Frequently Asked Questions

It varies, and I'm never fully available: I also build my own SaaS platforms (Invullen.nl, Factuur-Assist.nl). That experience feeds directly into your project.

Get in touch for my current availability. We agree on fixed days ahead; for shorter tasks or individual days I can be scheduled on shorter notice.

Both. I'm based in the Utrecht region (Netherlands) and available for on-site and remote work.

For on-site work I calculate a maximum travel time of 1 hour (including average traffic delays).

Get in touch for a rate that fits the project. I work on an hourly rate or fixed price per project, depending on scope.

My primary stack:

• AI: Claude Code, Semantic Kernel, OpenAI, Azure AI Foundry
• Identity: OAuth2, OpenID Connect, Azure Entra ID, SCIM, IdentityServer4, OpenIddict
• .NET & Cloud: .NET 10, C#, Azure, Docker, Kubernetes (AKS), SQL Server
• Frontend: Vue 2/3, Angular, TypeScript
• DevOps: Azure DevOps, CI/CD, Playwright

View my CV for the full tech stack overview.

Yes. In addition to AI adoption, I help SaaS teams with enterprise SSO and provisioning. OAuth2, OpenID Connect, SCIM, Azure Entra ID. Multiple secure token services built. SC-300 certified.

More on the SSO page.

We start with a 30-minute conversation. I listen, ask questions, and give you an honest assessment of whether I can help.

For AI adoption engagements, I join your team 2 days a week. I build alongside the team, ship features, and show how AI tooling works in your code. The goal: your team works differently than before. Faster, with more confidence.

I work on the basis of the Model ICT Agreement (Dutch standard).

Yes. I have professional liability insurance from Hiscox in the name of Software Assist BV.

I pay attention to this. The Dutch tax authority looks not only at the contract, but mainly at how the collaboration is actually set up: authority, embedding in the organisation and entrepreneurship.

On those points, here is how it looks in my case:

• I work through my own company, Software Assist BV, with my own Chamber of Commerce registration, VAT number, professional/liability insurance, my own methods and my own tools.
• I have multiple clients and also build my own SaaS products, including Factuur-Assist.nl with 135+ customers and Invullen.nl. So I'm not dependent on one client and carry my own entrepreneurial risk.
• We work on the basis of a contract for services, for example the Model ICT Agreement, not an employment contract.
• I independently decide how I carry out the work. Of course we align on goals, planning and quality, but the engagement is not set up as hierarchical direction like with an employee.
• I prefer a defined, specialist engagement, for example AI adoption, agentic coding enablement or SSO/IAM. The focus is on results and expertise, not on “being a permanent team member”.
• Typically I work 1 to 2 days a week for a client, precisely to preserve independence, spread and entrepreneurship.

This way we substantially limit the risk of false self-employment together. Prefer your own model agreement? Certainly open to discussion, as long as the arrangements match how we actually work in practice.