Tech Lead, iOS

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.The RoleAs Tech Lead, iOS, you’ll be the primary technical owner of the 1inch Wallet iOS application. This is a hands-on individual contributor role with no direct people management responsibilities. You’ll own the app’s architecture and development, improve its CI/CD workflow and monitor it after release. You’ll work on wallet features including perpetual trading, prediction markets and DeFi staking, collaborating with the Product Owner, Android Lead and QA. You’ll also use AI-assisted tools in development and testing, applying sound engineering judgement to the code and tests they generate.What You’ll DoOwn the iOS architecture and technical direction, balancing feature delivery, maintainability, performance and securityBuild and improve modular, testable application components, and guide implementation across complex wallet flowsImplement wallet features and technical improvements across the iOS applicationIntegrate the application with backend services, blockchain networks and related wallet servicesWork with Product, Android, Backend, Blockchain and QA on shared product behaviour, API integrations, test coverage and defect investigationUse AI-assisted tools in development and testing, reviewing and validating their output against engineering, quality and security standardsProtect sensitive information by keeping private keys, recovery phrases, credentials and user data out of AI prompts and inappropriate logsOwn and improve the iOS build and CI/CD workflow; monitor releases, investigate production issues and coordinate fixes and improvements to stabilityWho You AreYou have strong hands-on iOS development experience with Swift, including experience building production applicationsYou have practical experience working on a Web3 product, such as a wallet, DeFi application or product integrating with blockchain networks, and an understanding of crypto and tradingYou have experience with iOS build and CI/CD workflows and monitoring production applicationsYou have experience making technical and architecture decisions for an iOS applicationYou communicate technical trade-offs clearly and work well with Product, Android and QAYou are comfortable taking ownership of the iOS application while working independently as its primary iOS technical ownerYou are pragmatic: you can move quickly while keeping reliability, security and maintainability in mindYou use AI tools thoughtfully, question their output and take responsibility for the code you deliverNice to havesExperience building or maintaining a non-custodial walletExperience with transaction signing, wallet recovery or transaction lifecycle flowsExperience building modular, testable applications and handling asynchronous operations and network failuresExperience with security-sensitive mobile functionality, mobile security reviews or incident responseHands-on experience with UIKit or SwiftUI; experience with both is not required1inch 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.