1 to 25 of 98 Permanent Ruby on Rails Jobs

Full Stack Ruby On Rails Software Developer

Location
Farnborough, England, United Kingdom
About The Role Full Stack Ruby On Rails Software Developer At iRock School of Music, we’re on a mission to transform the way children experience music education. Through high-energy, band-based sessions in primary schools across the UK, we give thousands of children each … team at iRock School of Music. This role gives you the chance to contribute to the development of our platform, with a focus on clean, scalable code, a strong user experience, and meaningful impact. You’ll be working across the full stack, taking ownership of features from concept through ...

Ruby on Rails Developer

Location
Greater London, England, United Kingdom
title – Ruby on Rails Developer Client Location – London, United Kingdom Remote work offering – 80% (hybrid, 1 day per week on site in London) Client Industry – UK Public Sector Contract Length – 12 months (extendable up to 36 months) Contract type – Inside IR-35 Project focus Join … multidisciplinary agile team building and modernising citizen-facing digital services for a UK public sector organisation. You’ll develop new features on established Ruby on Rails applications, help migrate data and functionality away from legacy systems, and deliver accessible, secure services in line with the government ...

Ruby on Rails Software Engineer

Location
Reading, Berkshire, United Kingdom
Runtime Group have partnered with a Software house who are looking for an experienced Ruby on Rail Engineer to join them on a 6 month contract, Outside IR35, with at least one day a week in office. Create and launch awesome production features using Large Language Models … that wow users Bring legacy systems into the modern age without skipping a beat in daily operations You've got a solid grasp of Ruby and Ruby on Rails, and you can whip up APIs and master MVC like nobody's business When it comes ...

Senior Backend Engineer (Ruby)

Location
Greater London, England, United Kingdom
Senior Backend Engineer (Ruby) Role type - Permanent Location - London (Hybrid) About Zuno Zuno is the cutting-edge technology platform powering the success of home heating and cooling experts, BOXT. Zuno is scaling for significant growth by continually developing its proprietary tech stack to empower both our installers … technical feasibility from the outset. In this role, you will be responsible for designing and optimising high-performance APIs and complex business logic using Ruby on Rails. While your focus is backend, you will work closely with frontend engineers to define API contracts and ensure seamless integration with ...

Staff Engineer

Location
Greater London, England, United Kingdom
nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in. Follow us on LinkedIn for new features and the occasional roast Meet the Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans … Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here ...

Staff Engineer United Kingdom (Hybrid)

Location
United Kingdom
nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in. Follow us on LinkedIn for new features and the occasional roast. Meet the Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans … Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here ...

Backend Engineer (Ruby), Plan: Spec-Driven Development

Location
United Kingdom
# Backend Engineer (Ruby), Plan: Spec-Driven DevelopmentGitLabSalary not statedFull-timeremote· seniorUKrubyrailspythonpostgresgraphqlListed via Jobicy · posted 20 Oct 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionGitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security … technology that transforms how the world develops software.\\*Fortune 500 is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune ...

Tech Lead Manager | UK & EU (hybrid + remote)

Location
United Kingdom
nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in. Follow us on LinkedIn for new features and the occasional roast Meet The Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans … Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here ...

Backend Engineers (Ruby)

Location
Greater London, England, United Kingdom
nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in. Follow us on LinkedIn for new features and the occasional roast Meet the Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans … Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here ...

Lead Software Engineer - Hardware Lifecycle

Location
Cwmbran, Wales, United Kingdom
Help grow a safer, cleaner, healthier future for everyone, every day.Job Title: Lead Software Engineer – Hardware LifecycleReports to: Head of Digital DeliveryLocation: Hybrid, on-site 1 day per week (with more as needed) in Cwmbran, Wales.Job Type: PermanentAbout UsWe are a pioneer in network infrastructure monitoring with IoT technology … deploy, run and renew.We're looking for an experienced Lead Software Engineer to lead the transformation of this software. Our strategy is to focus on three core products:An installation and deployment app, used by field engineers (mobile)A fleet monitoring cloud application for internal use (Ruby on ...

