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Casper Hollemans

Enterprise software you can build on

Senior software engineer. I build and modernise enterprise systems — AI-accelerated, without compromising quality.

Casper Hollemans, senior software engineer

Works with

  • Java/Kotlin
  • Kubernetes
  • Cloud architecture

Services

  • Architecture

    A solid base for scale and growth

  • Development

    Scalable, powerful software development

  • Optimisation

    Better performance, problems solved

  • AI Integrations

    Intelligent automation and AI solutions

  • AI workflow for teams

    Reliable AI-assisted development for your whole team

How I work

  • Quality first

    Every line gets senior review, built to enterprise standards. No prototype quality in production — software that lasts for years.

  • Architecture first

    My hours go into design, review and the hard 20% — the part systems stand or fall on. The rest follows from that.

  • Faster — without compromise

    My AI workflow accelerates building, not thinking. That is how I deliver faster — without you seeing it in the quality.

Casper Hollemans

About Casper

I have been programming since I was thirteen and have spent more than ten years building enterprise systems professionally — for years as technical lead of route.nl, then as founding cloud engineer at mosa.cloud, where a small team and I built the platform from scratch.

I believe in software that empowers people and makes an impact: solidly built, clearly explained, no fuss. I work remotely, with a fixed daily rhythm and full focus on one project at a time.

Powerful Software in 4 Steps

  1. 1

    Introduction

    1 - 2 hours

    We start with a conversation to explore what your software needs to do. I ask questions to understand your challenges and share my approach to solving them.

  2. 2

    Quote

    Within a few days

    Based on our conversation I put together a clear, tailored quote. We go through it together and plan the next step.

  3. 3

    Development

    Varies per project

    With a clear plan we get to work. I build a solution that fits your needs exactly, with an eye on quality at every step.

  4. 4

    Live and maintained

    For the long term

    Your software is ready. I take care of maintenance and performance, so you can focus on making the most impact.

What others say about me:

Bas de Wit, route.nl
"Casper was voor mij de ideale tech lead: inhoudelijk sterk, verantwoordelijk en iemand waarvan ik wist dat als hij zich ergens aan committeerde, ik erop kon vertrouwen dat het ook afkwam."

To me Casper was the ideal tech lead: strong on the substance, accountable, and someone I knew would see a thing through once he had committed to it.

Bas de WitFormer Product Owner & Head of ICTroute.nl
Sander de Boer, SB-Space
"Casper’s oog voor detail, proactieve aanpak en heldere communicatie zorgen voor een sterke samenwerking."

Casper’s eye for detail, proactive approach and clear communication make for a strong working relationship.

Sander de BoerCo-founder & software engineerSB-Space
Nathalie Hendrix, Massage To Go
"Ik werk al jaren met plezier samen met Casper. Hij beoordeelt productdoelen grondig en met een kalme aanpak. Ik kan Casper van harte aanbevelen aan iedereen die op zoek is naar een analytische, efficiënte en positieve senior engineer!"

I have enjoyed working with Casper for years; he weighs up product goals thoroughly and with a calm approach, and I wholeheartedly recommend him to anyone looking for an analytical, efficient and positive senior engineer.

Nathalie HendrixOwnerMassage To Go

Ready for software that lasts?

Book an intro call — and we will work out where your software needs to go.

Two people at a table going through a sketch together

Fancy a quick chat?

Book a short video call — coffee welcome — and we will look together at where your software could be better. No obligations.

Want a quote? That starts here too: without knowing what you are up against, a price is guesswork.