Mobile Developer (Swift and React Native)
99x Brazil (formerly Nextly) · TELECOMMUTE · Posted Jul 8, 2026
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We're hiring a mobile developer to help our client scale. As one of three founding engineers on a new team, you'll develop features end-to-end, own the app's architecture, and shape the decisions that drive our growth. You'll touch every part of the stack and ship from day one.
Tech stack: iOS and Android apps built natively in Swift and Kotlin plus React Native, with an Elixir backend.
Responsibilities
Produce fully functional mobile applications writing clean code
Gather specific requirements and suggest solutions
Troubleshoot and debug to optimize performance
Design interfaces to improve user experience
Liaise with Product development team to plan new features
Ensure new and legacy applications meet quality standards
Research and suggest new mobile products, applications and protocols