Hi, I’m Jeroen.
At Postman, that means working on the kind of product complexity most designers avoid: messy systems, overlapping workflows, millions of developers depending on things working right. I care as much about what gets built as how it’s designed.
Unpacking those problems, asking uncomfortable questions, understanding how things actually work. That’s where I do my best work. AI is a big part of how I do that now. I use ChatGPT and Cursor constantly to explore ideas, challenge my own thinking, and get prototypes in front of people fast. It made me faster and more capable, and it pulled me closer to engineering, which is where I think design is heading anyway.
I’m often in the codebase. Prototyping, experimenting, occasionally fixing a rough edge myself rather than filing a ticket. It means the details actually get handled: the states, the edge cases, the interactions that usually get lost between design and engineering.
Outside of work, I’m usually renovating my house, sketching in 3D in SketchUp, or building some app that only solves a problem for me. Oh, and I’m a metalhead. That’s me.
Experience
Senior Product Designer
Postman
2022 – present
(Remote)
Senior Product Designer
4I joined as Product Designer and was promoted to Senior. I work on collaboration and workspace systems used by 35M+ developers. The problems are rarely isolated: navigation, sharing, permissions, and discovery all touch each other, and changes ripple across the product. I dig into the complexity first, push back when the problem isn’t right, and define what should be built before deciding how it looks. I build alliances across disciplines, product, engineering, and data, and leverage those relationships to move complex multi-team initiatives forward. I mentor designers and help push how the team approaches AI and prototyping.
- Simplified the workspace model from five types to three, driving 24% paid collaborator growth and ~$2M ARR in a single quarter
- Increased share conversion from 10% to 28% through UX-led improvements
- Grew weekly comments from ~750 to 7,000+ by redesigning discoverability and ease of use
Product Designer
i3D.net | Ubisoft
2018 – 2022
(Hybrid)
Product Designer
Sole designer on an infrastructure platform used by game studios to run multiplayer games for 250M+ players. The backend was powerful but API-first with no real frontend. Teams configured deployments through documentation and APIs, with little visibility into what would actually happen at runtime. I redesigned the entire product: server management, order flows, login, monitoring, and every operational workflow in between, turning a system that was hard to predict into something teams could configure confidently and operate under real launch pressure.
- Designed the full platform end-to-end, from no frontend to a complete operational system serving 250M+ players
- Built the design system from scratch across all tooling
- Supported launches of The Division, Rocket League, and Skull and Bones
Designer
Studio Steenbergen
2008 – 2018
Designer
Designed and shipped 75+ client websites end-to-end: UX, branding, build, and SEO. Handled the full process from client brief to launch, mostly solo.
Education
Nielsen Norman Group
UX Master Certification
2020
CareerFoundry
UX Design
2019 – 2020
Courses
Reforge
Scaling Product Delivery
2022
User Insights for Product Decisions
2021
Growth.Design
Product Psychology Mastery
2021
Competence Factory
Usability
2019
Interaction Design
2019
Skills & Tools
- Product strategy
- Systems thinking
- Interaction design for complex systems
- Design system contribution
- User research & usability
- Hands-on prototyping in code
- AI-native workflow
- Design-engineering fluency
- Remote & async collaboration
- Shaping in ambiguity
- Working close to the codebase
- Figma, Cursor, ChatGPT, Claude, Lovable, Git, SketchUp