Client Booking & CRM Systems

Operators in hospitality, health, and professional services had outgrown spreadsheets and ad-hoc tools. They needed reliable booking slots, staff views, customer records, and simple CRM-style follow-up—without paying enterprise SaaS prices for half-used features. Each client had slightly different rules (cancellation windows, deposits, multi-location), so the builds had to stay maintainable as a portfolio rather than six unrelated forks.

Per client: modeled the core domain (appointments, services, staff, customers), exposed REST APIs for web and optional mobile clients, and shipped React admin dashboards tuned to how front-desk staff actually work. Focused on idempotent booking operations, timezone correctness, and email/SMS hooks where required. Deployed to production VMs or PaaS per client constraints, with basic monitoring and backup guidance so the system stayed up after handoff.