Freelancer profile translated to English.
Back to original languageAbout Julien
I develop mobile apps that work. From the initial idea to the launch in the app store.
With over 3 years of experience in Flutter and cross-platform development, I build scalable, performant apps for SaaS products, B2B tools, and custom automation solutions. My focus is on clean code, well-thought-out architecture, and a smooth deployment process.
What sets me apart from other developers: I don't just think in features, but in solutions and accompany you during the conception phase. Whether you need a new app from scratch, want to scale an existing project, or require complex backend integration. I find the direct path to the goal.
My service offering:
- Flutter development for iOS & Android from a single source
- Full-service: from concept & UX consulting to deployment & app store publishing
- Backend integration & API connection
- UI design
- Automations & bots (e.g. Telegram bots, workflow automation)
- Special solutions for demanding customer projects
I work in a structured way, communicate clearly, and meet deadlines. If you are looking for a developer who thinks along, advises, and takes responsibility, then let's talk.
English
Fluent
German
Native or bilingual
Remote only
Primarily works remotely
Experience
- Heads in Jars ConsultingTelegram Bot - Automated Order ProcessingDecember 2022 - April 2023 (4 months)Technologies: Rust, SQLDevelopment of a Telegram bot for fully automated generation of orders for the food bank in the USA. 4 months of development, direct integration into existing database structures
- Heads in Jars ConsultingInventory & Scanner App Suite - Foodnetwork USADecember 2022 - Today (3 years and 7 months)Technologies: Flutter, Dart, SQL, Firebase, AdMobFor a large food bank in the USA, I developed a complete app suite:
- Scanner app for agency employees for corruption prevention, work optimization, and deregulation
- Customer app for unbureaucratic data collection and process optimization
- Admin tool for specific QR code creation and database synchronization via Firebase to MySQL
Full-service: Co-conception, development, deployment on iOS & Android. - MehrereFreelance Projects via FiverrOctober 2022 - June 2023 (8 months)Technologies: Rust, Python, Flutter/DartIndependent implementation of software projects for international private clients and companies - with 5-star ratings.
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Education
- Apprenticeship: IT specialist application developmentnetzfactor GmbH2026Betriebliche Ausbildung mit Fokus auf nativer App-Entwicklung in Java und Swift. Parallel dazu Umsetzung realer Kundenprojekte - darunter die Neuentwicklung der Löwenkalender-iOS-App.
- Applied Computer Science (Bachelor, without degree)Hochschule Ruhr West, University in Applied Computer Science2023Studium mit Kooperation beim Hochschul-Rennteam eMotionRacing. Fundierte Kenntnisse in C, C++, Java sowie GUI-Entwicklung mit dem Qt-Framework