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Yusuf İhsan Görgel

I build iOS, Android and desktop apps with Flutter · Backend with Go and Node.js

I have been building production apps with Flutter since 2022. My main work is the FugaSoft sales and checkout (POS) system developed for retail stores in Germany. The system runs on Android, iOS, Windows, macOS and Linux from a single codebase and processes more than 100,000 transactions a day. On this project I am responsible for the local data layer on SQLite/Drift and the offline sync that keeps the register selling when the internet goes down. I integrated card payment terminals via the ZVT protocol and the TSE signature hardware that German regulations require for cash registers. Highlights: • Dorse (Google Play): I led mobile development of the weighbridge and logistics tracking app. The live location of more than 5,000 vehicles is tracked on a map via WebSocket. • Aydınlık E-Gazete (App Store, Google Play) and Bilim ve Ütopya E-Dergi (App Store): Reading apps where downloaded issues can be read offline. • Galvapedia: I delivered the Flutter app, the desktop admin panel and the Node.js/MongoDB API behind both, end to end. • My own infrastructure: 11 Flutter apps on a shared codebase, a Go (Fiber) API with Asynq queues, and a four-server Docker Swarm cluster. In open source, I have analyzer and linter changes merged into the Dart SDK after review by Google's Dart team. I have published more than 20 packages on pub.dev, most of them native bindings to C/C++ libraries. I also have fixes merged into flutter/flutter, dart-lang/native, grpc-go and drift. How I work: I break the work into phases up front and finish each phase with a testable build and a short delivery note. The source code is handed over to you. If you like, I can also take care of the store release and server setup.

Experience

Flutter Developer Uzman Adres (FugaSoft) Mar 2022 – Present
The FugaSoft sales and checkout (POS) system developed for retail stores in Germany. I am responsible for the local data layer on SQLite/Drift and the offline sync that keeps sales going when the internet goes down. I integrated card payment terminals via the ZVT protocol and the TSE signature hardware. The single codebase runs on Android, iOS, Windows, macOS and Linux and processes more than 100,000 transactions a day.
Full Stack Developer (part-time, remote) Junius Tech Jun 2023 – Feb 2025
I led mobile development of the Dorse weighbridge and logistics app on Google Play. The live location of more than 5,000 vehicles streams via WebSocket; Google Maps on Android and web, Apple Maps on iOS. As mobile team lead, I handled coordination with the backend and QA teams as well as store releases.
Flutter Developer (part-time, remote) Promob TR Oct 2022 – Jun 2024
I developed the Aydınlık E-Gazete (App Store, Google Play) and Bilim ve Ütopya E-Dergi (App Store) apps; both are built with MVVM on a shared Dio client, and downloaded issues can be read offline. I delivered Galvapedia end to end: the Flutter app, the desktop admin panel and the Node.js/MongoDB API.

Education

Burdur Mehmet Akif Ersoy Üniversitesi Yazılım Mühendisliği (Lisans) 2021 – 2025

Portfolio

Dorse — weighbridge and logistics tracking play.google.com
Weighbridge and logistics tracking app. I led mobile development; the live location of more than 5,000 vehicles is shown on a map via WebSocket.
Aydınlık E-Gazete apps.apple.com
Daily newspaper reading app (App Store and Google Play). Flutter, MVVM; downloaded issues can be read offline.
Bilim ve Ütopya E-Dergi apps.apple.com
Monthly science magazine reading app (App Store). Flutter, shared Dio client, offline reading.
Galvapedia apps.apple.com
Flutter app, desktop admin panel and the Node.js/MongoDB API serving both; delivered end to end.
My pub.dev packages pub.dev
23 Dart/Flutter packages I have published on pub.dev; most are native bindings to C/C++ libraries (RE2, simdjson, BLAKE3).
Open source contributions (GitHub) github.com
Analyzer and linter changes merged into the Dart SDK; fixes merged into flutter/flutter, dart-lang/native, grpc-go and drift.