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1inch is the DeFi ecosystem building financial freedom for everyone.
1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond. So if you're someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team.
Your mission
Lead the technical execution, architecture, and engineering excellence of the 1inch web dApp. This is a hands-on technical leadership role where you'll shape the architecture of a security-critical Web3 application used to access decentralized finance. You'll build secure, scalable, and high-performing frontend systems, guide engineering decisions across wallet interactions and blockchain integrations, and help establish engineering standards that balance delivery speed with quality, security, and long-term maintainability.
What You’ll Do
- Lead the technical direction and frontend architecture of the 1inch web dApp, with security as a core design principle
- Build production code for critical features, complex Web3 user journeys, and performance-sensitive areas
- Design and improve secure integrations with backend services, blockchain APIs, wallet providers, signing flows, approvals, swaps, and transaction lifecycle management
- Establish and uphold engineering standards for security, performance, accessibility, testing, and code quality
- Drive secure-by-design engineering practices and improve the reliability and resilience of wallet-related functionality
- Mentor frontend engineers through technical guidance, code reviews, hiring, onboarding, and ongoing development
- Drive the adoption of AI-assisted engineering practices while maintaining rigorous engineering quality, security, and maintainability
- Collaborate with product, design, backend, mobile, QA, and analytics teams to deliver scalable, reliable features and improve the long-term health of the platform
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Who You Are
- 6+ years of professional frontend or full-stack development experience, including experience in a senior or technical leadership role
- Strong knowledge of TypeScript and Angular, with experience building, shipping, and maintaining large or complex production web applications
- Strong understanding of frontend architecture, state management, application design patterns, and performance optimization
- Experience integrating REST and Web3 APIs in production environments, including wallet providers, signing, multi-chain user experiences, and libraries such as ethers.js, viem, or web3.js
- You have extensive practical experience using Cursor AI or comparable AI-native engineering environments
- Experience applying secure engineering practices, threat modelling principles, and securely handling sensitive user and wallet-related data in production environments
- Experience with Git, CI/CD pipelines, collaborative code review processes, and AI-assisted engineering workflows with appropriate quality controls
- Experience mentoring engineers, raising engineering standards, and communicating effectively with both technical and non-technical stakeholders
- Strong ownership mindset and problem-solving skills
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Nice to haves
- Experience with Nx monorepos, Angular SSR, feature flags, or product analytics
- Experience with AI-assisted code review, testing, or security automation in CI
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.
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