Jimmy Jansen

Currently

These days I'm working on internal tools, like an agent workflow that takes security findings through a complex state machine while keeping humans involved.

Open to Principal and Staff platform roles in the Netherlands or remote.

• Simplicity Is an Architectural Decision

  Simplicity is not the absence of design. It is the result of knowing which complexity has earned its place, where it belongs, and which imaginary futures are not worth paying for.

• A Pragmatic Testing Strategy

  Coverage numbers are easy to hit and easy to trust too much. Testing is really how caring about quality becomes concrete, and the craft is not testing everything but knowing what is worth your confidence and what is just theater.

• Platform consolidation

  Three product platforms merging into one. Three data models that had to keep talking to each other while old and new customers ran side by side. Twelve teams, five months, and architecture decisions that had to land without a major outage or a lost account.

• Technical strategy across teams

  In my current role, the ADR and RFC practice is now mandated org-wide. Supporting twelve team leads on the technical feasibility of their quarterly plans. Earlier, in consultancy, thirty-plus engagements brought me in to make the technical calls that got builds shipping under pressure, with teams set up to keep going after I rolled off.

• Building what customers use

  Customer-facing work across different companies: video platforms at scale, consumer mobile apps, and consultancy engagements spanning startups to enterprises.