About me
I'm a Senior Product Manager at Dojo. In the past, I worked at the FT and Fathom. I've gained experience in payments, news media, and climate-tech. I'm passionate about building products, revenue growth and venture capital. I hold a PhD in Physical Geography.
Connect on github, X, linkedin or reach me at me@jsosa.xyz.
Projects
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Wiki
A public map of concepts, companies, people, markets, and operating ideas I'm learning from.
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The Weekly
A weekly operator newsletter on podcasts, markets, AI, GTM, and company-building signal.
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Profitable
A lightweight calculator for modelling profit, margin, and unit economics.
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Growth score
A public-company dashboard for comparing growth, margins, cash flow, Rule of 40, and revenue multiples across industries.