Guwanch Haldurdyyev

Mobile & FullstackDeveloper

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

20+ apps shipped on Google Play and the App Store

View projectsDownload CV
Guwanch Haldurdyyev

About me

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

Over 5+ years I've shipped 20+ applications to Google Play and the App Store across ride-hailing, logistics, e-commerce, e-reading and hospitality. On the client I work mainly with Flutter and Kotlin/Compose Multiplatform; on the server with Node.js and TypeScript, backed by PostgreSQL and MongoDB.

I own the whole pipeline: architecture, UI, real-time APIs, automated tests, CI/CD, and store release on Google Play Console and App Store Connect. I have a BSc in Applied Mathematics and a background in competitive mathematics.

Based in Ashgabat, Turkmenistan. Open to remote work and relocation.

Guwanch Haldurdyyev

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
  • Dependency Injection
  • Unit & widget testing

Infrastructure & DevOps

  • Docker
  • Nginx
  • GitHub Actions
  • CI/CD
  • Gradle
  • Git

Release & Monetisation

  • Google Play Console
  • App Store Connect
  • RevenueCat
  • AdMob
  • In-app purchases

Featured projects

See all projects
Rahat Ulag preview
Mobile · Fullstack2026

Rahat Ulag

City and intercity ride-hailing, built on a shared Kotlin Multiplatform core.

  • Kotlin Multiplatform
  • Compose Multiplatform
  • Node.js
  • Google Maps
  • WebSockets
  • FCM
Google PlayApp Store
Fullstack2025

Self-hosted vector map stack

Replaced paid map APIs with a self-hosted tile server, cutting map costs to zero.

  • Docker
  • Nginx
  • Planetiler
  • TileServer GL
  • MapLibre
sakura_epub preview
Open source2025

sakura_epub

Flutter package for rendering EPUB books, published on pub.dev.

  • Flutter
  • Dart
pub.devGitHub

Open source

Published on pub.dev

sakura_epub

Flutter package for rendering EPUB books, published on pub.dev. An EPUB parsing and rendering engine with chapter navigation, theming, typography controls and full-text search — extracted from the reader engine behind ElKitap and published as an open package.

pub.devv1.0.0View on pub.dev

Install

dependencies:
  sakura_epub: ^1.0.0

Achievements

  • Bronze medal — Open Mathematical Olympiad for University Students (OMOUS), Ashgabat

    3rd place

    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

Education

BSc, Applied Mathematics & Information Technology

Oguz Han Engineering and Technology University, Ashgabat — 2019–2024

Experience

  1. Mobile Developer (Remote Contract)

    Nov 2025 – Present

    Software company, Dubai, UAE · Dubai, UAE · Remote

    • Building a school management platform for private schools in the UAE and GCC — grades, attendance, timetables, payments and virtual classes.
    • Set up the full test suite and CI/CD pipeline for automated builds and Play Store deployment.

  2. Freelance Mobile & Fullstack Developer

    Dec 2024 – Nov 2025

    Independent · Ashgabat, Turkmenistan

    • Ride-hailing apps on a shared Kotlin Multiplatform core with a Node.js backend; self-hosted vector map tile infrastructure.
    • Logistics, e-commerce and e-reading apps; published the sakura_epub package to pub.dev.

  3. Mobile Developer

    Mar 2024 – Dec 2024

    Sanly Hyzmat · Ashgabat · Hybrid

    • Flutter development for digital-service products on Android and iOS, with REST and Firebase integration.
    • Store release management on Google Play Console and App Store Connect.

  4. Mobile Developer

    Nov 2023 – Mar 2024

    Pikir · Ashgabat · Hybrid

    • Built and published a suite of digital restaurant menu apps for iOS with multi-language menus and offline content.
    • Handled App Store Connect submissions end-to-end.

  5. Mobile Developer

    Mar 2023 – Oct 2023

    Kamil Ulgam · Ashgabat · Remote

    • Delivered Flutter features for client applications in a fully remote team.
    • Standardised project architecture on BLoC/Cubit, dependency injection and feature-based modules.

  6. Android Developer

    Nov 2021 – Mar 2023

    Turkmenportal · Ashgabat

    • Developed and supported transport and GPS-tracking apps in Flutter and native Android.
    • Real-time location, background services and Google Maps integration.

Get in touch

Open to remote work and relocation.

guwanchaldurdyyew01@gmail.com