About

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.

Work

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.

CV

Companies I've helped build and lead

Resonant

Founder

2026Present

Product studio focused on health and productivity

Klu.ai

Co-founder & CEO

20222026

LLM app evaluation and optimization platform

Productboard

Senior Director, Product Management

20202022

Data-driven enterprise strategy to $50M ARR

Freeletics

Head of Product & Design

20172020

40m users, 100+ countries, and 70% W1 training activation

Amazon

Global UX Manager

20162017

eCommerce expansion programs

Capital One

Principal Designer / Design Manager

20142016

Investing products and service design

Smoov

Founder

20032014

Design studio working across consoles, desktop apps, mobile, and web

How is this site built?

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).