24 of 24 Ruby on Rails Jobs in the City of London

Ruby Developer £500-£550 per a day - Inside IR35 3-6 Month Contract Remote Working We are seeking an experienced Ruby Developer to join our growing government clients. This is an excellent opportunity to contribute to significant projects, working on complex systems and delivering high-quality solutions. Key Responsibilities: Design, develop, and maintain high-performance, scalable applications … using Ruby on Rails. Build and integrate robust APIs, ensuring seamless communication between various systems. Collaborate closely with cross-functional teams, including product managers, designers, and other developers, to define, design, and ship new features. Write clean, maintainable, and efficient code, following best practices and coding standards. Participate in code reviews, contributing to a culture of continuous improvement. … Troubleshoot, debug, and upgrade existing systems. Contribute to the entire application lifecycle, focusing on coding, debugging, and testing. Essential Skills & Experience: Strong commercial experience as a Ruby Developer, with a proven track record of delivering complex projects. Demonstrable strong experience working on APIs, including design, development, and integration (RESTful, GraphQL). Proficiency in Node.js for specific backend More ❯

Job Title: Senior Ruby on Rails Developer (Backend) Location: London (Hybrid – 1 day per week in office) Salary: Up to £90,000 - 100,000 Contract Type: Full-time, Permanent Working Hours: Fully flexible hours About the Role We’re looking for a Senior Ruby on Rails Developer to join my clients team and take … our platform. This is a fantastic opportunity for someone who thrives in a mature, autonomous environment and enjoys contributing to both code and culture. You’ll be working with Ruby on Rails as your primary language, with opportunities to apply your Python knowledge where needed. We’re hosted on AWS, and experience with cloud infrastructure is … collaborative, and chatty team that values proactive communication, problem-solving, and a sense of humour. What You’ll Do Lead the design and development of scalable backend services using Ruby on Rails Build and maintain RESTful APIs to support web and mobile platforms Apply best practices for code quality, testing, and deployment Collaborate closely with product managers More ❯

Exciting Opportunity for Senior Full Stack Ruby Developers in the UK! - Tech for Good I am working exclusively with a client in the Edtech space looking to expand their stable and growing team! We are looking for someone who is technically capable with good soft skills who would be interested in working for a company with a great mission. … Position: Senior Full Stack Ruby Developer Location: UK Salary: Up to £80,000 per annum About the Company: Join a stable and profitable EdTech platform that is the market leader for their niche with plans to expand its product offering. Tech Stack: Ruby on Rails React (nice to have) AWS Key Requirements: Strong communication skills Proven More ❯

leads to join their high-performing team. This fully remote role offers the chance to contribute to cutting-edge projects for an innovative and fast-growing company. Travel for on-site collaboration once a month will be fully covered. 🌳 Benefits Package 🌳 Basic Salary : £75,000 - £100,000 (based on experience) Bonus : Up to 15% Pension : Up to … Amazing Holiday Allowance : + bank holidays Birthday Off Private Healthcare Comprehensive Pension Plan 🌳 Tech Stack 🌳 Languages: Ruby-on-Rails, Java, Python, C#, VueJs, Typescript/Angular/React Cloud: Amazon Web Services (AWS) Databases: PostgreSQL, DynamoDB Additional Tools & Frameworks: GraphQL, REST APIs, Software Design Patterns – TDD, DDD, Agile methodologies: Scrum and Kanban 🌳 Key Responsibilities 🌳 Full-Stack Development … a fast-growing startup , backed by Series A funding and poised for massive success. Work remotely with a fully remote-first team , with fully-paid monthly travel for occasional on-site collaboration. Join a company committed to cutting-edge technologies , innovation , and high-impact projects that drive digital transformation. Collaborate with a team of talented developers in a supportive More ❯

