Hi, I'm René

I am a Freelance Software Developer

I build software solutions

I build digital products

I build user interfaces

I build backend systems

I build browser extensions

Available for freelance work

About

I am a Freelance Software Developer based in Hamburg, Germany, specializing in web and cloud applications. I have delivered projects across various industries, spanning backend systems and APIs, frontends, and cloud infrastructure. Maintainable code, thoughtful architecture, and scalable systems are at the core of my work.

AI-assisted development and agentic coding tools are an integral part of my workflow. They accelerate implementation, allowing me to deliver faster while maintaining responsibility for architecture, code quality, and technical decisions.

Skills

With deep expertise in backend, frontend, infrastructure, and software architecture development, I offer solutions that combine performance, security, and scalability. Modern technologies and AI-assisted workflows are the foundation upon which I build custom applications that meet the individual needs of each project.

Infrastructure
  • AWS
  • Google Cloud
  • Docker
  • CI/CD
Software Architecture
  • Certified software architect
  • Domain Driven Design (DDD)
  • High focus on scalability
  • Clean Code
  • Functional Programming
  • Object-oriented Programming (OOP)
Workflow
  • Git
  • Agile methodologies
  • Familiar with a wide range of Atlassian tools
AI-Assisted Development
  • Agentic coding
  • Custom agent skills and commands
  • Delegating and reviewing agent output
  • AI-assisted refactoring and code review
  • Keeping AI output aligned with clean-code standards

Contact

Do you need help with the development of a web or cloud application? Or would you like to optimize your existing software? Get in touch with me! Together, we will find the right solution for your requirements.

Get in touch