, you'll be among the first people we consider, allowing us to move quickly through the final hiring stages and, where appropriate, straight to an offer.

• 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

• Professional experience building and operating backend systems in production environments
• Strong proficiency in Golang, Typescript, or another backend/systems programming language with practical concurrency and performance knowledge
• Solid understanding of system design fundamentals including services, data flows, reliability, and maintainability
• Familiarity with blockchain platforms, smart contracts, transaction handling, and on-chain integrations
• Experience working with containerised services and modern deployment practices
• Strong problem-solving skills and ability to work effectively in fast-paced engineering environments
• Ability to balance technical quality, scalability, and operational reliability
• At senior level, experience owning projects end-to-end and contributing to architectural decision-making

• 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