The invisible layer that makes everything work.

Your app needs to talk to a database. Your website needs to pull data from a CRM. Your mobile app needs a backend. That's an API — and if it's slow, unreliable, or badly designed, everything built on top of it suffers.

I build APIs and backend services with the same rigour I apply to enterprise systems. Clean endpoints, proper error handling, documented and testable.

What you get

Built with craft.

RESTful or GraphQL

Whichever fits your use case. Clean, well-documented endpoints that other developers can work with.

Database design

Proper schema design, migrations, indexing. Your data is structured to scale, not just to work today.

Third-party integrations

Stripe, Xero, Google APIs, payment gateways, CRMs — connect your systems together reliably.

Authentication & security

JWT, OAuth, API keys, rate limiting. Secured properly from day one.

Fast and reliable

Edge-deployed where possible. Caching, connection pooling, optimised queries. Built for speed.

Documented

OpenAPI specs, clear documentation. Your team or future developers can understand and extend it.

Senior engineer quality. Not agency prices.

I'm Cameron-Lee — building production software since 2019 at companies like DEFRA, Invosys, Oncam, and Dataplan. I run Rothenburg Limited alongside my day job. You get the same engineering standards I apply to enterprise systems — without the six-figure agency quote.

APIs that your systems can rely on.