Tech Lead, iOS

As Tech Lead, iOS at 1inch, you are 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 own the app's architecture and development, improve its CI/CD workflow, and monitor it after release. You work on wallet features including perpetual trading, prediction markets and DeFi staking, collaborating with the Product Owner, Android Lead and QA.

What you'll do

• Own the iOS architecture and technical direction, balancing feature delivery, maintainability, performance and security
• Build and improve modular, testable application components, and guide implementation across complex wallet flows
• Implement wallet features and technical improvements across the iOS application
• Integrate the application with backend services, blockchain networks and related wallet services
• Work with Product, Android, Backend, Blockchain and QA on shared product behaviour, API integrations, test coverage and defect investigation
• Use AI-assisted tools in development and testing, reviewing and validating their output against engineering, quality and security standards
• Protect sensitive information by keeping private keys, recovery phrases, credentials and user data out of AI prompts and inappropriate logs
• Own and improve the iOS build and CI/CD workflow; monitor releases, investigate production issues and coordinate fixes and improvements to stability

What you bring

• Strong hands-on iOS development experience with Swift, including experience building production applications
• 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 trading
• Experience with iOS build and CI/CD workflows and monitoring production applications
• Experience making technical and architecture decisions for an iOS application
• The ability to communicate technical trade-offs clearly and work well with Product, Android and QA
• Comfort taking ownership of the iOS application while working independently as its primary iOS technical owner
• A pragmatic approach: you can move quickly while keeping reliability, security and maintainability in mind
• The ability to use AI tools thoughtfully, question their output and take responsibility for the code you deliver

Nice to have

• Experience building or maintaining a non-custodial wallet
• Experience with transaction signing, wallet recovery or transaction lifecycle flows
• Experience building modular, testable applications and handling asynchronous operations and network failures
• Experience with security-sensitive mobile functionality, mobile security reviews or incident response
• Hands-on experience with UIKit or SwiftUI

About 1inch

1inch is a DeFi ecosystem building financial freedom for everyone. Its products help users and builders trade, hold and track digital assets with self-custody, comprehensive security and an intuitive user experience. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.