Sanjay S Gangwar

I’m a Senior mobile engineer with 7 years shipping production Android, iOS, and Flutter apps, and I go beyond the client by designing, deploying, and operating the backend behind them. I’ve contributed to consumer apps serving 100M+ downloads and 20M+ MAU, with a strong focus on reliability at scale.

I independently built and run a portfolio of 10+ apps end-to-end on a self-hosted Node.js + MongoDB platform (trei.dev). My approach blends strong Kotlin/Jetpack Compose expertise with production backend operations, so features don’t just launch—they stay healthy in the real world.

At PrimeTrace Technology Pvt Ltd, I spearheaded feature development on a consumer Android app serving 20M+ MAU using Kotlin and Jetpack Compose. I architected CI/CD with Fastlane and GitHub Actions across multiple release tracks, migrated legacy modules to Coroutines/Flow and Hilt, and ensured zero-regression rollouts while maintaining production RxJava pipelines.

I also mentor junior engineers through code reviews, architecture sessions, and pair programming, especially around testing and performance tooling. Earlier roles strengthened my cross-platform delivery across Android, iOS, and Flutter, and my independent projects further sharpen my ability to ship polished, automated releases with offline-first data sync and backend support.