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northernwolf00/README.md

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Mobile & Fullstack Developer

Flutter · Kotlin Multiplatform · Android & iOS · Node.js · TypeScript

20+ apps shipped on Google Play and the App Store · Open source on pub.dev · Applied mathematics background


About me

I build complete products end-to-end — from the mobile client to the backend API, database and deployment.

  • 5+ years of commercial development
  • 20+ apps live on Google Play and the App Store — ride-hailing, logistics, e-commerce, e-reading, hospitality
  • Mobile: Flutter and Kotlin/Compose Multiplatform — one codebase, native feel on both platforms
  • Backend: REST and WebSocket services in Node.js / TypeScript with PostgreSQL and MongoDB — the APIs behind my own apps, including real-time ride matching and media streaming
  • Infrastructure: Docker, Nginx, self-hosted map tile servers, unit & widget tests, GitHub Actions CI/CD, Play Console / App Store Connect
  • BSc in Applied Mathematics — three-time bronze medalist at an international university mathematics olympiad

📍 Ashgabat, Turkmenistan · open to remote work and relocation


📦 Open source

sakura_epub · published on pub.dev

A Flutter package for rendering EPUB books — chapter navigation, theming, typography controls and full-text search. Built from the reader engine behind ElKitap.

dependencies:
  sakura_epub: ^0.1.0

Flutter Dart pub.dev


🚀 Featured projects

🚕 Rahat Ulag · Rahat Ulag Driver

A complete ride-hailing suite — passenger booking app and driver companion, sharing one Kotlin Multiplatform core across Android and iOS. City and intercity rides, real-time trip tracking on the map, background location services and push notifications. Kotlin Multiplatform Compose Multiplatform Node.js Google Maps WebSockets FCM

🗺️ Self-hosted vector map stack

Replaced paid map APIs with a self-hosted tile server: Planetiler for tile generation from OpenStreetMap data, TileServer GL for serving, behind Nginx in Docker. Cut map costs to zero and made offline-friendly maps possible. Docker Nginx Planetiler TileServer GL MapLibre

Music streaming platform with synced lyrics, optimised media playback and a backend API. Kotlin ExoPlayer Node.js REST

Digital reading app with an offline library and a custom EPUB rendering engine — later extracted and published as sakura_epub. Flutter Google Play App Store

Cargo and shipment tracking with real-time status updates. Flutter REST PostgreSQL

🍽️ Restaurant Menu Suite

Five digital menu apps (Kebapchy, Balykchy, Mado, Gala, DaVinci) published on Google Play and the App Store — multi-language menus with offline content. Flutter Android iOS


🛠️ Tech stack

Mobile  Flutter Dart Kotlin Compose Multiplatform Jetpack Compose Android SDK Swift Flame

Backend  Node.js TypeScript Express REST WebSockets gRPC PostgreSQL MongoDB Firebase

Architecture  BLoC / Cubit MVVM Clean Architecture GetIt DI Unit & Widget Testing

DevOps & Tools  GitHub Actions CI/CD Docker Nginx Gradle Git Figma

Monetisation  RevenueCat AdMob In-App Purchases Play Console App Store Connect

My Skills


🏅 Competitions & achievements

Competition Result Year
Open Mathematical Olympiad for University Students (OMOUS) — Ashgabat 🥉 Bronze medal 2020, 2021, 2024
International Student Team Competition in Mathematics (ISTCiM) — University of Silesia, Poland Turkmenistan national team 2021
International Mathematics Olympiad — RUDN University, Moscow Participant 2023
NSUCRYPTO — International Olympiad in Cryptography Participant
RevenueCat Shipaton — global mobile app hackathon fitFriend · Garagum Racing 2025, 2026

📚 Teaching

I write and teach an eight-module Flutter & BLoC curriculum in Turkmen — from Streams and Cubit through architecture to testing, with full example projects and homework. Making modern mobile development accessible in my own language matters to me.


GitHub stats

GitHub Streak


Get in touch

📍 Ashgabat, Turkmenistan · 📧 guwanchaldurdyyew01@gmail.com

Open to remote

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