Senior Software Engineer - Mobile

About this role

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer – Mobile based in the United States

Join a mission-driven fintech environment as a founding member of a mobile engineering team, building the next generation of mobile experiences for employees managing their retirement savings and plan administrators overseeing retirement plans. This hands-on role offers the opportunity to shape the mobile architecture, development practices, and release operations from the ground up, without legacy constraints. You will deliver polished iOS and Android experiences while solving complex challenges involving financial data, authentication, security, and performance. AI-powered coding agents will be an integral part of your engineering workflow, with you providing the technical direction and quality oversight. Working closely with Product, Design, and backend engineering teams, you will influence the technical roadmap and help establish standards for a reliable, accessible, and high-performing mobile platform.

### Accountabilities

• Design, build, and ship high-quality mobile experiences for iOS and Android, supporting employees managing retirement savings and plan administrators managing retirement plans.
• Establish a modern, modular mobile codebase from scratch, with maintainable architecture, modern concurrency, clean dependency management, and testability.
• Direct AI coding agents throughout the software development lifecycle and help define effective agentic engineering workflows and quality standards.
• Develop secure fintech capabilities, including accurate real-time balances, secure authentication, biometric access, and protection of sensitive financial information.
• Own mobile release operations, including CI/CD pipelines, phased App Store and Google Play releases, feature flags, and automated UI testing.
• Monitor and improve app performance, crash-free sessions...