Area
AI
There is a wide gap between having tried ChatGPT and having put AI into production somewhere it costs money when it answers wrong.
I build AI into existing systems: support that draws on your own documentation, agents that handle a fixed piece of routine work, product data that gets written and maintained automatically.
What I am asked to do most often is clean up after a pilot that never went anywhere. The prototype worked fine on ten examples and fell apart on a thousand. That is a different job from building the prototype.
- Same-day reply
- Fixed price
- No lock-in
Services
Specific services
AI development that actually ships. RAG, function calling, evaluation and monitoring built into the systems you already run.
Read moreAI implementation that gets used afterwards. We start with one area of work, measure whether it helps, and expand from there.
Read moreAI advice without the sales pitch. What is worth doing at your company, what it costs, and what you can safely skip.
Read moreAutomating the routine work that gets done every day. Documents, data, email and lookups across systems.
Read more
Process
How it works
Four steps. You know what happens when, and you can stop after any of them.
- 01
Find the task
We look for the work that gets done many times a week, follows a pattern and annoys the people doing it. That is where the first win is.
- 02
Measure the baseline
How long does it take today and how often does it happen. Without that number you cannot say afterwards whether anything improved, and it becomes one gut feeling against another.
- 03
Build and evaluate
I build a test set of real examples early and measure against it every time the prompt or model changes. It is the single thing most often missing in projects I take over.
- 04
Put it into production
Into the systems people already work in, with logging on everything and a way to switch it off. Plus an agreement on who owns it once I am gone.

Who does the work
I am the person you will be working with
My name is Mikkel and I have been building for the web since 2010. There is no project manager in between, and you will not get a junior on the job because the senior was busy. What you agree is what gets built, and I am the one building it.
Day to day I am a partner at Bigum&Co, and I have worked on more than 400 projects across ecommerce, pharma, construction and the public sector. Call or write — I usually reply the same day, and I will say straight away if the job is not a fit.
- Experience
- 16 yrs
- Projects
- 400+
- Rating
- 5.0
- Reply time
- Same day
Reviews
What people say about me
Mikkel is seriously good, helpful, lightning fast to reply — and on top of that he is a nice person.
Trine Handskemager(translated from Danish) Mikkel delivered competent, professional work setting up my website. Everything ran quickly and without a hitch.
Sisse Find(translated from Danish) Mikkel Tschentscher is my lifeline when something is urgent and nobody else can work it out.
Torben Wiese(translated from Danish)
Brands I have worked with
A selection. Some freelance, some through agencies, some across several years.
