Backend & API development

Backends that hold their ground.

APIs, databases and integrations engineered like infrastructure — because the part nobody sees is the part that breaks when it matters.

info@haybreaker.com
Node.js.NETKotlinRust24 Hr Response
APIsDatabasesIntegrationsPostgresPerformance
The problem

Front of house is fine. Back of house is held together with duct tape.

The website is fast, the app is polished, and behind them an API built in a hurry five years ago is doing the real work — slow at 3pm, brittle at month-end, and unrecoverable if something goes wrong at exactly the wrong moment. Nobody sees it until it fails. Then everyone sees it.

Backend engineering is where our senior people earn their keep: designing data models that match your actual domain, APIs that stay fast under real load, integrations that fail gracefully, and databases you can back up, restore and trust.

What we do

APIs. Databases. Integrations. In that order.

API design & build

REST and gRPC APIs with clear contracts, versioning and error handling — the kind other developers enjoy integrating with.

Data & architecture

Data modelling, migrations and performance tuning on Postgres and beyond. Tables designed for your domain, not a generic clone.

Integrations

Accounting, CRM, ERP, payroll, payments, third-party APIs — connected once, cleanly, with monitoring when it matters.

Performance rescue

Slow queries, hot loops and architectural bottlenecks diagnosed and fixed. Most systems can be made fast without a rewrite.

Security & access

Auth, rate limiting, least-privilege access and audit trails as standard — not as a premium add-on discovered later.

Legacy rescue

We stabilise, extend or replace systems another vendor left behind — and we quote the honest path, not the diplomatic one.

Why it matters

The front end gets applause. The back end gets paid.

Every app, portal and dashboard in this studio — mobile or web — sits on a backend built the same way: senior-owned, tested, documented, and owned by you. When your next project has backend needs, whether it’s an integration layer over existing systems or a ground-up platform, whether the front end is a web application or a mobile app, the 45-minute call starts with the part that actually breaks.

FAQ

Answered before you ask.

Tell us what you are building.

First call is 45 minutes and genuinely useful, even if we do not work together.

info@haybreaker.com