Deep Chhatbar

Ahmedabad, India

• Delivered 8 production React Native applications across field service, supply chain, CRM, IoT manufacturing, HR, spiritual content, and e-commerce domains, serving 1,000+ enterprise users on Android and iOS.
• Architected a cross-project foundation layer comprising reusable Redux architecture, shared component library, and API middleware package (distributed via yalc), adopted across 3+ concurrent projects, reducing project bootstrap time by 40%.
• Engineered continuous native location tracking across foreground, background, and terminated app states with offline buffering and automatic synchronization, enabling reliable route tracking for 100+ field agents in low-connectivity environments.
• Designed a resilient offline-first synchronization pipeline with local persistence, automated retry queues, and server acknowledgment, ensuring reliable location synchronization without data loss across unstable networks.
• Integrated Firebase Crashlytics and Sentry across production applications, enabling real-time crash reporting, stack trace analysis, and faster diagnosis of production issues.
• Developed a high-reliability attendance system using multiple location providers with intelligent indoor/outdoor fallback and ML Kit OCR, improving location verification reliability in GPS-constrained environments.
• Developed an Android native call overlay using foreground services and system-level overlays, enabling real-time caller context even when the application was not running.
• Resolved a critical production performance bottleneck by migrating from AsyncStorage to MMKV, introducing backend pagination, optimizing rendering with FlashList, and improving responsiveness for datasets exceeding 10K records.
• Standardized state management across 100+ Redux slices by designing a reusable generic slice factory, improving maintainability and reducing boilerplate across multiple enterprise applications.
• Integrated Razorpay for e-commerce checkout and CCAvenue for donation payments through secure native and WebView-based payment workflows.
• Implemented Expo OTA Updates to deliver JavaScript fixes and feature updates without requiring Play Store releases, significantly reducing production hotfix turnaround.

Ahmedabad, India

• Led end-to-end development of a subscription-based clothing marketplace in React Native — from architecture through Play Store deployment; onboarded 500+ early users within the first quarter.
• Optimized a cloud-based algorithmic trading platform (SpeedBot) — delivered option builder, equity builder, code bot builder, and option chain modules; reduced bundle size by 50% through code splitting and lazy loading, improving app launch time by 35%.
• Migrated a legacy Ionic ERP application to React Native, introducing Redux Toolkit for state management and offline-first architecture; decreased page load times by 60% and eliminated data sync failures.
• Launched a cross-platform Expo app (Android, iOS, Web) with a dedicated NPM package encapsulating API services, Redux Persist state, and modular UI components (kanban, tree, form views); reduced code duplication across platforms by 70%.