A poorly designed API or database schema costs you months of rework later. I design and build backend systems that are clean, documented, and built to scale from day one.

I work with REST and GraphQL, implement authentication and authorization (OAuth2, JWT, role-based access), and integrate third-party services including Stripe, QuickBooks, SendGrid, and banking APIs. Every API I deliver comes with Swagger/OpenAPI documentation and unit tests — part of the deliverable, not an afterthought.

I've built backends for FinTech platforms, SaaS products, and self-service terminal reconciliation systems. If your existing API is a mess, I can also audit it and give you a prioritized refactor plan.