Split Step Solutions · Live · 4,000+ users · 15+ reports · Live since 2025

COBS

Custom booking system for a 4,000-member tennis club — I pitched it, designed it, and built it, replacing a system everyone was fed up with.

Overview

The system that runs a tennis club's whole operation: court bookings, coaching, program registrations, embedded payments, club credit, and reporting.

The part I'm proudest of: a booking rules engine that juggles booking type, user type, court, and timeslot constraints without breaking
Runs the whole club — coaching, program registrations, embedded payments, club credit, and 15+ operational reports
Custom modules like weekly member socials and indoor/outdoor season modes
Live since September 2025 on a load-balanced AWS deployment with CI/CD

React · Material UI · React Query · Redux · TypeScript · Node.js · Express · Postgres · Prisma · AWS