Web app founder

Designed, built and launched a GPS load monitoring SaaS platform for sports scientists and coaches, working solo from idea to paying product.

Built the full product in Next.js (App Router), TypeScript, PostgreSQL and Prisma, with NextAuth.js authentication and Stripe billing, deployed on Vercel and Neon.
Wrote data import pipelines for messy Catapult OpenField and PlayerTek CSV exports (1,200+ columns, inconsistent formats), with deduplication so repeat uploads never create duplicate sessions.
Turned my own published 2019 monitoring methodology into automated training-load metrics (EWMA, training stress balance, configurable velocity bands), shown in individual and team dashboards built with Recharts.
Set the pricing strategy and three-tier model (Solo, Club, Pro), plus a Founder Access offer to convert early users.
Ran user acquisition and research: a targeted outreach campaign to 48 practitioners, onboarding of trial users at professional clubs, and structured mid-trial and end-of-trial feedback surveys.
Kept a production-grade setup: separate staging environment, architecture decision records and full technical documentation.