Willi Krappen

Curriculum Vitae

Background, education and skills.

Fullstack Product Engineer

Willi Krappen

Münster

Education

2015–2017

Media Informatics — TU Dresden

2012

Abitur (German university qualification) — final grade 1.8

Experience

2021–2024

Co-founder & technical lead — Lemonverse GmbH (Münster)

Co-founded a high-end agency for VR, AR and mixed-reality applications focused on industrial training (hands-on trainings for machine operation, maintenance, safety). Responsible for stack choice, build pipeline, engine work (Three.js / React Three Fiber + 360°), the shipped learning-progress dashboard, and on-site hardware setup at customer locations. Direct stakeholder contact from requirements workshops through to training internal trainers.

2017–2020

Frontend developer — OPOX GmbH (Münster)

Three years of full-time employment as a frontend developer at a digital agency. Production frontends with React and TypeScript for industry and public-sector clients — including the City of Dresden and BOSCH. Work in mixed Scrum teams, stakeholder communication on sprint cadences, requirements around accessibility, performance and maintainability.

  • Stadt Dresden
  • BOSCH

seit 2013

Freelance developer

Additional client engagements

  • Pfennigturm GmbH
  • Coilinter GmbH
  • COBE GmbH
  • parsQube GmbH
  • High Lights GmbH
  • Drogenhilfe Deutschland
  • INDRO e.V.

2012

Internship — Onsult IT Services

Vita

Skills

Frontend

  • JS/TS
  • React / Next.js
  • HTML/CSS
  • Tailwind / shadcn
  • three.js / R3F

Backend

  • JS/TS/Node
  • Express
  • SQL / Postgres / MongoDB
  • ORM (Prisma / Drizzle / …)
  • Python
  • PHP

Tools & skills

  • Git
  • Jira / Scrum
  • UNIX / Linux Serveradministration
  • Windsurf / Cursor / Claude

More

Languages

  • GermanNative
  • EnglishC2
  • FrenchA2

Driving licence

Class B

Misc

3D printing / CADEDA / embedded programmingPCB designDrone piloting (cine / race)PhotoshopDaVinci Resolve