About Koen
I am Koen. I enjoy building where things get complicated.
I have spent more than fourteen years building web software—today, mostly Laravel backends where logic, data and external systems meet.
started as an independent developer
years building web software
contact with the person doing the work
How I got here
From broad web development to the backend
I started broadly: PHP, WordPress and whatever was needed to get a website or application off the ground. Over the years my work moved increasingly towards Laravel, APIs and applications with serious business logic.
That is where I do my best work. I like turning a messy technical question into something understandable and buildable—finding out why something is slow, how two systems can work together reliably or how a feature belongs in an existing codebase.
I also build my own SaaS products. It means I naturally look beyond the pull request: deployment, monitoring, security and future changes are all part of the same work.
Your question does not need to be technically perfect. Working that out is part of my job.
What I work with every day
A broad view. Laravel as the foundation.
Frameworks and databases are tools. A choice is only good when it makes the problem simpler.
Backend
Laravel, PHP, queues and complex business logic.
Data
PostgreSQL, MySQL, ClickHouse and Redis.
Integrations
APIs, OAuth, webhooks and synchronisation.
Delivery
Tests, security, CI/CD and monitoring.
Let’s talk
Shall we look at your question and the technology together?
Tell me briefly what is going on. I will give you an honest view on the best first step.