Senior Front-End Engineering

Senior Mobile Engineer
Timeleft is a social app that brings strangers together for IRL events. What you build will be used by 150,000+ people every week — discovering their match, chatting with their group, finding the restaurant, and sharing how their evening went. Features ship weekly, your code goes live fast, and you see the impact immediately.
We are looking for a Senior Mobile Engineer to join the App team and help build the next generation of the Timeleft experience. Our product is a React Native + Expo application running on iOS, Android, and Web, backed by a NestJS API.
You will work alongside experienced mobile engineers and collaborate closely with product, design, QA, and backend teams. You'll own features end-to-end — from technical scoping through implementation, testing, and release — and contribute to the architecture and quality of a codebase serving users across 40+ cities worldwide.
This is a high-impact role where your code ships weekly and directly affects how people connect. We are an AI-first engineering team that uses AI tools to accelerate delivery while maintaining strong engineering standards. You'll be expected to use AI coding tools as part of your daily workflow to work effectively with modern development tooling and workflows.
Own features end-to-end: technical scoping, implementation, testing, and release
Build performant, accessible UI components following the design system
Leverage AI coding tools to accelerate development and maintain high code quality
Quality & Testing

Contribute to automated testing and reusable component documentation
Contribute to E2E test coverage and automated testing
Platform & Infrastructure

~ Comfortable contributing to CI/CD, tooling, and platform-specific improvements when needed

Get familiar with the app's architecture, key flows, and team conventions
Set up your development environment and AI-assisted workflow
Ship user-facing features with increasing independence
Build working relationships with product, design, QA, and backend teams
Strong professional experience with React Native and TypeScript
Cross-platform development experience (iOS, Android, Web)
Strong understanding of state management, data fetching, and caching patterns
Performance optimization and React component architecture best practices
Experience with mobile release workflows and app store distribution
Experience writing automated tests for mobile features
Strong debugging and monitoring skills
Comfortable working with AI coding tools — or eager to make them a core part of your workflow
Experience with prompt engineering or AI-assisted workflows beyond coding
Experience with CI/CD pipelines
Experience with real-time features (chat, live updates)
Experience working on apps with international user base (multi-locale, timezone handling)
Ability to balance speed with quality in a weekly release cadence
Eye for UI detail and ability to spot gaps in the UX flow
Ability to scope work: break features into tasks, estimate complexity, and flag risks
4+ years of professional software engineering experience, with 2+ years building mobile applications in React Native

• Production apps shipped to App Store and Google Play
• Experience working in a cross-functional team (product, design, QA, backend)
• Experience or strong interest in working with AI coding tools (Cursor, Claude, Copilot, etc)
• Fluency in English