Hi, I'm Frank.

Twenty years designing brand and product. Strategic when the work needs it, hands-on the rest of the time.

Mostly in-house at startups. I come in to build for scale, with one filter for what ships: does it make money, or make the platform more self-service?

Off the clock, I'm experimenting with ice cream, built my own furniture, or camping with my family in our campervan.

I’ve worked with 

incredible partners

I’ve worked with 

incredible partners

I’ve worked with 

incredible partners

Teero — Founding Designer

May 2023 – April 2026

First designer at an AI-native platform automating the back office for US dental practices. Built the staffing marketplace from zero, then the AI back-office expansion. Led the rebrand. 5× revenue last year, tens of thousands of hygienists, thousands of offices, across all 50 states. Series A closed Q4 2024.

RocketX, Magnify & Monocle — Design Lead

February 2022 – February 2023

Creative direction for a 5-FTE design team across the RocketX scaleup studio and its SaaS products Magnify and Monocle.

February 2022 – February 2023

Creative direction for a 5-FTE design team across RocketX (a scaleup studio) and its SaaS products Magnify and Monocle.

Dan.com — Head of Brand & Design

May 2020 – December 2021

Led brand and product at Dan.com, a domain-name marketplace. Led the rebrand and rebuilt the platform from rough to real — extending what Dan.com could do. Hired and led the design team. Acquired by GoDaddy in 2022 for $71.4M.

May 2020 – December 2021

A domain-name marketplace. Led the rebrand and the platform redesign — from a manual, minimal setup into a full transaction environment for buying and selling domain names. Hired and led a multidisciplinary team of product designers. Acquired by GoDaddy in 2022 for $71.4M.

Temper — Design Lead

March 2018 – December 2019

Hospitality-flex marketplace. Made the supply-side bet — branded the platform for the workforce, not the companies hiring them. Led the rebrand, the marketplace redesign, and hired and led a team of six designers. Series A closed Q3 2018. Deloitte Technology Fast 50 Rising Star 2018.

March 2018 – December 2019

A workforce marketplace — initially hospitality and charity, later logistics, construction, and commercial. Led the rebrand, built the apps, and rebuilt the platform. Hired and led the design team. Helped raise Series A. Company grew from 35 to 150+ during my time. Won the Deloitte Technology Fast 50 Rising Star 2018.

Adyen — Senior Designer

October 2013 – January 2018

First hired designer at what is now Europe's largest fintech unicorn. Was there when it became one. Designed across product, brand, and field marketing through the scale-up. Built Adyen's first internal design system — still shipping in Adyen's Customer Area ten years later.

October 2013 – January 2018

First hired designer at what is now Europe's largest fintech unicorn. Designed across product, brand, marketing, and pitches through the scale-up from small team to global company. Part of the rebrand and co-built Adyen's first design system — still live ten years on.

Earlier

Thisign (Freelance, 2009–2020) · iCentre (Senior Designer, 2010–2013) · Compulutions (Designer, 2007–2009) · Deep (Designer, 2006–2007)

And they’ve said
some lovely things

Working with Frank at RocketX has been a real pleasure. He’s a team player, always willing to help out others and eager to reach the best possible result, together. And let’s not forget: he is simply a very skilled designer, who knows how to tackle any design challenge. Especially impressed by his deep understanding of product design. Frank is able to provide innovative, effective ideas that take any brand to the next level. Thanks for our nice collaboration, mate!

Claudia Verbeek
Head of Marketing, RocketX

When we first hired Frank, we were still working on a previous idea before pivoting to Dental. Frank has played a monumental role throughout all of the twist and turns we've had at Teero and helped us get to where we are today.

Nate Anderson
CEO & Co-Founder, Teero

Frank understood that great design is about solving people’s problems in unexpected ways, supported by aligned stakeholders and rapid iterations. Any organization would be lucky to have Frank around.

Niels Arntz


CPO & Co-Founder, Temper

Are you ready to rally around
your big idea?

© 2026 Frank Koelewijn

© 2026 Frank Koelewijn

© 2026 Frank Koelewijn