Martin Haferanke. One contact, from design to operation.
A software developer from Brandenburg an der Havel, Germany. I advise on AI, design the systems and run them myself afterwards.

I'm Martin Haferanke, a software developer from Brandenburg an der Havel, Germany. With me, you talk directly to the person who designs, builds and runs your system, from the first call to day-to-day operation.
That means short paths, clear answers, no handovers between sales, project management and development. And if I think an idea won't pay off, I'll tell you before it costs you money.
What did I do before this?
Ten years of teaching and project leadership at a university, development for businesses and startups in between, Klarbeleg since 2026.
- 2026
Software startup for marketplace sellers. Three months of RAG integration, quality evaluation of AI answers and architecture for automated document processing.
Takeaway: an AI answer without a source is worthless. That is why Klarbeleg always shows the source.
- 2023 to 2025
MSNP, Oldenburg. XR and full-stack development: drone and LiDAR data turned into 3D models for real estate clients.
Takeaway: data pipelines that run in production, not just in the demo.
- 2023
Institute for Innovation and Information Management, Werder (Havel). IT project manager: introducing VR and AR in small businesses, plus an AI tool for analysing social media data.
Takeaway: how a ten-person business makes decisions, and that technology only counts there if it runs on Monday morning.
- 2015 to 2025
Brandenburg University of Applied Sciences.Ten years teaching XR and multimedia, before that leading the ESF-funded "WissensChecks" projects: a learning platform built with Node.js, Angular and MongoDB.
Takeaway: preparing knowledge so others can use it without me, and documenting funded projects properly.
- Education
- Computer Science (B.Sc.) and Digital Media (M.Sc.) at Brandenburg University of Applied Sciences, AI Engineering at Masterschool, 2025 to 2026.
Publicly visible work: Bringshops (corporate identity, landing page, shop system design) and cima-immobilien.de (web design, animations, SEO and hosting as a complete project).
How do I work?
Direct and honest: you get a clear statement instead of a polished pitch, even when the answer is “this won't pay off for you”.
- No handovers
- Sales, project management and development simply aren't split up on my end. Whoever talks to me talks to the person who then also writes the code, tests it and runs it afterwards. That shortens the path and avoids the “a colleague handles that” runaround.
- An honest assessment before it costs money
- If I think an idea won't pay off, I tell you beforehand. That isn't a marketing line, it is the basis of every intro call: an honest assessment is worth more than a contract that doesn't work out afterwards.
- Also mid-project
- If it turns out along the way that a piece of it isn't paying off, I say so, instead of quietly building it out further.
What do I build with?
With open tools your IT lead knows and can check before signing off.
- Languages and tools
- TypeScript and Node.js for applications, Python for document processing and validation scripts. Text recognition locally with Tesseract, output as PDF/A with a text layer.
- Language models
- Open models such as Mistral, Llama or Qwen, run at a German provider in Berlin, or locally on your premises if you prefer. Every answer points to the passage it comes from. No training on your data.
- Operations
- Docker containers on servers at Hetzner in Germany or on your own hardware. Encrypted transfer, daily backups, updates by me. Access for your team only.
Where am I based?
In Brandenburg an der Havel, Germany, reachable from there for businesses in the region and across the country.
An intro call only needs video or phone, wherever you are. On-site appointments in Brandenburg an der Havel, Potsdam and Berlin come with no travel costs, for a scanning day just as much as for training. Other locations by arrangement.
- Lortzingstraße 14, 14772 Brandenburg an der Havel, Germany
- martin@klarbeleg.eu
- +49 1522 9548976
A call or an e-mail is enough to find a time. There is no central office and no hold music in between.
Intro call: 30 minutes, free of charge.
You tell me where your company loses time. I tell you whether and how it can be solved.
