Software Development

Backend & API Development

Services and APIs designed to be relied on

Behind every good product is a backend that nobody notices because it simply works. We design and build services and APIs that are secure, well documented, and able to handle growth without a rewrite.

What's included
In this engagement06
  • API design
  • Service architecture
  • Database design
  • Integrations
  • Authentication and security
  • Scalability and reliability

Why it matters

A good API is a promise. Clear contracts, predictable errors and careful versioning let other teams build on it with confidence.

What this includes

Six parts of the work. Which of them you need depends on where you are starting from, and we agree that before anything is built.

  1. 01

    API design

    REST and GraphQL APIs with clear contracts, consistent errors and documentation.

  2. 02

    Service architecture

    Modular monoliths or services, chosen by what your team can realistically run.

  3. 03

    Database design

    Schemas, indexes and queries designed for correctness and performance.

  4. 04

    Integrations

    Reliable connections to payment providers, CRMs, ERPs and other third-party systems.

  5. 05

    Authentication and security

    Secure login, authorization and data protection built in from the start.

  6. 06

    Scalability and reliability

    Caching, queues and background jobs that keep the system responsive under load.

  7. Not sure which of these you need?

    Tell us where things stand for you today and we will suggest where to start.

How we deliver it

Four stages, agreed with you before the work starts, with a working result at the end of each rather than one reveal at the end.

  1. Define the contract

    We agree the data model and API design with the teams that will use it.

  2. Build in increments

    Endpoints are delivered in small, tested steps with documentation.

  3. Test and secure

    Automated tests, security checks and load tests run before release.

  4. Deploy and support

    Services go live with monitoring, and we support them through the early weeks.

The stack

Technologies we work with

The tools we reach for most often in this work. We fit in with what you already run rather than asking you to change it.

14Tools across
3 groups
  • 01 / 03

    Languages

    5
    • Node.js
    • TypeScript
    • Python
    • Go
    • C#/.NET
  • 02 / 03

    Frameworks and data

    5
    • NestJS
    • FastAPI
    • PostgreSQL
    • Redis
    • MongoDB
  • 03 / 03

    Infrastructure

    4
    • Docker
    • AWS
    • Microsoft Azure
    • OpenAPI

What you receive

Yours to keep when the engagement ends, whether we carry on working together or not.

  • Production services

    Backend services and APIs, deployed and monitored.

  • API documentation

    Interactive, up-to-date documentation for every endpoint.

  • An automated test suite

    Tests that protect the API contract from regressions.

  • Architecture notes

    How the system fits together and why key decisions were made.

Common questions

The ones that come up in almost every first conversation about this work.

  • Usually a well-structured monolith to start. It is simpler to build and run, and parts can be split out later if scale or team size genuinely require it.

  • Yes. We regularly extend, refactor and stabilize existing systems rather than replacing them.

  • Through secure authentication, least-privilege access, input validation, dependency scanning and reviews built into the development process.