Founder & CEO of lenne.Tech GmbH
Building modern web applications from the heart of the Sauerland — with passion, precision and a strong team.
I'm a full-stack developer, architect and entrepreneur with 15+ years of experience turning ideas into reliable, maintainable software. In 2020 I founded lenne.Tech GmbH — a team of developers, consultants and designers that helps companies digitalize their business with custom solutions built to last.
I enjoy owning a project end-to-end: from the first whiteboard sketch and technical concept, through architecture and implementation, all the way to launch and long-term evolution. My sweet spot is combining clean TypeScript architecture, thoughtful UX, and honest, transparent collaboration.
Looking for a reliable partner for your next digital product? I'd love to hear from you. Whether it's a greenfield SaaS, a complex data-driven platform, or scaling up an existing team — let's talk.
- Full-Stack Development — TypeScript end-to-end, from database to UI
- Software Architecture — modular, testable, and built to grow with your business
- Product & Project Management — agile delivery, transparent communication, zero surprises
- Training & Mentoring — developer workshops and knowledge transfer via lenne.Learning
- Team Augmentation — embedding into existing engineering teams to accelerate delivery
Languages & Core
 TypeScript |
 JavaScript |
 Node.js |
Frontend
 Vue.js |
 Nuxt |
 Angular |
 Tailwind |
 SASS |
Backend
 NestJS |
 Express |
 GraphQL |
Data & Infrastructure
 MongoDB |
 PostgreSQL |
 MySQL |
 Docker |
 GitLab |
Testing & Quality
 Vitest |
 Jest |
 Playwright |
 Cypress |
I maintain and contribute to a growing set of open-source tools and starters that power our daily work and are freely available for the community:
| Project | Description | Latest | Last Commit |
|---|---|---|---|
| nest-server | Modern, fast Node.js framework built on NestJS — GraphQL + REST, MongoDB, auth & CRUD out of the box |  |
 |
| nuxt-extensions | Nuxt 4 module with Better-Auth, Passkey/WebAuthn, 2FA, TUS uploads and typed SDK auto-generation |  |
 |
| cli | CLI for scaffolding fullstack projects, servers and modules in seconds (lt fullstack init) |
 |
 |
| nest-server-starter | Production-ready starter kit for nest-server — your backend in under a minute | — |  |
| nuxt-base-starter | Opinionated Nuxt 4 starter with auth, SSR, Tailwind and typed API integration | — |  |
| gluegun-menu | Interactive menu helper for gluegun-based CLIs |  |
 |
| deploy.party | Simple, self-hostable deployment tool for your applications | — |  |
| cli-starter | Starter for building your own CLI with gluegun + helpers | — |  |
Explore all projects → github.com/lenneTech
A small selection of recent projects I designed and delivered with the lenne.Tech team:
- RegioKonneX — Regional networking platform for Volksbank in Südwestfalen (Nuxt, NestJS, MongoDB)
- EVA — Certification platform for ecosystem certificates for Ecosystem Value Association (Angular, NestJS, PostgreSQL)
- Drilling Machine Control — Web-based control and data analysis for TRACTO TECHNIK (Angular)
- 3D Dashboard Charts — High-performance frequency analysis for ACHENBACH (Angular, Highcharts)
- Matrix Chat Platform — Extension of an enterprise chat system for d.velop AG (Node.js, Matrix, Keycloak)
- Easy Order — Digital menu & ordering SaaS for gastronomy (NestJS, MongoDB, GraphQL)
- forgecloud — Website builder SaaS for industrial companies (NestJS, MongoDB)
More case studies → lenne.tech/kundenerfolge
I'm always happy to talk — about ambitious product ideas, open-source collaboration, architectural challenges, or teaching opportunities.
Website: lenne.tech
Email: [email protected]
Company: lenne.Tech GmbH · Lennestadt, Germany
"Passion for code. Focus on people. Built to last."