Freelance Fullstack Developer from Hamburg — building things as GrossByte since 2012.
I've been writing code since 2005 — from complex payment systems in the gaming industry to web apps and platforms across every sector. I work remotely, on an hourly basis, solo or as a team extension. AI makes me faster and more productive, but the craft behind it stays mine.
Primary Node.js · TypeScript · Vue.js · Nuxt · AdonisJS · Tailwind CSS
Secondary PHP · Laravel · MySQL · PostgreSQL · Ionic · Capacitor · Docker · AWS
Mobile Flutter · Dart (learning)
AI & Tooling Claude Code CLI · Spec-Driven Development · OpenAI API
| Client | Role | Stack |
|---|---|---|
| IaS Ideas & Solutions | Frontend Developer | Vue.js · TypeScript · Nuxt |
| auteon | Frontend Developer | Vue.js · TypeScript · Tailwind CSS |
| ART-DECOR Open Tools | Frontend Developer | Vue.js · Vuetify · React.js |
Zutato — Food tracking & community platform
Monorepo with Nuxt admin, AdonisJS backend and Flutter mobile app.
Features: food diary, recipe forking (GitHub-style), gamification, smart estimation for micronutrients.
Migrena — Minimalist migraine tracker for iOS
Flutter app with HealthKit integration — no account, no cloud, full data sovereignty.
Features: one-tap attack tracking, heatmap calendar, statistics, Apple Health sync, trigger tags.
- 🏠 Based in Hamburg, Germany
- 💻 20+ years of experience, freelancing full-time since 2018
- 🤖 AI-powered. Human-driven. Coffee-fueled.
- 🐱 Owned by a Bengal cat named Ori
I reply within 24 hours.