Data Science · AI · Buxtehude

Tim Lietzow

Data science, software and web design from Buxtehude. I help local businesses solve their problems with technology.

Cherry blossom made of data points Scatter plot of 409 points that together form a five-petalled cherry blossom.
fig. 1 — 409 data points, one cherry blossom

Data Science & Analytics

Turn data into insight — analyses, forecasts, dashboards and AI-assisted summaries. So you can make well-founded decisions.

Automation

Get recurring tasks done by script. Merge data, generate reports, connect systems.

Web Design

Websites like this one: a design of their own instead of a template, fast, no cookie banner, and just as good on a phone as on a desktop.

I study computer science in a triple-track programme, am doing my apprenticeship as an application developer alongside it, and work in the AI team at my company. Data science is my main field, but if you need a website, I will build that too.

My clients are, hopefully soon including you, businesses in the region and beyond: trades, restaurants and hotels, service providers and medical practices. Deliberately on a small scale, alongside my studies and apprenticeship.

fig. 2 — forward pass: 71 neurons, 266 connections, rendered in Blender
Demand forecasting · made in Buxtehude

“Ick bün all hier.”

The fairy tale of the hare and the hedgehog is set on the heath near Buxtehude: the hare runs himself ragged, and every time he reaches the end of the furrow, the hedgehog is already there — Ick bün all hier, Low German for “I’m already here”.

That is exactly what a good forecast does. With demand forecasting I read from your sales, booking or order data what you will need in the coming weeks — so you are already there before demand arrives, instead of chasing it.

  • How many bread rolls on Saturday?
  • How many rooms will be booked in May?
  • How much material does the next building site need?
Try it yourself: the bread roll forecast →
Demand forecast as the hare and the hedgehog Line chart: the solid line shows past sales up to today, where the hare is running. A dashed forecast with an uncertainty band continues nine weeks ahead; at its end the hedgehog is already waiting and says: Ick bün all hier (I am already here).
fig. 3 — sample data: actual sales up to today, forecast for nine weeks
Tim Lietzow
About me

Moin, I am Tim.

Born in Dorsten, raised in Gahlen, a small village in North Rhine-Westphalia. I moved north for my studies, and Buxtehude has been my base ever since. Growing up in a village, I am used to people knowing each other and talking directly. That is how I work, too.

My projects usually start with an idea. I quickly turn it into a first attempt: not perfect, but a proof of concept that shows whether the idea holds up. Data science is my focus, but I still enjoy building websites. That variety is exactly what I like.

Tell me about your idea.

Send me a short message about what you need. I will get back to you promptly.

Address
Hauptstraße 9, 21614 Buxtehude

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