Your mission
At 1inch, our engineering needs evolve rapidly. We are constantly seeking exceptional Web3 and smart contract developers to join our mission.
We look for engineers with a high-agency, "Get Stuff Done" mindset and an unrelenting passion for decentralised innovation.
As part of our engineering ecosystem, you will contribute to designing, developing, and optimising the smart contracts and underlying infrastructure powering 1inch. We value sophisticated problem-solvers who can navigate the lightning-fast shifts of the crypto landscape while executing securely at scale. Working alongside our product leads and world-class engineers, your commitment to open-source excellence will keep 1inch at the absolute cutting edge of DeFi.
By applying to this talent pool, you will be fast-tracked for consideration the moment a new headcount opens in our global team. We welcome applications across all career stages—from highly capable developers early in their Web3 journey to seasoned principal architects.
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
