1 to 25 of 70 Ruby on Rails Jobs in the UK

Senior Engineer (Ruby on Rails) is required to join one of our clients, who are transforming the automotive space. You will havedeep expertise in architecting, developing, and scaling full-stack web platforms, particularly within the Ruby on Rails ecosystem. Experienced in guiding cross-disciplinary … decisive, action-oriented approach and a strong ability to align technical direction with business strategy in fast-moving, product-centric environments. Key requirements: Ruby & Ruby on Rails Full-Stack Engineering: JavaScript, TypeScript, React, Hotwire, Stimulus Node.js & React exposure beneficial API Design: REST, GraphQL, external integrations Data ...

Description A Senior Engineer (Ruby on Rails) is required to join one of our clients, who are transforming the automotive space. You will havedeep expertise in architecting, developing, and scaling full-stack web platforms, particularly within the Ruby on Rails ecosystem. Experienced in guiding … decisive, action-oriented approach and a strong ability to align technical direction with business strategy in fast-moving, product-centric environments. Key requirements: Ruby & Ruby on RailsFull-Stack Engineering: JavaScript, TypeScript, React, Hotwire, StimulusNode.js & React exposure beneficialAPI Design: REST, GraphQL, external integrationsData Stores: PostgreSQL, MySQL, Redis, ElasticsearchAsync ...

leading clients, we are searching for a highly experienced Senior Software Engineer (Ruby & AI Platform) to join their AI Events team. You'll work closely with engineering, product, and design to build the event-driven infrastructure and trigger systems that power automated AI workflows across the software development lifecycle. … Architect systems for high availability, reliability, and throughput, ensuring events are processed effectively at scale Build and maintain production functionality within a large, established Ruby on Rails monolith Influence product and architecture direction by proposing iterative solutions to complex technical challenges across a multi-service environment Collaborate ...

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 … priority in the year ahead. In this role, you'll go beyond using AI tools and help define how we design, build, and iterate on AI-assisted and agentic CI experiences. You'll set standards for what good looks like across our AI agent portfolio, including how we measure ...

Senior Engineer (Ruby on Rails) is required to join one of our clients, who are transforming the automotive space. You will havedeep expertise in architecting, developing, and scaling full-stack web platforms, particularly within the Ruby on Rails ecosystem. Experienced in guiding cross-disciplinary ...

this? The more we automate, the more human judgement matters. AI gives people back time, and we expect them to spend it on the things no model can replicate: conversations, trust, craft and team judgement. We hire to a high bar. You'll work with people who push … every person at Raylo to do the best work of their lives, and enjoy doing it. Our Core Valuesð¡ Be deeply curious – We thrive on innovation through diverse approaches, views, and people.ð Walk in your customer's shoes – To build the best products and make the best decisions ...

Ruby/JavaScript Web Developer – Rails Fintech 50 Quant Capital is urgently looking for a Ruby/JavaScript Web Developer to join our high profile client. Our client is a brand new investment firm driven by technology. They are well known in the media as solving … people in almost 6 months. As their product is web based this position is key to growth and stability. The position is for a Ruby Web Application Developer to build new and maintain existing Rails applications communicating with a Java API. The developer will be working within ...

## Software Engineer II - Backend (Ruby/PHP/Scala)Applyremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted 6 Days Agojob requisition id: JR102659# **Welcome to the Agentic Commerce Era**## At Commerce, our mission is to empower businesses to innovate, grow, and thrive with … possible in their role. Our purpose is to help businesses confidently solve complex commerce challenges so they can build smarter, adapt faster, and grow on their own terms. If you want to be part of a team of bold builders, sharp thinkers, and technical trailblazers who shape the future ...

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 ...

Ruby Developer – Full Stack, Rails Javascript, TDD Quant Capital is urgently looking for a Ruby Developer to join our high profile client. Our client is in this year's fintech50 they are a disruptive force in the global investment and payments space. The office is casual with … compete tech focus (quiet coding area, loud games room).The position is for a senior Ruby Developer to build a new Rails application communicating with a Java API. The current team has 5 bleeding edge ruby and frontend developers who need some help to keep them from ...

Ruby Developer – HTML5, Rails Javascript, TDD Quant Capital is urgently looking for a Ruby Developer to join our high profile client. Our client is in this year's fintech50 and well known to disrupt the global payments and Foreign exchange markets. The position is for a hands … level or senior Ruby Developer to build new and maintain existing Rails applications communicating with a Java API. The current team has 5 bleeding edge ruby and frontend developers who need some help to keep them from evangelising the world off. The Ruby Developer will ...

biggest grassroots football club management platforms in the UK. We support over 2,000 football clubs and 250,000+ coaches, players, parents and guardians on the platform, and we’re now expanding into Italy, Spain and the rest of Europe. We’re a scale-up growing rapidly, and engineering … Engineering Team We’re organised into three squads: Pitchside Experience, Clubhouse Experience and Platform. This role sits in Pitchside Experience: the squad focused on what happens matchday: team sheets, live updates and the tools coaches, players and parents use on the day. Our engineers come from a variety ...

