A coach who codes. An engineer who coaches.
Sean Marshall has been two things for twenty years. A software engineer shipping real systems at companies that couldn't afford for those systems to leak, break, or guess. And a youth sports coach across the South — on fields, courts, and diamonds in Mississippi, Louisiana, and Texas — coaching basketball, soccer, football, baseball, tennis, whatever his kids picked up or his community needed a coach for.
Those two tracks ran in parallel for most of his career, but they kept intersecting in ways the sports-software market was not solving. Every platform he used as a coach either did not respect the data or did not respect the users. As an engineer who had shipped Electronic Medical Records systems — where HIPAA is not a suggestion — he knew what actually serious data handling looked like. The gap between how sports platforms treat family data and how platforms trusted with medical records treat medical data was not going to close itself.
So he built Recursive. A platform designed from the first commit around the kind of data protection he was used to seeing in regulated software, with a product model that treats families and members as customers — never as advertising inventory.