Ambuj Singh

I’m an Android developer who builds reliable, user-centric applications for real-world field operations and live experiences. I’ve developed and maintained multiple Android apps for smart metering and elections workflows, focusing on performance, reliability, and compliance.

In my work, I’ve streamlined data collection and operational transparency—building features to capture essential facilities data, track pending works, and manage attendance at polling stations. I’ve also contributed to deployment success, including large-scale rollouts such as “15,000+ field workers” and “1,000+ field workers.”

On the product side, I’ve integrated Google Maps API and geolocation for real-time order tracking, added secure in-app payments with Razorpay, and implemented real-time updates via Firebase Cloud Messaging. I’m comfortable delivering offline-first experiences in low-network areas using batch uploads and map-based tooling.

More recently, I’ve taken on mobile security and reverse engineering work as a “Senior security Consultant,” using Jadx and Apktool for DEX and Smali analysis and Frida for runtime instrumentation. I also inspect native libraries and authentication flows (Ghidra, HTTP Toolkit, Burp Suite), then identify vulnerabilities and recommend remediation aligned with OWASP mobile security practices.