Software Engineer ParcVu powered by Booking Experts · Chester ·

Location
Chester, England, United Kingdom
just build software; we build the engine that holiday parks and resorts across Europe rely on every single day. Our platform is growing in terms of users, data, and functionality. As a Software Engineer, you are responsible for making sure our systems remain scalable, performant, and reliable. You aren … processes and deliver exceptional guest experiences. We work with hospitality businesses across Europe. Our mission is simple: to help hospitality entrepreneurs spend less time on administration and more time focusing on their guests. As part of our team, you'll join a fast-growing SaaS company where innovation ...

Lead Software Engineer – Hardware Lifecycle

Location
Cwmbran, Wales, United Kingdom
renew. We’re looking for an experienced Lead Software Engineer to lead the transformation of this software. Our strategy is to focus on three core products: An installation and deployment app, used by field engineers (mobile). A fleet monitoring cloud application for internal use (Ruby on … Rails). A customer fleet administration cloud application (C# .NET and React). Today we have five. Two existing mobile apps need to be combined and rationalised into the single installation and deployment app, and a legacy desktop application will receive maintenance changes only until our support commitments end. ...

Senior Backend Engineer, Database Excellence (Ruby)

Location
United Kingdom
# Senior Backend Engineer, Database Excellence (Ruby)GitLabSalary not statedFull-timeremote· seniorUKrubypostgresrailssqlListed via Jobicy · posted 31 Oct 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionGitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security … technology that transforms how the world develops software.\\*Fortune 500 is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune ...

Platform Engineer: Scalable AWS, CI/CD & Observability

Location
Greater London, England, United Kingdom
looking to hire engineers to join the team. We’re really lucky to have an Engineering team spread across three jurisdictions working on the Hnry product. While that gives us the opportunity to hire great people globally, we’re looking for a Platform Engineer to join our founding London … business to support platform needs and improve developer experience Design, build and maintain improvements to the infrastructure and platform of Hnry, currently hosted on AWS Improve the reliability, availability and performance of our platform Evolve and optimise our CI/CD pipelines to enable fast, safe and consistent deployments ...

Mid-level Developer

Location
Brighton, England, United Kingdom
Backed by private equity investment and with customers across the UK, Europe, the US, and APAC, we're expanding our team and doubling down on our mission: to set the standard for information security management and deliver compliance confidence through our exceptional people, process, and platform. That's where … without drama, and wants to make a real contribution in a small team. What you'll be doing Build and maintain product features in Ruby on Rails, owning them end to end Work confidently across legacy and modern parts of the application Refactor and pay down tech ...

Senior Software Engineer (Full-Stack)

Location
Greater London, England, United Kingdom
historical cash flows, sales data, and treasury information to automatically select optimal forecasting algorithms and improve accuracy by over 30%. You’ll work on sophisticated Ruby on Rails and React software that turns diverse financial data into clear analysis, giving customers sharp insight and forecasting … built to scale across enterprise customers and their data Own the data layer, schema design, query performance, and data integrity - with a strong emphasis on PostgreSQL and SQL more broadly Write and maintain thorough test coverage using RSpec, treating testing as a first-class part of delivery Package ...

Hybrid Ruby on Rails Developer - Public Sector

Location
Greater London, England, United Kingdom
Darwin Recruitment is partnering with a UK public sector organisation to hire a Ruby on Rails Developer in London. The role is hybrid, offering 80% remote work with 1 day per week on site in London. You will develop features on established Rails applications ...

