About Stephen and this site
Success, like happiness, cannot be pursued; it must ensue, and it only does so as the unintended side effect of one's personal dedication to a cause greater than oneself — Viktor Frankl
This site is a collection of my thoughts and photos. Here's to the fun, interesting web.
I’m the founder of Resonant, a product studio focused on health and productivity. I set product direction, design the interfaces, and build the software, taking products from early ideas through launch and ongoing development, including Fuel and Wisp.
I also maintain benchmark evaluations for frontier models, including Basecamp Bench and others.
When I’m not building products, I help startups and founders work out hard problems.
I co-founded Klu.ai in 2022 and served as CEO until 2026. We built an AI infrastructure platform that helped teams ship reliable LLM-powered features faster. I set product direction, built UI, and led fundraising, turning early prototypes into a revenue-generating platform used by thousands of AI teams.
Before founding Klu.ai, I led product at Productboard and product and design at Freeletics.
As Senior Director of Product Management at Productboard (2020 – 2022) I introduced a data-driven strategy and led an org that reshaped the product from SMB/PLG-darling to enterprise roadmap software adopted by 6,000+ companies, growing 5x to over $50M ARR.
Before that, as Head of Product at Freeletics (2017 – 2020) I oversaw product management, design, research, content, and subscription monetization and helped the digital fitness app surpass 50 million users worldwide.
My product instincts were shaped in UX leadership roles at Amazon (2016 – 2017) and Capital One (2014 – 2016). At Amazon I managed global user-experience programs for non-US and cross-border shopping, while at Capital One I led a design team that improved mobile investing usability and boosted digital adoption among cardholders.
Prior to Capital One, I founded a boutique design agency Smoov working on everything from eCommerce to console games to desktop apps.
Companies I've helped build and lead
Resonant
Founder
2026 – Present
Product studio focused on health and productivity
Klu.ai
Co-founder & CEO
2022 – 2026
LLM app evaluation and optimization platform
Productboard
Senior Director, Product Management
2020 – 2022
Data-driven enterprise strategy to $50M ARR
Freeletics
Head of Product & Design
2017 – 2020
40m users, 100+ countries, and 70% W1 training activation
Amazon
Global UX Manager
2016 – 2017
eCommerce expansion programs
Capital One
Principal Designer / Design Manager
2014 – 2016
Investing products and service design
Smoov
Founder
2003 – 2014
Design studio working across consoles, desktop apps, mobile, and web
Sometimes I speak about building empathy for stakeholders, collaboration, design, growth, product management, and product innovation. You can find a few of the public decks from those talks on Speaker Deck.
This site is hosted on Vercel, runs on Next.js, and uses Fathom for simple analytics. Its content makes extensive use of the em dash and Oxford comma (before the ChatGPT era made them cool, check the tapes).
You can find code, music listening history, favorite movies, and free photos elsewhere. I can also be found on 500px, Dribbble, Etherscan, Goodreads, Instapaper, and LinkedIn.
And of course there's always Tumblr for a look into the past (2008-2014).
@0xSMW
x.com
GitHub
github.com
linkedin.com
Dribbble
dribbble.com
instagram.com
YouTube
youtube.com
Figma
figma.com
Unsplash
unsplash.com
500px
500px.com
Last.fm
last.fm
Letterboxd
letterboxd.com
Etherscan
etherscan.io
Goodreads
goodreads.com
Hey
world.hey.com
Instapaper
instapaper.com
Tumblr
aethelyon.tumblr.com