Product design · Mobile
I design mobile products that stay clear when things get busy.
Industrial Design Engineering graduate from TU Delft, moving into product design full-time. I ship real apps with real stakeholders — and want to grow craft around flows, UX decisions, and product ownership.
Work
Process
Ask Siebe
CV
Selected work
Three products. Same approach: define the problem, reduce friction, ship.
Consumer · Client
Speelopvliegers
Party game for women 50+. One host app, QR join, clear free-to-unlock path.
Open case
Privacy product
Stira
Privacy-first period tracking. Local data. Partner sharing only with consent.
Open case
Padel
Next Level
Next Level
Booking product
Padel Next Level
Lesson booking for trainer Ruud. Tight V1 scope. Students book. Agenda stays clear.
Open case
For recruiters
Ask Siebe
A guided chat with public knowledge about my background and projects. Useful if you want context fast — without digging through a long PDF.
Looking for
Early-career Product Designer roles in mobile consumer products.
Problem framing
Mobile UX
Stakeholder work
Shipped products