Hardik

Senior React Native Developer with 5+ years of experience architecting and shipping cross-platform mobile applications for iOS and Android. Demonstrated expertise in payment gateway integrations (PAX, Stripe Terminal, Converge, MagTek), offline-first architecture with RealmDB, custom native module development, and real-time communication via Agora SDK and Socket.IO. Delivered 4+ production apps on the App Store and Google Play with a strong focus on performance optimization, Firebase monitoring, and full-cycle mobile deployment via TestFlight and Google Play Console.

Sr. React Native Developer at Siya Infotech Solutions Pvt. Ltd. (2024-05 – Present)

Senior React Native Developer role focused on architecting cross-platform POS applications with payment gateway integrations and offline-first architecture.

• Architected a cross-platform POS application using React Native with PAX terminal integration, enabling secure, real-time payment processing on both iOS and Android.
• Implemented Tap to Pay via Stripe Terminal SDK for contactless in-person transactions; integrated MagTek card readers to capture raw magnetic-stripe data.
• Designed an offline-first architecture with RealmDB, boosting application uptime by 70% in low-connectivity retail environments.
• Built an offline peer-to-peer communication system over TCP/IP, enabling invoice and data sharing between devices on the same Wi-Fi network with zero internet dependency.
• Engineered custom native modules (printer, scanner, payment gateway) and reusable hooks to extend React Native capabilities and ensure cross-device interoperability.
• Optimized image-handling and data backup pipelines, cutting synchronization time by 30% and improving overall data reliability.
• Integrated Firebase Cloud Messaging, Crashlytics, and Performance Monitoring, accelerating issue detection and resolution across production builds.
• Implemented deep linking via AppsFlyer to support marketing attribution and enable seamless in-app navigation for campaign-driven user flows.
• Managed full end-to-end deployment lifecycle — builds, QA, and staged releases — via TestFlight (iOS) and Google Play Console (Android).

React Native Developer at IT Services India (2021-01 – 2024-04)

React Native Developer role involving designing scalable mobile applications with Clean Architecture, real-time communication features, and payment gateway integrations.

• Designed a scalable, modular React Native application using Clean Architecture with feature-based folder structure, reusable service layers, and centralized Redux state management to maximize maintainability and team scalability.
• Delivered end-to-end mobile applications featuring authentication, real-time chat, and audio/video calling using WebRTC and Agora SDK.
• Integrated Stripe and MangoPay payment gateways, ensuring PCI-compliant, scalable online transaction flows.
• Produced pixel-perfect UIs with advanced animations using Reanimated and PanGestureHandler, directly improving user engagement and retention metrics.
• Deployed Google Maps APIs alongside custom Android native modules to power real-time location-based features.
• Managed AWS S3 media uploads and built production-grade CRUD APIs with Node.js and MongoDB to support scalable backend operations.
• Implemented a referral and attribution system using Branch.io for deep linking and user acquisition tracking.
• Contributed to a Next.js web platform, extending product reach across web and mobile touchpoints.

Master of Computer Applications in Computer Applications – H.N.G. University, Patan (2018 – 2020)

Bachelor of Computer Applications in Computer Applications – H.N.G. University, Patan (2015 – 2018)