Gravitas Recruitment Group (Global) Ltd
Ruby on Rails Developer - £500/DAY OUTSIDE IR35
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Ruby on Rails Developer - £500/DAY OUTSIDE IR35
Ruby on Rails Developer - £500/DAY LTD CO OUTSIDE IR35. 80% REMOTE (1 DAY PER WEEK IN OFFICE - LONDON)
We are looking for an experienced Contract Back-End Developer with deep expertise in Ruby on Rails to join our engineering team. This is a backend-focused role with Ruby on Rails, Postgres, API, REST API & TDD where you'll play a key role in designing, building and maintaining scalable, high-performance applications. ANY FRONT-END SKILLS IN REACT / NEXT / JAVASCRIPT A BONUS BUT NOT ESSENTIAL.
You'll work closely with Product, Design and Engineering teams to deliver new features, improve platform performance and drive technical excellence across our applications. This is an ideal opportunity for a contractor who enjoys owning technical solutions, solving complex backend challenges and contributing to modern frontend experiences where required.
Backend Development with Ruby On Rails
- Design, develop and maintain scalable Ruby on Rails applications and services
- Build robust, secure and well-documented RESTful APIs that power customer and installer platforms.
- Design efficient database schemas and optimise Postgres performance, including query optimisation, indexing, locking strategies and eliminating N+1 issues.
- Develop scalable backend architecture including background processing, caching, asynchronous jobs and third-party integrations
- Write clean, maintainable, well-tested code following engineering best practices including Test-Driven Development (TDD), Continuous Integration and Continuous Delivery
- Diagnose and resolve production issues, ensuring application performance, reliability and scalability.
- Continuously improve platform architecture, code quality and engineering process
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Technical Leadership
- Own features from technical discovery through to production deployment.
- Collaborate with Product Managers to shape technical solutions, estimate work and identify delivery risks.
- Break complex business requirements into well-defined technical deliverables.
- Participate in architecture discussions and influence technical direction.
- Lead by example through high-quality engineering practices and constructive code reviews.
- Mentor other engineers and promote a culture of continuous learning and technical excellence.
- Identify opportunities to improve development tooling, CI/CD pipelines and engineering workflows.
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Essential Skills & Experience
- 6+ years' commercial software development experience.
- Expert-level Ruby on Rails development experience with a strong backend engineering background.
- Strong experience designing scalable APIs, backend services and distributed systems.
- Solid understanding of Object-Oriented Analysis & Design (OOAD) and software engineering principles.
- Strong PostgreSQL experience, including schema design, SQL optimisation and database performance tuning.
- Experience implementing background workers, caching strategies and asynchronous processing.
- Experience writing automated tests using RSpec and maintaining high test coverage.
- Commercial experience with React and Next.js, including component-based development and API integration.
- Experience working within Agile software development teams.
- Strong Git workflow knowledge, including Pull Requests and Code Reviews.
- Excellent problem-solving skills with the ability to work independently as well as collaboratively.
- Passion for writing simple, clean, maintainable and efficient code.
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