Open to AI Engineer / Data Scientist roles
AI Engineer · Data Scientist - Bonn, Germany
I build AI systems - and explain how they work, from first principles.
M.Sc. Computer Science (Universität Bonn). Currently shipping LLM products and MLOps in Berlin. In my spare time I write deep-dive guides that rebuild the AI stack from the ground up.
- guide series
- 9
- deep-dive posts
- 160
- of material
- 10h+
01 / Learning from first principles
Deep guides, built from the ground up.
No hand-waving, no black boxes. Each series rebuilds a tool or concept from its primitives - the material I wish I had when I started.
Foundations
Python from First Principles
Syntax, the data model and the interpreter - why Python behaves the way it does.
20 posts · 1h 00m read
Foundations
Math for AI from First Principles
Linear algebra, calculus and probability, derived for the models you'll actually build.
10 posts · 56m read
Foundations
Git from First Principles
Commits, branches and history - version control without the magic.
16 posts · 55m read
AI Systems Infrastructure
Docker from First Principles
Namespaces, cgroups and images - what a container really is under the hood.
18 posts · 59m read
AI Systems Infrastructure
Cloud Computing for AI Systems from First Principles
Compute, storage and networking - the cloud an ML system actually needs.
19 posts · 1h 27m read
AI Systems Infrastructure
Data Engineering for AI Systems from First Principles
Pipelines, orchestration and warehouse patterns for real ML workloads.
21 posts · 1h 35m read
AI Systems Infrastructure
Cybersecurity for AI Systems from First Principles
Threat models, secrets management and hardening for models in production.
19 posts · 1h 28m read
AI Models
Transformers from First Principles
Attention from scratch - tokenizers to training loops, in code you wrote yourself.
18 posts · 1h 19m read
Languages
German from First Principles
Grammar and vocabulary built from structure up - a machine learning engineer learns B1.
Living document
02 / Writing
Notes from the lab.
- May 2025 · 8 min readStop unit-testing your pipelines. Property-test them.Data Engineering · 8 min read
- Apr 2025 · 12 min readWhat I learned rebuilding attention in one weekendAI Models · 12 min read
- Mar 2025 · 6 min readB1 in six months: German grammar that compilesLanguages · 6 min read
03 / About
Engineer by day, teacher by nature.
I’m an AI engineer and data scientist based in Bonn, Germany. I hold a master’s degree in computer science from Universität Bonn, where I focused on statistical learning and NLP. Since then I’ve moved from forecasting pipelines to production LLM systems - and I learn best by rebuilding things from scratch, which is exactly what this site documents.
- 2023 - Now
AI Engineer · Berlin, DE
LLM products, RAG pipelines and MLOps at a fintech scale-up.
- 2021 - 2023
Data Scientist · Cologne, DE
Demand forecasting and experimentation at a retail group.
- 2019 - 2021
Research Assistant · Universität Bonn
Statistical learning in the NLP group, M.Sc. Computer Science.
04 / Contact
Looking for someone who ships - and can explain what they shipped.
I'm open to AI engineer and data scientist roles across Germany - remote or hybrid. The guides above are the fastest way to see how I think.