Stefan Mos

Product designer, developer
& CSS design awards judge.

Sketch, Ruby on Rails, Tailwindcss.

About me

Over 8 years of design and development experience in a wide selection of industries and a specific focus on startups.





Design is not just something I do every day for a job, design extends itself to how I organize my life, and it is these strong personal emotional connections that bleed back into my work. I find myself the happiest when I get to untangle complex structures and build out software that not only enriches people's lives but makes them want to continuously come back.

During my career I have built internal tools for the companies, I have built front-end frameworks and a few design systems.

I am currently working on Clia, a project and expense manager for freelancers I founded in 2019 and I’m also the co-founder and director of Etapath, booking software for corporate carpooling.



July 2019 - Present


Union Software

June 2018 - December 2019

Product Designer & Front End Developer


February 2018 - August 2019

Design System, Product Design Lead


February 2018 - August 2019


Odrin Menswear

January 2018 - January 2019

Product Designer & Consultant


September 2015 - January 2018

Senior Designer & Front End Developer


April 2015 - August 2015

Senior Designer & Front End Developer

Mirium (Quirk)

February 2014 - March 2015

Designer & Front End Developer

Mos Design

March 2011 - Present

“Stefan is a rare talent. In the short while that he worked with me, he demonstrated a unique ability to break design and code challenges down into their simplest and most eloquent solutions. His innate sense of balancing function and form is something that simply cannot be taught. He is highly integrous in both work and conduct, and will surely blaze trails into his bright professional future. I can highly recommend Stefan as an important addition to any world class team.”

Byron Rex Phillipson

Executive Creative Director - Twitch

"Stefan is one of the most meticulous and talented designers I have met. He is able to think conceptually, craft and produce content that is both relevant and beautiful. A skilled artist that I would work with again in a heartbeat."

Chad Wright

Senior Content and Copy Strategist at Zalando SE

Get in touch

Reach out on Linkedin or email me at iamstefanmos@gmail.com

© Copyright Stefan Mos 2019