Building scalable, high-performance Android apps used by real people — with clean architecture, smooth UX, and battle-tested integrations like Retrofit, Firebase & Google APIs.
I'm Srijan Chakraborty, an Android Developer based in Kolkata, India with 3+ years of professional experience crafting mobile applications that are fast, reliable, and delightful to use.
I specialize in Java and Kotlin for native Android, with deep experience in API integration using Retrofit and Volley, payment gateway integration (PhonePe), and leveraging the full Firebase ecosystem.
Beyond Android, I've shipped cross-platform apps using Flutter. I've led cross-functional teams, improved system performance by 25%, and reduced bugs by 30%.
I hold a B.Tech in Electrical Engineering from MAKAUT, West Bengal — which taught me to think in systems and solve problems from first principles.
Digital parenting solution — real-time location tracking, app usage analytics, screen-time limits, content filtering, remote device locking, and push notifications.
Fully API-driven Android application. Designed and developed end-to-end as the sole Android developer at ARISU App Solutions.
Built solo for Dp World on a specialized mobile scanner device. Reads barcodes and QR codes in real time. Custom Android OS optimized for specific hardware.
Logistics tracking app connecting transporters and truck drivers. Tracks full journey from cargo loading to unloading. Built solo from scratch.
Form-based healthcare Android application. Sole developer — handled all UI, logic, and API integration from beginning to end.
Point-of-Sale Android app with integrated PhonePe payment processing. Built as part of a business tools suite at ARISU App Solutions.
Live cricket score and updates platform. Improvements, stability fixes and performance enhancements. Live on Google Play Store.
▶ Play StoreCross-platform Flutter healthcare app with Google Maps API, Firebase real-time data, and Dio REST API. Available on Android & iOS.
▶ Play StoreScans barcodes and QR codes, prints directly to Bluetooth printers. Fast business workflows on both Android and iOS.
🔧 Under DevelopmentAccessibility app for hearing impairments. Converts speech and sounds into on-screen text in real time. Ships on Android & iOS.
🔧 Under DevelopmentReal-time live streaming with video broadcast, viewer interaction, live chat, and audience engagement. Built for Android & iOS.
🔧 Coming SoonBug fixes, feature enhancements, and performance improvements. Live on Google Play Store.
▶ Play StoreDigital attendance management system. Feature additions and bug resolution. Live on Google Play Store.
Live streaming application. Stability improvements and UX enhancements. Live on Google Play Store.
▶ Play StoreHealthcare app to connect and control medical machines via Bluetooth. Manual and remote operation with custom device commands.
▶ Play StoreOnline pharmacy — order medicines and health essentials with secure payments, real-time tracking, and doorstep delivery.
▶ Play StoreFeel free to reach out for full-time roles, freelance Android projects, collaborations, or just a friendly hello. I reply within 24 hours.