Payment systems, reconciliation engines, and financial data backends are where bugs cost real money and compliance failures cost more. I build FinTech backends that are precise, auditable, and production-grade — not a generic CRUD app with a Stripe import.

I specialise in payment integrations (Stripe, QuickBooks, banking APIs), transaction reconciliation engines, double-entry accounting logic, financial reporting pipelines, and secure multi-tenant data architectures. I've worked on banking applications, ATM reconciliation platforms, and FinTech SaaS products where correctness isn't optional.

Every system I deliver is fully tested, documented, and built with the audit trail and data integrity that financial applications require.