Stefan Wille



Stefan Wille


Hey. I am Stefan, a freelance software developer with more than 25 years of professional experience, based in Berlin.


Are you looking for help? I'm available for contract work with React.js, Node.js, and TypeScript.

Experience

I have spent the last 7 years working with React.js, Node.js, and TypeScript for enterprise scale customers and startups. Before that, I worked with Ruby on Rails, Java, and C++.

I have more than 25 years of professional experience. I have co-founded two companies, worked as a CTO, team lead, and lead developer, and written two books in my field. I have coached individuals and teams. I am also a Certified Scrum Master.

Skills

TypeScript
TypeScript
JavaScript
JavaScript
React.js
React.js
Node.js
Node.js
GraphQL
GraphQL
Scrum
Scrum

Customers

Here are some of the customers I have worked for:
  • Zalando
  • O2
  • HRS
  • SAP
  • Movinga
  • Kühne + Nagel
  • Reuters
  • Fyber
  • Postbank
  • HERE
  • Intersection
  • Commerzbank

Testimonials

I have some customer testimonials on LinkedIn.

Code

See some of my code on GitHub:

GitHubGitHub

Availability

Starting 1. April 2024 I will be available for React/Node.js/TypeScript work as a contractor, remotely or in Berlin.

Hire me or check out my resume or my GitHub account.