1inch builds some of the most-used interfaces in DeFi — from our flagship swap aggregator to advanced trading tools, portfolio views and developer-facing pages. Our frontend engineers own these experiences end-to-end, ensuring they are fast, reliable and intuitive for millions of users across multiple chains.
We are building a talent pool of frontend engineers at mid and senior level. This is an evergreen posting: there is no single open role tied to it, but when approved positions arise you will already be in our pipeline.
Design, develop, and maintain frontend applications and shared UI components using Angular, RxJS, and TypeScript
Build responsive, scalable, and high-performance web applications with strong usability and security standards
Contribute to frontend architecture decisions, testing strategies, CI/CD workflows, and development standards
Improve frontend reliability, maintainability, accessibility, and browser performance optimisation
Collaborate closely with product, design, backend, and blockchain engineering teams to deliver seamless user experiences
Participate in code reviews, testing workflows, and continuous improvement of frontend engineering practices
Monitor frontend application performance and contribute to observability and debugging processes
At senior level, lead architectural initiatives, mentor engineers, and drive frontend engineering standards across teams
Strong proficiency with Angular, RxJS, and TypeScript
Solid understanding of modern web technologies including DOM, SCSS/CSS, HTTP, CORS, and CSP
Experience working with frontend monitoring, testing, and CI/CD tooling such as Sentry and GitHub Actions
Familiarity with Service Workers and browser performance optimisation techniques
Experience writing unit and integration tests for frontend applications
Strong communication skills and ability to work effectively within distributed engineering teams
Professional frontend engineering experience building scalable web applications in production environments
For senior-level candidates, experience designing frontend architectures, reusable component systems, and leading technical initiatives
Experience working with Ethereum, JSON-RPC, Solidity, smart contracts, or Web3 technologies
Familiarity with Ethers.js, EIP-2612, and Automated Market Maker (AMM) protocols
Experience building decentralised applications and blockchain-based user interfaces
Backend exposure with technologies such as NestJS, Docker, or microservices
Experience working in fast-paced startup, scale-up, or high-growth technology environments
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.
Software Engineer, Frontend (Angular)