Profile
I've been building for the web since 2000. I've seen frameworks come and go. React stuck. I've used it in 20+ projects over the last decade.
I'm not just a developer. I've founded companies, led teams, and shipped products from zero to launch. I wrote a 320-page book on React. When I join your team, you get someone who understands not just code, but products.
I work with companies of all sizes: startups that need to move fast, corporations that need someone who can navigate complexity, and everyone in between. I've done Tech Lead, CTO, and Senior Developer roles. I adapt to what you need.
If you want to learn more, please find my full CV here
Professional Experience
| since 2013-03 | CEO / Founder Wiremore GmbH, Berlin |
| 2012-02– 2012-12 | Co-Founder / CTO ubiiqu GmbH, Berlin |
| 2011-11– 2012-01 | IT Consultant / Frontend Developer itemis AG, Lünen |
| 2010-10– 2011-10 | Software Developer Sevenval GmbH, Cologne |
| 2008-05– 2010-09 | Co-Founder / CTO Mobilistics GmbH, Dortmund |
| 2006-11– 2008-04 | Full Stack Web Developer Raphael GmbH, Dortmund |
| 2003-11– 2005-05 | Apprentice, Digital Media Designer/Developer Parallaxis GbR, Dortmund |
| 2002-08– 2003-10 | Apprentice, Digital Media Designer/Developer Pronetics oHG, Dortmund |
| 2000-12– 2002-08 | Web Development Intern Pronetics oHG, Dortmund |
Education
| 2005-08– 2006-05 | Advanced Technical College Certificate Fritz-Henßler-Berufskolleg, Dortmund |
| 2006-10– 2008-09 | Bachelor of Media Engineering (Chamber of Industry and Commerce) IHK Dortmund |
| 2008-10– 2015-03 | Avocational Study Business Administration (w/o degree) University of Applied Sciences for Economy and Management, Dortmund |
Qualifications
- Digital Media Designer (Apprenticeship)
- Media Engineer (Chamber of Industry and Commerce)
- Certificate to instruct apprentices (Chamber of Industry and Commerce)
Skills
Primary
Technical: JavaScript, TypeScript, React, React Native, Next.js, Node.js, Redux, State Management, Jest, Unit Testing, React Testing Library, Storybook, Component Libraries, Design Systems, HTML5, CSS3, Responsive Web Design, Mobile-First Development, Internationalization (i18n), Web Accessibility (WCAG), Single Page Applications (SPA), Server-Side Rendering (SSR), Progressive Web Apps (PWA)
Business: Technical Leadership, Engineering Management, Frontend Architecture, Software Architecture, German (native), English (fluent)
Secondary
Technical: Expo, React Hook Form, Zod, Form Validation, Tailwind CSS, CSS-in-JS, Styled Components, Cypress, Playwright, End-to-End Testing, Test-Driven Development (TDD), GraphQL, REST APIs, API Integration, Webpack, Vite, Build Tools, Git, Version Control, Supabase, PostgreSQL, Database Design, AWS, Cloud Services, Authentication (OAuth, JWT), Performance Optimization, Code Review
Business: Team Leadership, Cross-Functional Collaboration, Agile Methodology, Scrum, Kanban, Sprint Planning, Technical Hiring, Technical Interviews, Developer Mentoring, Knowledge Transfer, Code Quality Standards
Familiar
Technical: Deno, Swift, iOS Development, Docker, Containerization, CI/CD Pipelines, GitHub Actions, Figma, UI/UX Collaboration
Business: Product Management, Stakeholder Management, Requirements Gathering, Technical Documentation, Project Planning