[Remote] Software Engineer (Full-Stack, Mobile-Leaning)

Note: The job is a remote job and is open to candidates in USA. SpeedLabs is a company that builds Speed Survivor, a real-time sports-prediction game. They are seeking a Full-Stack Software Engineer to develop features for their mobile app, fix bugs, and maintain backend services, while working closely with a small team.ResponsibilitiesBuild and ship features in our React Native + Expo mobile app (TypeScript): screens, navigation, onboarding flows, in-game UI, and social featuresFix bugs and triage crashes from Sentry. Reproduce, find the root cause, and ship the fixMake small-to-medium backend changes in our Python/FastAPI services backed by PostgreSQLHelp maintain our internal React/Vite admin panel with contest setup, test tooling, data pipelines, etcTurn Figma designs into clean, consistent UI and polish rough edges (spacing, transitions, empty/error states)Help with day-to-day release work: running iOS/Android builds, chasing down native build issues, and getting changes deployedSkills0–2 years, or strong bootcamp/self-taught with a portfolioStrong AI dev skills. Use Cursor or Claude Code effectively but still able to talk through and explain your code. Being able to use it as a tool but not over-reliantSolid JavaScript/TypeScript fundamentals and some hands-on React NativeComfortable reading code you didn't write and tracing a bug across the front end and an APIBasic Git workflow and the ability to work independently from a written taskHigh ownership and scrappy, but not afraid to ask questionsCares about the user-facing result, not just 'the ticket is closed.'Any Python (FastAPI a bonus) and basic SQL / PostgreSQLFamiliarity with Firebase Auth, Sentry, or mobile app store submissionExposure to real-time systems (WebSockets/SSE), or any sports/gaming/fintech productBenefitsSmall team, direct access to the founder, fast feedback loops.High ownership over deliverables with easy access to support and mentorshipYou'll be supported with clear tasks and code review, with room to grow into owning whole features.Company OverviewSpeedLabs leverages a real-time market engine for sports and develops Momentum Markets. It was founded in 2025, and is headquartered in New York, New York, USA, with a workforce of 11-50 employees. Its website is https://speedlabs.dev.