Senior Software Engineer, Mobile & Web

• Strong computer science fundamentals • A strong focus on building high quality mobile and web UIs to specifications • Experience with various architectures and tools within the React Native and React ecosystems (Hooks, Components, Context, Redux). • Experience leading and delivering products at a large scale without performance bottlenecks (hundreds of thousands to millions of users) • Write maintainable code that uses industry best practices to improve the entire software development life cycle (unit testing, linting, automation). • Ability to write well-documented and testable TypeScript code • Familiarity with REST API’s and tooling across web and mobile architectures • Collaborating with engineers across multiple teams to improve code quality • Able to mentor engineers in using best practices for software development • Prior experience working on cross functional teams • Proficient with TypeScript (Bonus: Native iOS/Android) • Experience with CI/CD to improve code stability and code quality • Experience with IDE’s such as VSCode & Android Studio & XCode • Familiar with Android / iOS / Web development tool ecosystem • Motivated to help other engineers succeed and be effective • Flex takes a market-based approach to pay, and compensation may vary depending on your primary work location. Work locations are categorized into one of three tiers based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be commensurate with their experience, qualifications, and Flex’s internal leveling guidelines and benchmarks. • Tier A (NYC/SF/Seattle): $172,000—$210,000 USD • Tier A (NYC/SF/Seattle): • Tier B: $154,000—$190,000 USD • Tier B: • Tier C: $146,000—$180,000 USD • Tier C: • We understand that it takes a diverse team of highly intelligent, curious, determined, empathetic, and self aware people to grow a successful company. Our HQ is located in New York City, but we have employees located throughout the US, Australia, Canada and South America. We are growing quickly, but deliberately, with a focus on building an inclusive culture. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity workplace. • We offer many employee benefits & perks. For full-time U.S based positions we offer: • Competitive medical, dental, and vision available from Day 1 • 401(k) plan with company match (our company match kicks off at the beginning of 2026) • Unlimited paid time off + 13 company paid holidays • Flex Cares Program • Free Flex subscription • For full time non-US employees, we offer