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clausen.uk Copenhagen area, Denmark

MarcClausen

Data Engineer@ SoftwareOne

I build data platforms and the full-stack apps on top of them. Mechanical engineer by training, so I like things that are measured, modelled and built to last.

01 / Career

Career

Earlier work · 2018–2024

Education & certification · oldest first

Languages

  • Danish (native)
  • English (fluent)
  • Swedish (understand)Norwegian (understand)
  • German (learning)Russian (learning)

Novo Nordisk · Apr 2024 – Jul 2025 · 1 yr 3 mo

Student Data Engineer

Novo Nordisk A/S · Hillerød, Denmark

  • Built 10+ data pipelines and 4 dashboards in Palantir Foundry.
  • Maintained a PostgreSQL database by updating deprecated views.
  • Supported compliance processes for digital solutions in a GxP environment.
  • Foundry
  • PostgreSQL
  • Python
  • Git
  • AI dev tooling

Novo Nordisk · Jul 2025 – Dec 2025 · 5 mo

Associate Data Engineer

Novo Nordisk A/S · Hillerød, Denmark

  • Migrated the facility's main PostgreSQL database to Databricks to create a unified data platform.
  • Lead full-stack developer on two internal applications automating manual metrology processes.
  • Ran mob-programming sessions to upskill colleagues in software development.
  • Simplified highly complex CAD models to cut computational load in digital-twin simulations.
  • Databricks
  • PostgreSQL
  • Python
  • TypeScript
  • React
  • Git
  • AI dev tooling

Case studies

One platform instead of three
Problem
Facility data lived in an ageing PostgreSQL database, Palantir Foundry and spreadsheets. Every report meant stitching sources by hand.
Approach
Mapped 120 views and their consumers, rebuilt the core models as Databricks Delta tables with incremental pipelines, then ran old and new systems side by side until the numbers matched.
Outcome
One source of truth for the facility; report refresh from hours to minutes; legacy database retired.
Taking metrology off paper
Problem
Metrology engineers logged measurements manually and checked tolerances by eye.
Approach
Led the build of a full-stack app that ingests instrument data, validates it against CAD tolerances and produces GxP-ready records.
Outcome
~70% less manual entry; audit trail by default.

SoftwareOne · Jan 2026 – now · 10 mo

Data Engineer

SoftwareOne · Søborg, Denmark

  • Design and build data pipelines and platforms on Databricks and PostgreSQL.
  • Build the full-stack apps on top of them in React, TypeScript and Python.
  • Set up the team's AI development infrastructure, with shared development standards and context management for AI agents (Claude Code, OpenCode, Codex).
  • Added AI code reviews to the CI pipelines, so the whole team ships faster.
  • Databricks
  • Python
  • AI dev tooling
  • TypeScript
  • React
  • PostgreSQL
  • Git
  • Docker
  • Linux
  • Cloudflare

Case studies

AI-assisted development for the whole team
Problem
Everyone used AI coding agents their own way. There were no shared conventions, the agents started without the project's context, and code review sat with a few people.
Approach
Wrote the team's development standards, set up context management so Claude Code, OpenCode and Codex start from the same project knowledge, and added AI code reviews to the CI pipelines.
Outcome
The agents follow the team's conventions from the first prompt, every change gets an AI review in CI, and the whole team ships faster ([TBD] metric).

Heptagon · May 2018 – Jan 2022 · 3 yr 8 mo

IT Assistant

Heptagon ApS · Roskilde

  • Took a 3-day industrial SCADA course.
  • Resolved 60+ technical issues on company phones and computers.
  • Consulted on two projects involving mechatronics and IoT integration.

DTU · Sep 2020 – Dec 2024 · 4 yr 3 mo

Teaching Assistant

Technical University of Denmark (DTU) · Kongens Lyngby

  • Assisted in 100+ group work sessions for maths and physics courses.
  • Privately tutored 10+ students, raising grades from fail (00) to 7+ after failed first exams.

Education · 2016 – 2019

HTX, Maths/Physics

HTX Roskilde

GPA 11.0 / 12

Education · 2019 – 2022

B.Sc. Mechanical Engineering

DTU

Broad engineering foundation (maths, physics, programming, materials, thermodynamics, fluid dynamics).

GPA 10.1 / 12

Thesis: Neural nets for wind-farm wakes

Education · 2022 – 2025

M.Sc. Mechanical Engineering

DTU

Specialised in programming, computational fluid dynamics and robotics, and extended by half a year to gain industry experience.

GPA 10.7 / 12

Thesis: Robotics add-on for CAD

Certification · Sep 2026

Claude Certified Architect – Foundations

Issued by Anthropic

Designing and building production-grade applications with Claude: Claude Code, the Agent SDK, the Claude API and MCP.

Valid until Sep 2027

View the credential

02 / Projects

Things I've built

scroll slowly: each model pops out

03 / Skills

Skills

Every job and project stops at the skills it uses · tap a flight or a city

Departures

Jobs

Projects

04 / Hobbies

Off the clock

tap a postcard to turn it over

  • 3D printing

    Introduced to 3D modelling and printing in high school, and I've printed everything from small trinkets to large projects since. These days on a Bambu Lab P1S, mostly with my own SolidWorks designs.

  • Board games

    A good excuse to put the phones away and sit down with friends. A small but growing collection; favourites are Settlers of Catan, Risk, Hint and Wingspan.

  • Chess

    My grandpa taught me the basics; friends got me hooked in high school. Nowadays mostly puzzles, with a puzzle rating around 3000 on chess.com.

  • Disc golf

    Friends introduced me to it, and although it's a slightly odd sport, I keep playing more. A small, growing disc collection and a round at least once a week.

  • Exercise

    Not a gym fanatic, but I know it matters. At least one gym session a week, plus daily walks or runs to stay active.

  • Food

    I love exploring local cuisines when I travel. I rarely find time to cook properly, but when I do put in the effort, the result is a decent meal.

  • Music

    Started on guitar at the end of primary school and picked up piano and ukulele along the way. Not a virtuoso, but I enjoy playing and singing for myself.

  • Poker & card magic

    As a kid I was obsessed with card tricks and spent hours on sleight of hand. The magic has retired, the love of cards hasn't; Texas Hold'em is a favourite.

  • Audiobooks

    Fantasy fan who never clicked with paper books, so audiobooks on walks and chores. Favourites are Brandon Sanderson's Mistborn and Stormlight Archive.

  • Video games

    From the original Game Boy to a PC I built myself. Less time for it now, but all-time favourites are Sly Cooper, Minecraft, TF2, The Witcher 3 and CS.

05 / Contact

Let's talk.

Want to talk data, apps or AI tooling? Email is the fastest way to reach me.

From

Marc Clausen

Data Engineer

Copenhagen area, Denmark

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