Building systems.Breaking language models.

SERVICES

Websites & landing pages

A page that says what you sell and makes it easy to get in touch. Fast, findable, and yours once delivered.

For you who need a website built for your business.

WEB READ MORE

Systems development

An internal system, a booking or an admin panel that takes over what the phone and the spreadsheet do now.

For the business whose overview lives in a spreadsheet and a phone that has to be answered.

SYSTEM READ MORE

AI automation & chatbots

Routines that run by themselves, and chatbots that answer from your own documents, with the limits set in the code.

For the business that answers the same questions every day.

AI · AUTOMATION READ MORE

Penetration testing & LLM guardrails

You find out what is open in the system and the language model you already run, in writing, with remedies and deadlines.

For the system that is already running, with or without AI.

Black and white portrait of Markus Westengen — One developer. The whole stack. MARKUS WESTENGEN

Westengen Studio in Nittedal builds websites and systems for small and mid-sized businesses across Norway. Work directly with Markus Westengen from scoping to production, with a security review before launch.

WESTENGEN · 02/03 WORK

Projects

Toms Arena

Toms Arena Screen capture of the front page of Toms Arena

THE CLIENT

The clinic is Tom Skjønnhaug’s. He has treated elite athletes since 1985, and Thor Hushovd, Lars Monsen and Nusa are among the clients. That is what the clinic says on its own page.

WHAT I DID

I built the clinic’s landing page: what the treatment is, who it is for, and who stands behind it. The booking is the clinic’s own, and it is untouched. I also built a system where they can change the videos shown on the page themselves.

STACK

VANILLA JS · SETMORE · VERCEL

MONTERT

CONCEPT OPEN DEMO

WHAT I DID

Concept design for a fictional burger restaurant where the whole site is an assembly manual and the menu is a bill of materials. The burger is put together as you scroll: an image sequence is drawn to a canvas and driven by the page’s ordinary scrolling.

STATUS TODAY

The restaurant is fictional, and the site says so itself at the top of the page. The site is in English.

STACK

REACT 19 · TANSTACK START · VITE · TAILWIND V4 · VERCEL

Open the concept

Sparsom

THE PROBLEM

Getting an overview of your own finances means keeping the budget yourself, and the recurring charges you have forgotten keep going out. Fifteen suggestions in a list becomes no action at all.

WHAT I DID

I built the landing page and the waiting list. The one move worth mentioning: the site refuses to publish a claim about security until a human has checked the source. If the source is missing, the whole build stops.

STATUS TODAY

The website is delivered. The app has not been published yet.

STACK

NEXT.JS · REACT 19 · TAILWIND V4 · MOTION · PLAYWRIGHT · VERCEL

sparsom.ai

See more projects

WESTENGEN · 03/03 CONTACT

Get in touch.

Book a free scoping call, or send a message. You get an answer within one working day.