xptio · Software engineering

Dependable backend and web software, built to last.

Services, web applications and the integrations between them, designed to be understood, tested and run for years.

  • Backend services and APIs
  • Web applications
  • Ops that roll back

01 · Services

Software that has to keep working.

Backend services and APIs

Services with clear contracts, versioned interfaces and the tests that keep them honest.

  • REST
  • Messaging
  • Data models

Web applications

Fast, accessible applications that work on every screen and degrade gracefully without JavaScript.

  • Accessibility
  • Performance
  • Design systems

Integrations

Connecting systems that were never meant to talk: imports, exports, queues and the edge cases between them.

  • Interoperability
  • Validation
  • Reconciliation

Operations

Deployments that roll back on their own, logs worth reading and alerts that mean something.

  • CI/CD
  • Observability
  • Rollback

Modernisation

Moving long-lived systems forward in small, safe steps instead of risky rewrites.

  • Refactoring
  • Migration
  • Testing

02 · Approach

Four steps, repeated in small cycles.

  1. Understand

    Start from the problem

    Who uses the system, what must never break, and what “done” means.

  2. Design

    Make the shape visible

    Interfaces, data and failure modes written down before the code.

  3. Build

    Ship in small slices

    Each change tested, reviewed and deployable on its own.

  4. Run

    Own it in production

    Monitoring, security updates and fixes after launch.

03 · Principles

What every piece of work is held to.

  • Reliable by default

    Validation at every boundary, atomic writes, health checks and automatic rollback.

  • Secure from the start

    Least privilege, strict content security policies and no secrets in code.

  • Accessible to everyone

    WCAG 2.1 AA, keyboard paths and reduced-motion versions designed, not dropped.

  • Measured, not guessed

    Performance budgets and automated checks on every change.

  • Plain and documented

    Boring technology, readable code and decisions recorded where the next person looks.

  • Respectful of privacy

    Collect little, keep less, and say clearly what is stored.

04 · Questions

Short answers.

What does xptio do?

Dependable backend and web software, built to last. xptio builds backend services and APIs, web applications and the integrations between them, runs them in production and modernises long-lived systems in small, safe steps.

How does xptio work?

In four steps, repeated in small cycles: understand the problem and what must never break; design the interfaces, data and failure modes before the code; build in small slices that are each tested, reviewed and deployable; and run the software in production with monitoring, security updates and fixes.

What is every piece of work held to?

Six principles: reliable by default, secure from the start, accessible to everyone (WCAG 2.1 AA), measured rather than guessed, plain and documented, and respectful of privacy.

Does this site track visitors?

No. It sets no cookies for visitors, includes no third-party analytics or advertising trackers and does not store visitors’ IP addresses.

05 · Writing

Notes on building and running software.

The blog is not published yet. When the first articles go out they will be there and in its RSS and JSON feeds.