leads to join their high-performing team. This fully remote role offers the chance to contribute to cutting-edge projects for an innovative and fast-growing company. Travel for on-site collaboration once a month will be fully covered. Tech Stack : We’re looking for Tech leads who want to still be hands on whilst leading a number … with a strong foundation in both front-end and back-end technologies , a solid understanding of Object-Oriented Design , and a passion for learning and embracing new tech. Languages : 🌳 Ruby-on-Rails, Java, Python, C# 🌳 VueJs, Typescript/Angular/React Cloud : 🌳 Amazon Web Services (AWS) Databases : 🌳 PostgreSQL, DynamoDB Additional Tools & Frameworks : 🌳 GraphQL 🌳 REST APIs 🌳 Software Design … a fast-growing startup , backed by Series A funding and poised for massive success. Work remotely with a fully remote-first team , with fully-paid monthly travel for occasional on-site collaboration. Join a company committed to cutting-edge technologies , innovation , and high-impact projects that drive digital transformation. Collaborate with a team of talented developers in a supportive More ❯

leads to join their high-performing team. This fully remote role offers the chance to contribute to cutting-edge projects for an innovative and fast-growing company. Travel for on-site collaboration once a month will be fully covered. We’re looking for Tech leads who want to still be hands on whilst leading a number of technical … with a strong foundation in both front-end and back-end technologies , a solid understanding of Object-Oriented Design , and a passion for learning and embracing new tech. Languages : ? Ruby-on-Rails, Java, Python, C# ? VueJs, Typescript/Angular/React Cloud : ? Amazon Web Services (AWS) Databases : Additional Tools & Frameworks : ? GraphQL ? REST APIs ? Software Design Patterns – TDD … a fast-growing startup , backed by Series A funding and poised for massive success. Work remotely with a fully remote-first team , with fully-paid monthly travel for occasional on-site collaboration. Join a company committed to cutting-edge technologies , innovation , and high-impact projects that drive digital transformation. Collaborate with a team of talented developers in a supportive More ❯

Leads to join their high-performing team. These fully remote roles offer the chance to contribute to cutting-edge projects for an innovative and fast-growing company. Travel for on-site collaboration once a month will be fully covered. Tech Stack : We’re looking for Tech leads who have a strong foundation in both front-end and back-end … embracing new tech. You dont have to have all the languages but just some and you will be taught the rest, Strong object orientated design is a must. Languages : 🌳 Ruby-on-Rails, Java, Python, C#, PHP 🌳 VueJs, Typescript/Angular/React Cloud : 🌳 Amazon Web Services (AWS) Databases : 🌳 PostgreSQL, DynamoDB Additional Tools & Frameworks : 🌳 GraphQL 🌳 REST APIs 🌳 Software … a fast-growing startup , backed by Series A funding and poised for massive success. Work remotely with a fully remote-first team , with fully-paid monthly travel for occasional on-site collaboration. Join a company committed to cutting-edge technologies , innovation , and high-impact projects that drive digital transformation. Collaborate with a team of talented developers in a supportive More ❯

Senior Ruby Developer - Up to £100,000 - SaaS Salary: Paying £70,000 - £100,000 depending on experience Location: Hybrid working in Central London Office Tech Stack: Ruby on Rails, JavaScript, React, AWS👩🏻‍💻 The Company 🚀 I’m working with a scaling SaaS company that’s transforming the way businesses operate within their respective industry. They have … now tackling problems of scale, performance, and innovation head-on. They take great pride in the company culture they've built with low attrition across the board. Desired Skills ⚙️ Ruby on Rails JavaScript React AWS Please apply now if you'd be interested in finding out more, moving fast with interviews (Senior Ruby Developer). Senior … Ruby Developer - Paying Up to £100,000 - SaaS More ❯

in Computer Science or equivalent work experience 5+ years in web, software, or mobile app development Proficiency in Java and at least one of: JavaScript, .NET, PHP, Node.js, Python, Ruby on Rails Experience with REST and GraphQL APIs and web service consumption Knowledge of QuickBooks is highly desirable Background in small business or consumer finance is a More ❯

