Note: The job is a remote job and is open to candidates in USA. CoffeeSpace is recruiting for a YC- and Google-backed AI startup building self-improving software for consumer apps. The role involves owning major parts of the mobile SDK that powers customer integrations, including building features, improving reliability, and collaborating with the founding team.

Responsibilities

• Own core parts of the iOS and React Native mobile SDK experience used by consumer app customers
• Build and launch new mobile features, including remote onboarding and monetization experiences
• Improve SDK reliability, performance, usability, and developer experience
• Work directly from customer feedback to make integrations smoother and faster
• Maintain documentation, testing, releases, versioning, and CI/CD workflows
• Help support mobile surfaces across iOS, React Native, and potentially Android / Flutter over time
• Work closely with the founding team in a fast-moving, high-ownership environment

Skills

• 1+ years of mobile engineering experience with a strong iOS foundation
• Experience shipping apps to the App Store
• Hands-on experience with mobile SDKs or SDK-heavy tools such as RevenueCat, Amplitude, Segment, Stripe, Firebase, or similar
• Experience with Apple In-App Purchases
• Comfort working in fast-moving, ambiguous environments
• A strong bias toward shipping and solving customer problems directly
• Daily or serious production usage of AI coding tools such as Cursor, Claude Code, or similar
• Prior experience building or maintaining a mobile SDK
• Experience with release maintenance, documentation, SDK versioning, and developer tooling
• React Native experience
• Flutter or Android experience
• Experience with native modules or bridging logic
• Experience with mobile webviews, especially making Android webviews feel close to native
• Experience with analytics or experimentation tools such as Amplitude, Segment, Statsig, or similar

Benefits

• Contract-to-full-time path: Available for strong performers
• The role is remote during the contract phase, with a path to full-time conversion if both sides are excited
• The company has successfully converted a contractor into a full-time engineer before

Company Overview