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.
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 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
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
