Software Engineer | Flutter
Software Engineer with 3+ years building high-performance, AI-powered cross-platform mobile apps for global clients.
UPI now lets eligible users approve payments with a fingerprint or face. What happens on the phone, what NPCI and RBI require, what stays undisclosed, and where the real risks lie.
A flash sale tests more than traffic. How to reserve limited stock safely, treat payment timeouts as unknown, and recover when a customer pays but the order cannot be confirmed.
Face ID or a fingerprint should unlock a protected refresh token, not replace the server's check. How to build biometric session unlock in Flutter with Keystore, Keychain and OAuth.
How mobile app reverse engineering works: the eight-stage assessment workflow, static vs dynamic analysis, what can be recovered, obfuscation limits, legal context and a practical checklist.
How to build a smart home app for locks, ACs and lights: backend vs local control, Matter 1.6, Thread and MQTT, HomeKit and iOS requirements, offline behaviour, security and regulations.
A platform-agnostic guide to mobile application security: OWASP Mobile Top 10 risks, secure storage, API authorisation, reverse engineering, integrity checks, testing approaches and a checklist.