Cleo is looking for Senior Engineers II to work on our Ruby on Rails monolith, collaborating with engineers, designers and analysts to deliver features that improve users' financial health. The role emphasizes mentoring, leadership, and delivering with agile practices. You’ll contribute to data models, APIs ...

portions. As a B-Corp certified company, you're joining a sustainable business that genuinely cares about our people, our products and our impact on the planet. Our goal is simple: to help dogs live healthier, happier, and longer lives, while leaving humans smiling after every interaction. … quality, maintainable, modular, and reliable code is shipped across our acquisition stack. Heavily Backend-Weighted: Your day-to-day focus will be heavily centered on our backend infrastructure (Ruby on Rails, PostgreSQL, GraphQL) to manage discount APIs, optimise session architectures, and support core functionality. We have ...

Junior Ruby Developer – HTML5, Rails Javascript, TDD Quant Capital is urgently looking for a Junior Ruby Developer to join our high profile client. Our client is in this year's fintech50 and well known to disrupt the global payments and Foreign exchange markets. The position … hands Junior Ruby Developer to build new and maintain existing Rails applications communicating with a Java API. The current team has 3 bleeding edge ruby and frontend developers who need some help to keep them from evangelising the world off. The Ruby Developer will be working ...

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 … they can start using the Duo Agent Platform with minimal friction. The second is repository and background flows: autonomous and scheduled agents that work on a customer's codebase on their behalf. This work is central to how GitLab delivers AI-powered automation on repositories. ...

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 … they can start using the Duo Agent Platform with minimal friction. The second is repository and background flows : autonomous and scheduled agents that work on a customer's codebase on their behalf. This work is central to how GitLab delivers AI-powered automation on repositories. ...

remote) Office: United Kingdom Remote: UK About the company About Cleo At Cleo, we're not just building another fintech app. We're embarking on a mission to fundamentally change humanity's relationship with money. Imagine a world where everyone, regardless of background or income, has access … Cleo’s success as we scale, while growing alongside a company that’s scaling fast, this might be your perfect fit. Follow us on LinkedIn to keep up to date with new product features and insights from the team. About the role At Cleo, we care far more about ...

expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact. About You: You are a motivated and adaptable professional with a strong analytical mindset and a passion … approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are looking for an experienced Ruby Backend Developer to build and maintain scalable, secure, and high-performance backend systems. Key Responsibilities: You will part of a professional software engineering team ...

expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact. About You: You are a motivated and adaptable professional with a strong analytical mindset and a passion … approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are looking for an experienced Ruby Backend Developer to build and maintain scalable, secure, and high-performance backend systems. Requirements Key Responsibilities: You will part of a professional software engineering ...

Contract Ruby Developer Up to £425 per day Outside IR35 6 Months Remote I'm currently looking for an experienced Ruby Developer to join a growing engineering team on an initial 6-month contract, with the potential for extension. This is a hands-on role where … youll be working on the development and enhancement of modern software applications, collaborating closely with a wider engineering and product team. What youll be doing Designing, developing and maintaining scalable applications using Ruby Building clean, maintainable and well-tested code Developing and integrating APIs and backend services Collaborating ...

Team Lead Ruby/Frontend DeveloperQuant Capital is urgently looking for a Lead Frontend Ruby or JavaScript Developer to join our high profile client. Our client is a brand new investment firm driven by technology. They are well known in the media as solving one of the common … almost 6 months. As their product is web based this position is key to growth and stability. The position is for a hands on Lead Developer to build new and maintain existing frontend applications and sites communicating with a Java API. The current team has 2 bleeding edge ruby ...

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 … roleYou will engineer security improvements to the GitLab product as well as building and maintaining the tools we use to detect and prevent abuse on our SaaS platforms. A strong software engineering background with experience in large Ruby/Rails codebases is required. As a senior engineer ...

GitLab is seeking a Senior Backend Engineer (Ruby) for the Plan: Spec-Driven Development team. This is a full-time, remote role with work location: UK, focusing on Ruby on Rails, Python, GraphQL, PostgreSQL and related backend systems. You’ll own end-to-end backend ...

working with the developers to understand their implementation of the requirements. Testing and quality is a team effort, but the QA should focus on keeping these standards high in the team. QA Engineer will be part of a development team working through new projects and maintenance tasks. They will … have a specific focus on performance and load testing, being able to offer advice, strategy and direction to the test team on these issues. They will be hands on with these tasks and also overseeing this type of testing across the team. The QA Engineer will also ...