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omrankallel

Omran K.

@omrankallel

Flutter Developer, iOS and Android Mobile Apps

Tunisia
Arabic, French, English
About me
I build Flutter and native Android apps that reach production, not just prototypes. In 8 years I have shipped 15+ mobile apps for government, healthcare, pharma and consumer clients. I am the sole mobile developer of a white-label platform used by several French cities, and a former Flutter Tech Lead. Skills: Flutter, Dart, Android/Java, Clean Architecture, Riverpod, GetX, Firebase, REST APIs, SQLite, WebSockets, and full App Store / Google Play publishing. I write clean, stable code and communicate clearly.... Read more

Skills

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omrankallel
Omran K.
Offline • 

See my services

Cross-Platform Development
I will develop your flutter mobile app for ios and android
From$250 / projectMore details
Mobile App Bug Fixes
I will fix bugs and add new features to your flutter app
From$40 / projectMore details

Portfolio

Work experience

STRATIS

Team Lead Mobile, Flutter Developer

STRATIS

Sep 2024 - Present • 2 yrs 2 mos

Sole mobile developer of Applizen, a white-label app platform used by several French cities. I own the full mobile side: architecture, module development, real-time preview tooling, client app configuration and App Store / Google Play releases. Stack: Flutter, Clean Architecture, Riverpod, GetX. Full-time from September 2024, freelance since October 2025.

ZETABOX

Tech Lead, Flutter Development

ZETABOX

Feb 2022 - Aug 2024 • 2 yrs 6 mos

Led architecture, technical specification and end-to-end development of Flutter mobile projects. Conducted code reviews and mentored new developers. Built and tested native modules (unit, widget and integration tests), integrated third-party SDKs, planned and estimated workload, and took part in Agile ceremonies with the Scrum Master and Product Owner.

Clinisys

Mobile Developer, Flutter and Java

Clinisys

Oct 2018 - Jan 2022 • 3 yrs 3 mos

Developed mobile applications for the healthcare sector with Flutter and Java. Worked on every phase of the projects: requirements gathering with clients, technical specifications, design and development. Wrote unit, widget and integration tests, organized acceptance testing against the specifications, and wrote technical documentation and user manuals for support teams.