Identity you can prove, code you can trust.
I'm CTO at Yivi and Caesar Groep. Long, specific writing on privacy-first digital identity and on engineering practice in the age of coding agents.
Selected writing
Lights Out, part 1: the insane adoption of agentic coding
While You Blinked On 5 February 2026, SemiAnalysis opened a research note with a sentence that should have rattled every engineering manager in Europe: “4% of GitHub public commits are being authored by Claude Code…
Integration patterns using NServiceBus & Azure Functions
At the SeverlessDays Amsterdam online meetup on February the 3rd I gave a talk on Integration patterns using NServiceBus Azure Functions . The slides can be downloaded here The code can be found on Github
Improving your Azure Cognitive Search performance
It can be quite a struggle to really understand the ins and outs of Azure Search, how search results are scored, and how scoring profiles with weights and functions add up. In this blog post I intend to explain the…
Applying an Azure Governance Framework in 10 steps
Cloud Republic - Azure Governance Framework. Every year RightScale, now Flexera, holds a survey to measure the current cloud challenges. This year just like in previous years Managing cloud spend and applying governance…
Running an OpenAI Gym on Windows with WSL
Recently, I have been playing with Artifical Intelligence a little bit. I want to take on this subject a little bit more serious and I was looking for a playground to combine gaming with AI, to make it fun. I came…
Sending e-mails with SendGrid and Azure Functions
In this blogpost I’ll show how to send e-mails with SendGrid and Azure Functions. The goal is to send an email like this, stating in Dutch that some products that people are selling are hijacked. SendGrid in Azure First…
Autonoom rijden
Dibran over Artificial Intelligence . Dit is de eerste blog in de serie: “Dibran over Artificial Intelligence”, een serie blogs waarin ik dieper in ga op de hedendaagse mogelijkheden en toepassingen van artificial…
Learn CosmosDb in 27 pictures
The Azure CosmosDb team published a series of cartoons on their twitter account to explain alot of CosmosDb features. I collected them and thought it would be nice to reshare them with you. Happy learning! The 7 new…
Locally testing Azure Functions
Azure Functions with for instance TimeTriggers or ServiceBusTriggers can be difficult to test. Especially when you’re trying not to interfere in a development or testing environment. What a lot of people don’t know is…
Versioning with Azure PaaS and Serverless
Working with multiple teams on a big microservices architecture can be a real struggle. What I often see is that teams are responsible for their set of microservices and struggle to isolate their services. Resulting in…