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Ruby on Rails

Custom Ruby on Rails Development

Rails applications built, upgraded, and rescued — including the mature ones carrying ten years of business logic that nobody wants to touch.

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Overview

Mature Rails apps are usually valuable, not disposable.

A Rails application that has been running for a decade contains an enormous amount of business knowledge — rules, edge cases, and decisions that exist nowhere else in writing. The instinct to rewrite it is common and usually wrong: rewrites lose the edge cases, and the edge cases are frequently the reason the business works the way it does.

Most of what we do with older Rails applications is make them safe to change again. That means a test suite you can trust, dependencies brought current, and the upgrade path walked one version at a time. New builds get the same discipline from the beginning, which is why they do not become the other kind of application.

Capabilities

What's included

  • Custom application developmentNew Rails applications, APIs, and internal systems built to be maintained.
  • Rails & Ruby upgradesLegacy versions brought current one step at a time, with the suite green at each step.
  • Test suite rescueSlow, flaky, or absent suites made trustworthy — the prerequisite for everything else.
  • Hotwire & TurboModern interactivity without adopting a separate front-end framework and its build chain.
  • Background jobsSidekiq or Solid Queue with retries, idempotency, and visible failures.
  • API developmentVersioned JSON APIs with authentication, serialisation, and documentation.

How We Work

Our approach

  1. 01

    Assess

    Dependencies, Ruby and Rails versions, suite health, and what the real constraints are.

  2. 02

    Stabilise

    Make the test suite trustworthy first — everything after this depends on it.

  3. 03

    Upgrade or build

    One version at a time, or new work shipped in small reviewable increments.

  4. 04

    Handover

    Runbook, environment setup, and documentation for whoever maintains it next.

What You Get

Commitments

Yours
Source Code

In your repository and your accounts from week one.

Green
Before Upgrading

A trustworthy test suite established before any version jump.

Fixed
Discovery Price

Scoped and priced before any build commitment.

Common Questions

Questions we get asked

Our Rails app is on an old version and nobody wants to touch it. Where do you start?

With the test suite, almost always. Upgrading an application you cannot verify is guesswork, so establishing coverage over the critical paths comes first — it is what makes the rest predictable.

Should we rewrite instead of upgrading?

Rarely. A ten-year-old Rails app encodes business rules that exist nowhere else, and rewrites tend to lose exactly those. We will give you both estimates honestly, but the upgrade is usually both cheaper and less risky.

Can you maintain an app we inherited with no documentation?

Yes, and it is a common starting point. The first deliverable is usually a written account of what the application does and where the risks are.

Get in Touch

Tell us about
your Rails app.

Tell us what you have and what it needs to do. We respond within one business day with a scope and a price.

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