John Agan is an advisor, consultant, and investor who specializes in developer platforms and AI, with a 30-year career building APIs, marketplaces, and integrations across companies like GitHub, Slack, Twitch, Atlassian, Webflow, Replit, and Salesforce. He combines hands-on engineering (0→1 product and platform launches) with executive leadership—moving Replit through a B2B transition as VP and previously leading 40–50-person developer-focused orgs. His core strengths are developer experience, API/SDK design, platform partnerships, extensibility patterns, and AI agent strategy, and he has repeatedly shipped marketplaces and partner ecosystems that unlock revenue and adoption. Since 2025 he runs Aganomix, an independent practice that pairs prototype-driven engineering with AI strategy for startups and enterprises, and he advises firms including Postman and JP Morgan Chase. Not obvious from titles: he’s often been the first technical hire or single-threaded leader who seeded functions (partner engineering, developer relations, solutions engineering) that later scaled across organizations. Based in Chicago, he blends operator experience, founder instincts, and product-level craftsmanship to help teams ship developer-loved products.
A Slack developer kit to make building distributed Slack Apps easy.
Contributions:2 releases, 12 commits, 1 PR in 3 years 7 months
distributedserverlessexpressdeveloper-kitsdk
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John Agan - Advisor, Consultant, And Investor at Self Employed