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# Senior Ruby on Rails Developer

- **Company:** Run-time Group Ltd
- **Location:** Mitcham, UK
- **Experience:** Expert
- **Salary:** £100,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Cloud Computing, Continuous Integration, Data Stores, DevOps, Programming Tools, Elasticsearch, PostgreSQL, MySQL, Node.Js, Performance Tuning, Ruby on Rails, Redis, Ruby, Systems Architecture, Systems Integration, TypeScript, Web Platforms, Capybara, Test-Driven Development (TDD), ReactJS, Rspec, Large Language Models, Prompt Engineering, Heroku, Infrastructure Automation Frameworks, Graphql, Api Design, Docker, Legacy Systems
- **Published:** August 27, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5856707050

## About the Role

* Ruby and Ruby on Rails
 * Full-stack engineering experience with JavaScript, TypeScript, React, Hotwire, and Stimulus
 * Node.js and React exposure beneficial
 * API design experience with REST, GraphQL, and external integrations
 * Experience with data stores including PostgreSQL, MySQL, Redis, and Elasticsearch
 * Experience with async processing tools such as Sidekiq and Resque
 * Cloud and DevOps experience with AWS, Heroku, Docker, CI/CD pipelines, and infrastructure as code
 * Testing and quality experience with RSpec, Capybara, and TDD methodologies
 * Experience with security, performance tuning, and system hardening
 * Experience with AI and LLMs, including API integration, prompt engineering, and AI-enhanced features and developer tooling
 * Deep expertise in architecting, developing, and scaling full-stack web platforms
 * Experience guiding cross-disciplinary engineering teams
 * Ability to embed modern engineering practices for reliable, high-velocity delivery
 * Decisive, action-oriented approach with strong alignment to business strategy in fast-moving, product-centric environments

## Description

* Own end-to-end system architecture, ensuring solutions are scalable, maintainable, and delivered at pace
 * Partner closely with Product, Design, and Commercial teams to convert business objectives into robust technical plans
 * Drive engineering excellence through best practices, continuous improvement, and sustainable delivery processes
 * Lead the build-out and ongoing evolution of high-traffic Ruby on Rails platforms supporting significant commercial throughput
 * Modernise legacy systems while ensuring uninterrupted business operations
 * Introduce AI-powered enhancements to improve customer journeys and internal operational efficiency
 * Collaborate with stakeholders across pricing, quoting, and customer lifecycle domains to deliver impactful product improvements

Technologies:

 * AI
 * API
 * AWS
 * CI/CD
 * Cloud
 * DevOps
 * Docker
 * ElasticSearch
 * GraphQL
 * Heroku
 * JavaScript
 * MySQL
 * PostgreSQL
 * REST
 * RSpec
 * Rails
 * React
 * Redis
 * Ruby
 * Security
 * TDD
 * TypeScript
 * Web
 * NodeJS, We are supporting a client that is transforming the automotive space. The role is for a Senior Engineer (Ruby on Rails) joining a fast-moving, product-centric environment where we focus on high-velocity delivery, modern engineering practices, and meaningful product and commercial impact. The role includes the opportunity to work across Product, Design, Commercial, pricing, quoting, and customer lifecycle domains, while helping evolve high-traffic platforms and introduce AI-driven enhancements.


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