Lead project

MealMate: Protein Meal Plan
Plan your meals around how much protein you actually need. Built in Flutter with Firebase, rated 4.8 on the App Store, and still live.
View projectSelected work
Websites I designed and built for clients, brand included, then handed over. And my own apps, built with Flutter and Firebase.
Client work
Consultants, coaches, advisors: one person whose reputation is the product. I design and build the whole thing: identity and logo through to a running site with a CMS, a blog and a newsletter behind it, handed over so you can keep changing it without me.
Logo, palette, type and motion: the identity before the site.
Pages, blog and newsletter in a CMS with your name on it.
Security, speed and correctness, checked automatically.
A codebase where you can change copy and colour without me.
In practice
The complete web presence for Dr. Peter von Wartenberg, who advises executives and organisations on leadership. Brand first: the “Rising Arcs” mark and the claim “Learn to Serve & Protect”, then a bilingual site built to carry them: Next.js and Tailwind, Payload as the CMS on Neon Postgres, Brevo behind the newsletter, Vercel for delivery. Pages, blog and mailing list belong to the client, and the release pipeline keeps a cosmetic change from breaking anything underneath it.
Scope
Stack
System
A model in a notebook helps nobody. My day job is the platform that gets models into production at Sixt and keeps them there: monitored, governed and able to grow.
the training, deployment and monitoring path a team uses daily, not a single pipeline that works once
taking a model that runs on a laptop and making it something an on-call engineer can be woken up for
architecture, tooling, and the handful of decisions that are expensive to reverse
Lead project

Plan your meals around how much protein you actually need. Built in Flutter with Firebase, rated 4.8 on the App Store, and still live.
View project



Also shipped
A workout log for the gym: exercises, sets, goals and progress over time. Built in Flutter, with Firebase keeping it in sync.
No longer published
An expense tracker that sorts spending into categories and shows, per category, how you are doing against your budget.
No longer published
A spending app that asks one question before you buy: do you actually want this? Prompts and habit tracking instead of after-the-fact budgets.
No longer published
Tell me what you need and roughly when. I'll be straight with you about whether I'm the right person for it.