Ruby on Rails Development Services

Why Ruby on Rails

Ruby on Rails is a mature, full-stack web framework built around convention over configuration. It includes everything a typical web application needs — an ORM, routing, background jobs, email, file uploads, real-time features and testing — so small teams can deliver a lot of functionality quickly.

Many well-known SaaS products and marketplaces were built on Rails, and recent versions have modernised the framework with Hotwire for fast, interactive interfaces without a heavy JavaScript front end, built-in deployment tooling and database-backed job queues and caching. Rails remains a strong choice for products where development speed and maintainability matter more than raw performance.

When Ruby on Rails is the right choice

What we build with Ruby on Rails

Our Ruby on Rails toolkit

Upgrading an older Rails application

Many Rails applications are running on versions that no longer receive security fixes. Jumping straight to the latest version is risky, so we upgrade one minor version at a time. Each step runs the test suite, fixes deprecation warnings and updates gems, and ships to production before the next step begins.

1. Audit1 week

   Review Ruby, Rails and gem versions, test coverage and known vulnerabilities.

2. Add safety nets1–3 weeks

   Add tests around critical paths if coverage is thin, plus error monitoring.

3. Upgrade step by stepVaries

   Move through each version, resolving deprecations and incompatible gems.

4. ModerniseOptional

   Adopt newer features such as Hotwire or built-in job and cache adapters where they simplify the stack.

Typical problems we fix along the way include abandoned gems that block upgrades, slow pages caused by N+1 database queries and background job queues that silently fail. Each one is documented so your team understands what changed and why.

Rails versus other back-end frameworks

If you already have a healthy Rails application and a team that knows it, rewriting in another framework rarely pays off. Upgrading, adding tests and improving performance almost always delivers more value for less risk.

Common Rails performance fixes

• Eager loading to remove N+1 queries found with tools such as Bullet or APM traces
• Database indexes for slow queries identified in production logs
• Fragment and low-level caching for expensive views and calculations
• Moving slow work such as emails, exports and API calls into background jobs
• Pagination and streaming for large result sets

Hiring and maintaining a Rails team

Rails developers are fewer than JavaScript or Python developers, but experienced Rails engineers tend to be highly productive because the framework’s conventions mean less time debating structure. When we take over or extend a Rails application, we document setup, deployment and architecture decisions so the code stays approachable for any future developer. If you are building a new team, we can provide engineers for the build and help you hire and onboard your own people for the long term.

Rails architecture patterns that scale

Rails conventions work well for small and medium applications. As a codebase grows, a few additional patterns keep it maintainable without abandoning the framework’s strengths:

Testing a Rails application

• Model and service tests in RSpec or Minitest for business rules
• Request specs covering every API endpoint and permission check
• System tests with Capybara for the most important user journeys
• Factories instead of brittle fixtures for test data
• Brakeman for security scanning and RuboCop for consistent style in CI

Deploying Rails in 2026

Recent Rails versions ship with built-in options for queues, caching and WebSockets backed by the database, which can remove the need for extra services in smaller deployments.

Taking over an existing Rails codebase

1. Audit1–2 weeks

   Review Ruby and Rails versions, gems, test coverage, security warnings and hosting.

2. Stabilise2–4 weeks

   Fix urgent security issues, add monitoring and cover critical paths with tests.

3. Upgradeongoing

   Move through Rails versions one at a time with dual-boot where helpful.

4. Improveongoing

   Deliver new features while reducing technical debt sprint by sprint.

Durations are typical. See also legacy modernization.

Signs your Rails app needs attention

• Ruby or Rails versions that no longer receive security patches
• Page loads that have slowed as data has grown
• Tests that are flaky, slow or skipped
• Gems that are abandoned or block upgrades
• Deployments that require manual steps or downtime

Each of these is fixable without a rewrite. Most Rails applications can be modernised incrementally while the team keeps shipping features.

Questions to ask a Rails partner

• How do you approach Rails upgrades across several major versions?
• What is your standard for test coverage on new features?
• How do you monitor background jobs and failed webhooks?
• Will you document architecture and deployment for our team?
• How do you handle gems that are no longer maintained?

Clear answers to these show whether a partner can look after the application for years, not just deliver the next feature.

We also keep a written upgrade log for each Rails application, recording which gems were replaced, which deprecations were fixed and what remains, so future upgrades start from a clear picture rather than rediscovering the same issues.

Work with us

Part of our backend technologies. See also legacy modernization, SaaS development and maintenance & support.

This page is part of Backend Development Services — see the full overview for related services, approach and pricing.