Sr. Software Engineer, Fullstack (UK)

Location
Greater London, England, United Kingdom
thrives at the intersection of craft and scale. You'll design and deliver large-scale, multi-tenant cloud services — with a relentless focus on availability, fault-tolerance, and elegant architecture. You'll set the bar for engineering quality and help elevate those around you. Responsibilities Core Engineering & Ownership: Build … into intuitive UI, making informed technical trade-offs in the face of ambiguity. Collaboration (Engineering Standards): Champion engineering best practices across teams and collaborate on solving complex, high-impact problems. Minimum Qualifications Bachelor's degree in Computer Science or related field, or equivalent experience. 8+ years building reliable, performant ...

Ruby on Rails Backend Engineer for AI Financial Assistant

Location
Greater London, England, United Kingdom
Cleo is hiring Backend Engineers to join cross-functional squads and build features that improve users' financial health. You will work on our Ruby on Rails monolith, develop data models, APIs, and business logic services, and collaborate with product, design and analytics to ship impactful changes. ...

Intermediate Software Engineer @ Hnry

Location
Greater London, England, United Kingdom
really lucky to have an Engineering team spread across three jurisdictions working on the Hnry product. While that gives us the opportunity to hire great people globally, we’re always keen to hear from those interested in joining our founding team in London. We’re really proud … team for feedback Collaborate with and support other members of the wider Hnry team Act as a mentor and provide support to Junior developers on the team Qualifications Have at least two years experience working as a developer Have excellent communication and collaboration skills – we work together and succeed ...

Engineering Manager

Location
United Kingdom
Remote | Full-Time | UK About Us At Medify, we're on a mission to widen access to medicine and healthcare careers through world-class digital learning experiences. Since 2009, we've helped thousands of students prepare for high-stakes admissions tests, and we're continuing to invest … continue to grow, we're looking for an experienced Engineering Manager to lead, mentor and develop our engineering team while remaining hands-on in building the platform that powers Medify. The Role As an Engineering Manager, you'll play a pivotal role in shaping both our engineering culture ...

Lead Engineer, AI Platform

Location
United Kingdom
Quality engineering team at Circle owns the foundation for measuring, diagnosing, and improving the quality of Circle's AI-powered features. This team focuses on building the infrastructure to measure, diagnose, and improve production AI systems, rather than ML research or model training. We're looking for a Lead … Agents are working well, where to improve them, and how to make them faster and more cost-efficient. This is a hands-on player-coach role. You’ll also lead and manage the AI Quality engineering team, with an ambitious and growing roadmap. If you're excited about making ...

Senior Software Engineer

Location
Northern Ireland, United Kingdom
thought, background, and perspective is critical to creating the best products and experiences for our customers. About the role This is a hands-on leadership-by-example role for a senior software engineer who thrives on building impactful software. You will architect scalable systems that simplify benefits access … scalable software solutions, contributing across the full development lifecycle from requirements and solution architecture through testing and production Build and scale applications using Ruby on Rails, React, and AWS cloud architecture, while championing AI-assisted development practices across the team Partner closely with product managers, designers, engineers ...

Full-Stack Ruby on Rails Engineer (Hybrid)

Location
Farnborough, England, United Kingdom
iRock School of Music is seeking a Full Stack Ruby On Rails Software Developer to join a mission-driven team shaping youth music education. You will develop scalable Rails apps, write clean code and tests, and drive features from concept through deployment across backend and frontend. … Work across the stack in a hybrid Farnborough role with a focus on user experience and impact, collaborating with cross-functional teams to deliver meaningful software for thousands of children and schools across #J-18808-Ljbffr ...

Ruby on Rails Engineer - Build Impactful Childcare Platform

Location
Greater London, England, United Kingdom
Route Recruitment Limited in London is building a marketplace to help families find high quality, flexible childcare. As an engineer on the team, you’ll design and build tech to solve complex matching problems, giving families and nannies a solution that just works and speeding up nanny recruitment … training processes. The stack includes Ruby on Rails for the backend, PostgreSQL and Redis, with ES6 frontend tooling and Tachyons. #J-18808-Ljbffr ...