COMMERCIAL · 600K USERS
Legend TV
A streaming platform built solo — Urdu-first dubs for PK · IN · SA.
- 600K+peak users
- $20K+year-1 rev
- #1PS · 5 mo
- 3countries
Muhammad Usman.
Ottoman Coder · Senior Mobile Engineer
Senior Mobile Engineer · Ottoman Coder · 50+ apps shipped, 600K users reached
- 600K+peak users on Legend TV
- 50+production apps shipped
- #1Play Store category, 5 months
- 9 pkgsopen-source on pub.dev
A handful of projects that show the range — commercial hits, a live flagship, open-source tools and Flutter Web demos.
FLAGSHIP · LIVE ON PLAY STORE
LifeLink
Crisis support, self-tracking & AI poetry — built with Google Gemini Pro.
A province-aware crisis-line directory, sleep / diet / stressor tracking with charts, calming artwork galleries, and AI-generated supportive poetry. Flutter + BLoC, synced over Firebase.
CONNECTED HARDWARE · BLE BREATHALYZER
AlcoPass
A connected breathalyzer station — blow, get your BAC.
Built around the AlcoPass C1 breathalyzer — pairs over BLE, refines blood-alcohol from age / weight / sex / licence, and reads g/L blood + mg/L air against the legal limit. Flutter + BLoC, 5 languages, synced to Firestore.
OPEN SOURCE · GPL-3
UDownload
A YouTube-style video browser & downloader — no API key.
Built on my own newpipeextractor_dart. Search, channels, playlists, native ExoPlayer playback, and offline downloads.
SELF-CARE · PRIVACY-FIRST
iCare
A private, judgement-free self-care companion.
Meditation & breathing, an emoji mood tracker, private diary, hobby timer and to-dos — secured with a fingerprint lock and screenshot blocking.
FLUTTER WEB · LIVE DEMO
Chronos
A scroll-driven journey through the universe.
30+ CustomPainter scenes on a single Ticker, zero image assets, locked at 60 fps.
Scroll position is the timeline.
FLUTTER WEB · LIVE DEMO
BabyPig
Animated crypto landing page — zero animation packages.
Scroll-triggered reveals, glassmorphism nav, animated counters and staggered cards — a marketing site built entirely in Flutter Web.
Nine packages published to pub.dev — gap-fillers for the Flutter/Dart ecosystem. Click any install snippet to copy.
ORIGINAL AUTHOR · CREDITED BY GOOGLE
firebase_admin_sdk
I authored the original firebase_admin_sdk on pub.dev. Google's official Firebase Admin SDK for Dart now uses the same package name and credits me as the original author.
NEW · ON-DEVICE AI
vision_ai
On-device hand gesture + facial emotion detection for Flutter. 13 gestures, 7 emotions, 21 hand landmarks. MediaPipe + ML Kit + TFLite, 25–30 fps, zero cloud.
COMPANION
vision_ai_flutter
Pre-built UI overlay widgets for vision_ai — hand skeleton painter, face contour mesh, gesture/emotion labels.
ACTIVE
tanquery
TanStack Query ported to Dart — automatic caching, stale-while-revalidate, background refetching, mutations, infinite queries. Pure Dart.
COMPANION
tanquery_flutter
Flutter adapter for tanquery — QueryBuilder, MutationBuilder, InfiniteQueryBuilder widget builders.
COMPANION
tanquery_devtools
Visual cache inspector overlay for tanquery — real-time query status, mutation log, cache actions.
ACTIVE · GPL-3
newpipeextractor_dart
NewPipe Extractor wrap — extract YouTube, SoundCloud, Bandcamp, PeerTube info, streams, subtitles, comments, channels, playlists. No API key.
ACTIVE
firebase_cloud_messaging_dart
Send FCM push notifications directly from Dart — zero backend needed. Works in Flutter, Serverpod, CLI, Cloud Run.
COMMUNITY FORK
charts_flutter_maintained
Community-maintained fork of Google's abandoned charts library. Keeping legacy apps alive.
-
Jul 2024 → present
Senior Mobile App Developer @ BeInMedia · Nmo AI
AI-powered fitness app — BLE health-device sync, Gemini AI coaching, Flutter architecture for a cross-functional international team.
Shipped- Nmo AI · BLE fitness
-
Nov 2020 → present
Senior Mobile App Developer @ Ottoman Coder · freelance
50+ production apps for clients in PK, IN, SA, AU, TH, LA. Audited 20+ legacy codebases. Product-led engineering directly with founders.
-
Nov 2022 → May 2023
Senior Mobile Software Engineer @ SD Cold Logistics · YouShopper
Built 3 separate apps (Customer, Seller, Delivery) all live on Play Store. Coin-based monetisation, OneSignal, YouTube V3. Zero-downtime backend migration.
Shipped -
Sep 2021 → Mar 2023
Senior Flutter Developer @ Fulfil Supply Chain
Cross-border e-commerce — OpenCart API, real-time inventory sync across countries. Firebase Auth + FCM. Measurable startup-time gains.
Shipped -
May 2022 → Oct 2022
Senior Flutter Developer @ HomyKSA
Home services marketplace for Saudi Arabia — real-time order matching, payments, worker management.
Shipped
- Languages
- DartSwiftKotlinPHPJavaScriptJavaSQL
- Frameworks
- Flutter (Android, iOS, Web, Desktop)LaravelNode.js
- State Mgmt
- BLoC / CubitGetXProviderValueNotifier
- Backend
- FirebaseSupabasePostgreSQLMySQLHiveIsarSQLite
- APIs
- RESTFCM HTTP v1OpenCartYouTube V3Google Maps
- Hardware
- Bluetooth Low Energy (BLE)Health Device Sync
- AI/ML
- Gemini AIMediaPipeGoogle ML KitTFLiteOn-Device Inference
- Vision
- Hand Gesture RecognitionFacial Emotion DetectionFace Contours
- Tools
- FigmaPostmanGoogle CloudGitBitbucket
Hire one engineer.
Ship the whole app.
I design, build and release production Flutter apps end-to-end — 50+ shipped, one scaled to 600K users and held #1 in its Play Store category for five months. Product-led, straight with founders, and I reply within ~24 hours.
- End-to-end UI, architecture, backend and the store release — one engineer, nothing lost in handoffs.
- Proven at scale 600K users and real revenue, plus the hard parts: BLE hardware, on-device AI and multi-language.
- Open & communicative 9 open-source packages on pub.dev, write-ups on Medium, and a reply within ~24h.
Available for new work
Read the engineering write-ups on Medium Open to remote work, long-term contracts, and partnership opportunities. Currently shipping AI fitness app w/ BLE at Nmo AI.
Reach me — pick a channel.
Or write a direct message: ottomandeveloper@gmail.com
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