React Native Developer (Mid–Senior)

📋 Description

• • As a React Native Developer (Mid–Senior) at Ruby Labs Ltd., you will play a pivotal role in expanding the company’s mobile presence by building and maintaining high-performance, scalable applications for iOS and Android. Your work will directly impact user experience across health, education, and entertainment products, enabling seamless, reliable, and engaging interactions for a growing user base.
• • You will own end-to-end delivery of mobile features, from concept to production, ensuring technical excellence, performance optimization, and reliability. This includes writing clean, maintainable code, debugging complex production issues, integrating with backend systems, and contributing to CI/CD pipelines and observability practices that keep the app stable and fast.
• • You will join a dynamic, fast-moving engineering team within a innovative tech company that values ownership, accountability, and impact. Ruby Labs fosters a culture where engineers are empowered to solve hard problems, ship quickly, and grow alongside the products they build.
• • In this role, you will deepen your expertise in React Native performance tuning, native module integration, mobile observability, and release automation. You’ll gain hands-on experience shaping mobile architecture at scale while contributing to product decisions that influence millions of users.
• • Deliver new mobile product features with strong execution and attention to detail.
• • Maintain and improve the React Native codebase, performance, and stability.
• • Integrate with backend APIs, caching layers, and real-time services.
• • Debug production issues, investigate edge cases, and ship fixes quickly.
• • Implement crash reporting and performance observability (Sentry, tracing, logs, metrics).
• • Optimize app performance across rendering, navigation, memory usage, latency, and offline behavior.
• • Write clean, maintainable code with a strong understanding of software fundamentals.
• • Contribute to technical discussions, planning, documentation, and delivery decisions.
• • Support improvements to builds, releases, testing, and app store deployments.