Freelancer profile translated to English.
Back to original languageAbout Yassine
Need a modern web app, a booking system, or an API that actually works? I've got you covered.
I'm a full-stack developer based in Aachen, Germany, specialising in Java, Spring Boot, and React/Next.js. I build scalable, production-ready applications — from database architecture to polished UI. No throwaway code; software that runs.
What I deliver:
→ Full-stack web apps (React/Next.js + Spring Boot)
→ REST APIs with JWT auth and role-based access control
→ Booking and management systems with conflict prevention
→ Database design with PostgreSQL and MongoDB
→ Deployment on Vercel, Render, and Docker
Currently live: a booking platform for a client in the events industry — deployed, in production, real users. See my work on GitHub: github.com/yassineao
I'm fluent in German, English, French, and Arabic — and I deliver on time.
French
Native or bilingual
German
Fluent
English
Fluent
Arabic
Native or bilingual
Can work on-site
Aachen (up to 50km)
Experience
- Dakka – Band-Buchungsplattform für Nassim / Dakka Marrakesch (Freelance)Full-Stack DeveloperFebruary 2026 - Today (6 months)Three-app system deployed in production: public booking page, admin dashboard, and REST API, each deployed independently on Vercel.
- GuitarIO – Gitarren-LernplattformFull-Stack DeveloperSeptember 2025 - December 2025 (3 months)SDK Docker• • Live application guitar-io.vercel.app: Lessons, chord diagrams, real-time tab playback via AlphaTab Google Gemini.• • Dual-stack architecture: Next.js frontend with separate, Dockerized Spring Boot auth service – communication via HTTP with JWT tokens.• • Full test coverage: Backend unit tests with Mockito; frontend component tests with Jest and React Testing Library.
- Movierito – TMDB-Film-EntdeckungsappFull-Stack DeveloperOctober 2024 - January 2025 (3 months)Stack: React 18• · Express.js◦ · MongoDB◦ · JWT◦ · GSAP◦ · TMDB API• • End-to-end movie platform: JWT-authenticated accounts, favorites, trailer playback, and actresses across 11 routes – submitted as a graded practical project at FH Aachen.• • Optimized bundle: Production build of 85.6kB JS (gzip-compressed) – demonstrates awareness of frontend performance.
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Education
- B.Sc. Applied SciencesFH Aachen2025B.Sc. Angewandte
- B.Sc. Computer ScienceUniversity Moulay Ismail2021B.Sc. Informatik