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theroimasters1-dev/README.md

Hi, I'm Sunil Kumar πŸ‘‹

Senior Full-Stack & React Native Engineer | Open Source Contributor

Upwork Profile GitHub Contributor TypeScript React Native


πŸš€ About Me

  • πŸ”­ Specialization: React Native (iOS / Android / Web / Hybrid), TypeScript, Performance Optimization, and Complex State Architectures (Onyx, Redux, Zustand).
  • πŸ› οΈ Open Source: Active contributor to high-scale enterprise open-source codebases including Expensify/App, TripSit/TripBot, and sandtable-ai/sandtable.
  • πŸ’Ό Freelance Agency: Founder & Lead Technical Architect at The ROI Masters / Beetle Dynamics.
  • πŸ“ Location: Jaipur, Rajasthan, India.
  • πŸ“¬ Expensify & Upwork Verified: [email protected] | Upwork Freelancer Profile

πŸ’» Core Technical Competencies

  • Languages: TypeScript, JavaScript (ESNext), Python, SQL, HTML5/CSS3.
  • Mobile & Frontend: React Native, React 19, Expo, Next.js, TailwindCSS, Navigation (React Navigation / PlatformStackNavigation).
  • Architecture & State Management: Expensify Onyx, Asynchronous Data Pipelines, Offline-First Architecture, React Lifecycle & Hook Optimizations.
  • Quality Assurance & Testing: Jest, Vitest, React Native Testing Library, DeepScan, Automated CI/CD Workflows.

πŸ† Featured Open-Source Contributions

  • Expensify/App: Author of architectural proposals & surgical bugfixes resolving race conditions, modal routing, Deeplink receipt hydration, and HybridApp lifecycle sync.
  • TripSit/TripBot: Fixed critical authentication timing-safe comparison vulnerabilities (PR #1363), timeout bounds validation (PR #1364), and permission override attributions (PR #1367).
  • sandtable-ai/sandtable: Resolved expression syntax validation (PR #551) and include path whitespace parsing (PR #552) with 100% test pass rate.

🌐 Connect With Me

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