product-growth
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Yevhenii Kostenetskyi and the arithmetic of play
He arrived at Genesis with a finance background and launched Impulse in 2018. Seven years later, its team reported 100 million downloads - built one small game, and one business experiment, at a time.
Aakash Gupta and the essay that became a career
A weekend essay about Roblox found almost no readers until Aakash Gupta posted it on LinkedIn. Five years later, the former product executive makes a living explaining how products grow - and how the people building them can keep up.
Adam Calica Built a Job Board by Listening to the Wrong Part of the Website
A forum’s busiest threads told Adam Calica and his co-founder what their company really was. Fifteen years later, Built In is still following that signal - from Chicago startups to the strange new labor market inside AI search.
Four IPOs, One Rhino, and a Better Case for an Accessible Web
After two decades measuring clicks, building products, and scaling digital businesses, Chad Sollis is applying an operator's eye to a stubborn problem: the web still turns away too many of the people it was built to serve.
Luciano Kalil Still Opens the Dashboard Himself
Before AI agents became a boardroom obsession, Luciano Kalil had already spent decades turning messy human work into products. At Pipefy, the former programmer, repeat founder and community-marketing author has one governing habit: open the tool and look.
Brian Balfour
Brian Balfour is the founder and former CEO of Reforge, the professional development platform for experienced product, growth, and marketing practitioners that grew to 100,000+ alumni before being acquired by Miro in March 2026. Now Chief Growth Officer at Miro, he is best known for the Four Fits Framework - the thesis that Product-Market Fit alone cannot drive $100M+ growth, and that market, product, channel, and model must all interlock. A former VP of Growth at HubSpot, serial entrepreneur, and Venture Partner at Long Journey Ventures, Balfour is one of the most influential thinkers in the product-led growth movement.
Rosie Hoggmascall
Rosie Hoggmascall is a London-based product and growth expert specialising in subscription apps, monetisation, and product-led growth. With a Cambridge education and a career spanning strategic communications to leading consumer tech startups, she is currently Chief Product & Growth Officer at Fyxer AI - an email productivity tool that grew from $1M to $30M ARR in 2025. She also runs 'Growth Dives', a weekly Substack newsletter delivering annotated product teardowns to 2,000+ subscribers with a remarkable 64% average open rate.