Description

Are you building a web application or SaaS product and need a senior developer who can own both frontend and backend — without handholding?

I specialise in React, Next.js, TypeScript and Node.js, with deep experience in cloud-native AWS architectures (Lambda, CDK, API Gateway, DynamoDB), headless CMS setups (Storyblok, Strapi, Sanity, Shopify) and database design (PostgreSQL, Redis, Supabase).

In 8+ years of freelance work I have:

→ Built and maintained B2B SaaS platforms serving 1,000+ users

→ Reduced page load times by 26% for 1,600 monthly active users

→ Cut code review issues by 23% by introducing modern tooling across 5 repos

→ Migrated 1,000+ WordPress posts to a headless Strapi setup

→ Architected microfrontend systems using SingleSPA and Turborepo

I work remotely, communicate proactively, and deliver clean, maintainable code. I'm equally comfortable joining an existing team or owning a project from scratch.

📅 Available now — book a call:

Languages

English
Native or bilingual
German
Native or bilingual
Spanish
Basic

Workplace preferences

Remote only

Primarily works remotely

AIThink UG
Senior Full Stack Developer
DIGITAL AND IT
December 2025 - Today (6 months)
Hamburg, Germany
Ongoing part-time freelance engagement on an AI-powered SaaS platform for video bots. Responsible for frontend and backend maintenance, feature development, and shipping new functionality to production. Built and deployed an embeddable AI avatar chat plugin integrated directly into the platform. Working closely with the product team in an agile setup. Stack: Vue 3, NestJS.
VueJS Node.js React.js React.js
Rosypet
Senior Full Stack Developer
DIGITAL AND IT
October 2025 - Today (8 months)
Hamburg, Germany
Ongoing side project building a veterinary and pet owner portal from scratch. Features include real-time video consultations, live chat, and a Progressive Web App (PWA) for mobile access. Fully responsible for frontend architecture, implementation, and deployment. Iterative delivery in a fast-moving environment. Stack: Vue 3, SignalIO.
VueJS Node.js
GoSpendl – Personal Project (gospendl.com)
Senior Full Stack Developer
DIGITAL AND IT
May 2025 - November 2025 (6 months)
Hamburg, Germany
Personal project: designed and built a Bitcoin price comparison platform from scratch, enabling users to find products payable in Bitcoin or at a discount. Engineered a complex automated web crawling pipeline using Crawl4AI and Python to aggregate and index product data at scale. Integrated Algolia for fast full-text product search. Fully independent end-to-end delivery from architecture to deployment. Stack: Vue 3, Nuxt 4, Express.js, Python, Crawl4AI, Algolia.
VueJS VueJS VueJS VueJS React.js