React Native Expertise | Stefan Sukara

Mastering Mobile Excellence

Delivering high-performance, cross-platform experiences with 8+ years of specialized engineering expertise.

Technical Capabilities

My approach combines deep architectural knowledge with a focus on user experience and performance.

Advanced Architecture

Mastery of bridging JavaScript and native code. I build scalable architectures that maintain performance as your app grows, ensuring long-term maintainability.

Performance First

Obsessive optimization using Flipper and React DevTools. From lazy loading to animation frame rates, I ensure your app feels buttery smooth.

Complex State Management

Expert in Redux, Context API, and MobX. I implement robust data flow strategies that handle complex business logic without UI lag.

Seamless Navigation

Deep expertise in React Navigation. Implementing complex stacks, tabs, drawers, and deep linking for a fluid user experience.

Native Modules

Breaking the JS barrier. I write custom native modules in Swift and Java/Kotlin when standard libraries fall short.

Testing & QA

Zero-tolerance for bugs. Comprehensive testing strategy using Jest, React Testing Library, and Detox for end-to-end reliability.

Featured Impact

Bold product delivery across startups and high-scale platforms.

Taskrabbit

Senior RN Engineer

Maintained and evolved a production React Native app with millions of users.

  • Led performance optimization and reliability upgrades.
  • Shipped continuous improvements while monitoring live traffic.
React NativePerformance
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3Five

Lead Engineer

Built a TikTok-style video MVP in 3 months using Expo + native video modules.

  • Cut video load times by 60% with buffering + preloading.
  • Custom ExoPlayer/AVPlayer for smooth infinite playback.
ExpoNative VideoMVP Build
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1060 Sports

Lead Engineer

Delivered a payments-first MVP and scaled the platform for multi-program support.

  • Designed payment architecture with Stripe + Cloud Functions.
  • Migrated Firestore data model for multi-level programs.
FirebaseStripeCloud Functions
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Firecart

Founder & Engineer

A modern grocery list app with offline-first UX and hundreds of active users.

  • Iterated over years with continuous UX refinements.
  • Keeps lists fast and reliable even without network.
Offline-firstProductiOS/Android
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Rally Tennis

MVP Engineer

Built a tennis community MVP with Firebase in 3 months.

  • Shipped core scheduling and player experience quickly.
  • Focused on fast iteration with a tight RN + Firebase stack.
React NativeFirebaseMVP Build
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Why Partner With Me?

Beyond coding, I bring senior-level strategic thinking to your mobile roadmap.

  • Native & JS Bridge Expert

    I understand the React Native internals, allowing me to solve issues that pure JS developers can't touch.

  • Scalable Codebases

    I write clean, typed, and documented code that your future team will thank you for.

  • Product-Minded Engineering

    I don't just build features; I optimize for user retention and business metrics.

  • Full-Cycle Delivery

    From architecture planning to App Store submission and CI/CD automation.

  • Collaborative Team Player

    I thrive in cross-functional teams, fostering open communication and mentorship to elevate everyone's performance.

  • Transparent Communication

    No black boxes. I provide clear, regular updates and honest feedback, ensuring you're always in the loop.

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