Ruby on Rails Developer

MRJ Recruitment; Greater Manchester; Remote; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Flexible working arrangement

Monthly meetups in Manchester

Supportive team culture

Job summary

A leading recruitment agency is seeking a Ruby Developer to join a remote-first team focused on building robust SaaS applications. You will contribute across the entire development lifecycle, emphasizing clean code and maintainability. Ideal candidates have strong experience with Ruby on Rails and a passion for quality software development while participating in an agile product team. Monthly meetups in Manchester encourage team bonding and collaboration, creating a supportive work culture.

Qualifications

• Strong commercial experience writing Ruby (Rails) in production environments.
• Good understanding of object-oriented design, method lookup, and module usage in Ruby.
• Experience with testing strategies, and when to use unit vs integration tests.

Responsibilities

• Write clean, idiomatic Ruby code in a collaborative team.
• Design scalable, performant systems focusing on composition over inheritance.
• Lead writing and maintaining unit and integration tests.

Skills

Ruby (Rails)

Object-oriented design

CI/CD

Testing strategies

AWS

Tools

Docker

PostgreSQL

GraphQL

Job description

Ruby Engineer – Build with Purpose, Solve Complex Problems

Remote-first (UK-based – ideally North West for occasional meetups)

Ruby on Rails | PostgreSQL | AWS | GraphQL | Docker | CI/CD

Looking for more than just shipping features?

This is your chance to work on a modern, growing platform where code quality, scalability, and purpose all matter.

We’re working with one of the UK’s most exciting SaaS companies, they’re growing fast, staying humble, and quietly transforming their sector with powerful, thoughtfully built tech.

As a Ruby Developer, you’ll be joining a collaborative, curious, and experienced team, helping to scale a product that solves real-world problems for thousands of users, with a strong emphasis on clean code, maintainability, and smart design decisions.

What You’ll Be Doing

You’ll work in a product-focused team, contributing across the full development lifecycle, with a strong focus on Ruby fundamentals and backend quality:

• Writing clean, idiomatic Ruby code (Rails-based) with strong architectural thinking
• Applying solid knowledge of Ruby method lookup, modules (include, prepend, extend), and metaprogramming principles
• Helping design scalable, performant systems that follow composition over inheritance where appropriate
• Supporting design decisions around business logic placement in Rails (models vs. services vs. concerns), including validations, callbacks, and modular structure
• Leading on writing and maintaining unit and integration tests (RSpec) — and knowing the difference
• Contributing to optimisation efforts in both code and database (e.g. indexing, eager loading, partitioning)
• Participating in pair programming, peer reviews, and cross-functional collaboration with product and design
• Helping evolve the system architecture (SOLID principles, microservices where appropriate)
• Getting involved in CI/CD pipelines, infrastructure work (AWS, Docker, Terraform), and occasionally debugging tricky production issues

What You’ll Bring

You don’t need to tick every box, but we’re looking for Ruby Engineers who can go beyond just Rails and understand the underlying concepts:

• Strong commercial experience writing Ruby (Rails) in production environments
• Good understanding of object-oriented design, method lookup, and module usage in Ruby
• Experience with testing strategies, and when to use unit vs integration tests
• Comfortable with CI/CD, Git, and working in a structured, agile product team
• Familiarity with cloud-native tools (AWS preferred) and containerised development
• A keen interest in improving code quality, performance, and maintainability
• Comfortable reading, reasoning about, and writing scalable systems that prioritise readability and clarity over cleverness

Why Join?

• Remote-first setup with flexible working with monthly Manchester meetups
• A calm, curious, and supportive team culture, no egos, no burnout
• A platform that’s growing rapidly, with real users, real complexity, and real business value
• Strong focus on clean code, shared ownership, and continual learning
• Work with engineers who genuinely care about good design, test coverage, and the craft of development

If you’re a Ruby Developer looking to go deeper, grow your impact, and work on something meaningful, this could be a perfect fit.

Drop us a message or apply now to learn more.