Flutter apps
that actually
ship.
I'm Sumit Pal — Senior Flutter Engineer with 6+ years shipping production apps, and founder of Appamania, an independent studio building tools for the developer community. Four apps on Play Store, four pub.dev packages at a perfect 160 points each, and something new in the works.
The Next Product.
In active development. Validation phase. Early signups open now.
I architect Flutter apps that hold up in production.
I'm Sumit Pal, a Senior Mobile Engineer with 6+ years shipping production Flutter applications across fintech, e-commerce, telecom, and enterprise domains. Currently, I own architecture end-to-end at Piston Technologies, while leading Appamania, my independent studio building tools for the developer community.
I specialize in Clean Architecture, offline-first sync, and native sensor/multithreading integration, with state management in BLoC and Riverpod and full-stack integrations using Express.js and Supabase. At Piston I independently designed and built two internal engineering platforms from zero — a crash/error reporting system and a team task-tracking tool — removing dependency on paid third-party vendors. I also built envified to kill the multi-minute rebuild cycle for environment switching, once and for all.
Building from KolkataMy current base — engineering tools from the City of Joy. — shipping software that simplifies dev-life for thousands.
Products, not prototypes.
Built with Flutter, shipped on Google Play. Each one solving a real problem for real users.
Medify
Live on Play StoreTrack medications, set reminders, and manage your healthcare routine. Because forgetting to take your pills is only funny in sitcoms.
void main() {
runApp(
AppamaniaApp(
id: 'medify',
theme: Theme.dark(),
child: MedifyScreen(),
),
);
}Wally — The Stupid
Live on Play StoreMeet Wally. He is not smart. He is not useful. But he brings inexplicable joy to your day, and sometimes that's enough.
void main() {
runApp(
AppamaniaApp(
id: 'wally',
theme: Theme.dark(),
child: WallyTheStupidScreen(),
),
);
}Minimalist Forecast
Live on Play StoreA weather app that shows you the weather. Revolutionary concept. Executed with a minimal UI that respects your eyeballs.
void main() {
runApp(
AppamaniaApp(
id: 'minimalist-forecast',
theme: Theme.dark(),
child: MinimalistForecastScreen(),
),
);
}The code is out there.
Judge away.
Four published packages, MIT-licensed and open, every one at a perfect 160/160 pub score. The Flutter community gave me a lot — this is how I give back.
envified
Runtime environment switching for Flutter — swap dev↔prod without rebuilding. SHA-256 integrity checks, biometric gating, zero prod overhead.
The Career Path.
From a first Play Store release to owning architecture for enterprise-grade production apps.
Senior Flutter Developer @ Piston Technologies
"Owning architecture end-to-end for a production enterprise app — plus building two internal platforms from zero: crash reporting and task tracking."
Mobile Application Lead @ Maity Innovations
"Promoted from Technical Associate Developer in Feb 2025. Architecture ownership, mentoring, and team leadership."
Full Stack Engineer @ Accenflair IT Solutions
"Flutter and Node.js/Express.js backend work in a fast-paced product team."
Mobile Application Developer @ Lepton Software
"Enterprise telecom mobile development; migrated the codebase from Flutter 2.x to 3.x with zero regression."
M.Tech, Computer Science @ Dr. B.C. Roy Engineering College
"CGPA 8.08 — deepened the fundamentals alongside shipping code."
Flutter Developer @ Stylabs Technologies
"Secure Flutter apps with Riverpod and Clean Architecture."
Founded Appamania
"First app shipped to Play Store. It's grown since."
Early Career — Flutter & full-stack internships
"LotPick Consulting, The Design Collective, ADSPLTech, Padmavati Enterprises. Where it all started."
B.Tech, Computer Engineering @ Durgapur Institute of Advanced Technology and Management
"CGPA 8.00 — where the fundamentals began."
Let's Build Something
Open to freelance, consulting, and collaborations. If you need a senior Flutter engineer who ships production apps and thinks in architecture — let's talk.
If anything I've built made
your day better — buy me a chai.
All of this — the apps, envified, the open-source work — is built on weekends and late nights. Direct UPI. No middlemen. 100% reaches me. And yes, I actually drink chai. Rooted in Durgapur, building in Kolkata.