Available for new opportunities

Mustafa
Bhatkar

Flutter Developer & Mobile Craftsman

7+ years building apps people actually love — from 2M+ downloads on Google Play to native Apple Watch experiences. Based in Mumbai, shipped globally.

2M+
Downloads
4.9
Avg Rating
14+
Apps Published
Time Travel App
No Smoke App
Pocket App
Breathe App

Flutter developer.
Indie app creator.

I build mobile apps that people genuinely enjoy using — clean, thoughtful, and polished to the App Store level. With 7.5 years in mobile development (6.5+ in Flutter), I've taken apps from zero to millions of downloads, entirely through craft and care.

Beyond Flutter, I extend apps into the native layer — Apple Watch companions with WatchKit, Home Screen widgets with WidgetKit and Jetpack Glance, bridging it all via Platform Channels.

Flutter SwiftUI React Dart Swift Kotlin watchOS / WatchKit WidgetKit (iOS) Jetpack Glance Platform Channels Firebase Spring Boot flutter_bloc Figma
🏆

Google Play Social Impact Star

Breathe recognized by Google Play in 2022 for its contribution to mental well-being and accessibility worldwide.

🎙️

Amazon Alexa Game Dev Winner

Won the Amazon Alexa Game Development Contest (MindSumo, 2018), selected among global participants.

📚

Flutter Educator

Taught Flutter to college students alongside active app development, giving back to the next generation of mobile devs.

Built with care,
loved by millions.

Also on Apple Watch
Native watchOS Companion

Built from scratch in WatchKit & SwiftUI — guided breathing sessions delivered directly on your wrist, synced with the iOS app via WatchConnectivity.

Breathe Watch - Session List
Session List
Breathe Watch - Session Screen
Session Screen
Breathe Watch - Breathing Animation
Breathing Guide

Other builds from the Havabee studio

Grasp
🍽️
Grasp
A modern, QR-powered digital menu and ordering system built for Grasp Café, Doha. Scan. Explore. Order — instant access, no app download needed. Arabic & English, real-time Firebase backend, and a full merchant dashboard.
Hospitals For You
🏥
Hospitals For You
Find healthcare facilities near you in Mumbai. Built with Flutter, Spring Boot and MongoDB — helping people find the care they need, fast.

+ Restaurant Menu App, Loan Lending Platform (Infina Finance / Kotak Mahindra Bank), Grocery Delivery Suite, and more.

Native

Beyond Flutter.

When Flutter can't reach, I go native — building tightly integrated platform features that feel right at home on each OS.

Apple Watch Companion
watchOS · WatchKit · SwiftUI

Built a native watchOS companion for Breathe from scratch — guided breathing sessions directly on the wrist, synchronized with the iOS app via WatchConnectivity.

📱
iOS Home Screen Widgets
WidgetKit · Swift · Lock Screen

Implemented WidgetKit widgets in Swift for Time Travel — live time zone data surfaced on the iOS Home Screen and Lock Screen without opening the app.

🤖
Android Home Screen Widgets
Jetpack Glance · Compose · Kotlin

Built Jetpack Glance (Compose-based) App Widgets for Time Travel on Android, with data bridged seamlessly from Flutter via Platform Channels.

🔗
Flutter Platform Channels
Method Channels · Dart ↔ Swift/Kotlin

Designed and maintained Method Channel architecture enabling seamless two-way communication between Dart and native Swift/Kotlin code across multiple projects.

XP

Where I've worked.

Lead Application Developer
Flocco · Mumbai, India
Nov 2024 – Feb 2026
  • Developed and maintained three in-house Flutter applications, implementing features from Figma designs with smooth UX.
  • Optimized app performance, resolved critical bugs, improved state management and API integrations.
  • Led a React-based scheduling platform (Gantt charts, drag-and-drop work order assignment).
  • Conducted code reviews and mentored junior developers; collaborated cross-functionally with PMs and designers.
Flutter Developer / Lead App Developer
Havabee (Sole Proprietorship) · Mumbai
Jul 2018 – Oct 2024
  • Built and launched 8 apps on Google Play and 6 on the App Store, including Breathe (2M+ downloads, 4.9★).
  • Developed client projects: NGO social cause app (Flutter + Spring Boot + MongoDB), restaurant apps, healthcare finder.
  • Transitioned from Native Android to Flutter in September 2019, staying current with every major SDK release.
  • Worked directly with clients to translate requirements into polished, production-ready applications.

Let's build
something great.

Open to full-time Flutter / Mobile Engineer roles. Based in Mumbai, open to remote.