Back End Developer (Java/Ruby on Rails/Spring/SQL/Python) My global fintech client is looking for a strong back end developer to join their ever expanding dev team on a permanent basis. Here are the technical requirements for the role: Essential Skills Java, MS SQL, Spring, SpringBoot, Jpa Ruby On Rails and or TypeScript within NodeJS SQL and or MongoDB Strong problems solving skills Debugging code Designing scalable systems Root cause analysis Able to develop effective solutions Strong communication skills Excellent time management Critical thinking Is adaptable Desirable Skills Python not a must but advantage The client offers hybrid working with you required to be on site More ❯

Ruby Developer - FinTech - Up to 55k I’m working exclusively with a scaling fintech client (so you won't hear this via another recruiter) who are expanding their footprint in the market. They’re looking for multiple Mid-Level Ruby Developers to join their small, collaborative team 📊 💸 Salary: £45,000 – £55,000 🏢 Working Arrangements : Hybrid in London … days a week in the office) 💻 Tech Stack: Ruby on Rails, JavaScript, DevOps tooling's, AWS This is a backend focused role although any frontend experience is a bonus. It's a great opportunity to work on exciting projects in an environment which will support you and help you grow as an engineer. You will also … be working very closely with their customers and this is experience that they really value. If this is of interest, please get in touch ASAP - will be moving quickly!! Ruby Developer - FinTech - Up to 55k More ❯

Engineering Manager - Ruby on Rails - hybrid in London - £110k 🎉 This full time long term role has just come on the market and is a fantastic opportunity for a friendly, experienced Engineering Manager or Tech Lead who has line management experience ✨ You will be supporting the team as they embark on building a new booking engine … for their platform and completing the transition away from .NET to Ruby on Rails version 8, which is well underway. Essentials: Hands-on Ruby on Rails experience in your career is essential as you will be mentoring and helping the backend Engineers to continue improving their skills. You'll be hands-off in … role but still close to the code and involved in technical conversations, code reviews, stand-ups, etc. 6 direct reports. 4 in London consisting of 2 back end using Ruby & 2 front end using Next.js. 2 backend devs in South Africa who are maintaining the previous system built in .NET whilst the transition to Ruby on Rails More ❯

Ruby Developer - Up to £75,000 - SaaS Salary: Paying £55,000 - £75,000 depending on experience Location: Hybrid working in Central London Office Tech Stack: Ruby on Rails, JavaScript, React, AWS👩🏻‍💻 The Company 🚀 I’m working with a scaling SaaS company that’s transforming the way businesses operate within their respective industry. They have a … of scale, performance, and innovation head-on. They take great pride in the company culture they've built with low attrition across the board. Backend focused role. Desired Skills ⚙️ Ruby on Rails JavaScript React AWS Please apply now if you'd be interested in finding out more Ruby Developer. Ruby Developer - Paying Up to More ❯

hackajob on-demand focuses on matching talented contractors like you with organisations seeking specific skills for their projects. We use our platform to connect you with exciting contract opportunities and discuss projects on behalf of the companies we partner with. Job Title: Fullstack Engineer Location: Remote – UK (Ideally based in London) Contract Duration: 12 months (with potential … APIs and integrations with 3rd party vendors. Build new AI agent supporting APIs to help support better interviewing and qualification verification of workers. Migrate complex concepts from a monolithic Ruby on Rails app to standard Indeed service-oriented technology stack(s), typically Java Spring-boot OR Python Django . Fearless of technologies, frameworks, and languages. Drive requirements … functionality. Skills/Competencies Demonstrated polyglot ability and an eager willingness to jump into any code base. In particular, familiarity with Python/django, or Java, Spring Boot and Ruby/rails are strongly desired. Any experience in Rust will also be strongly considered. Breaking apart monoliths, utilizing contextually appropriate strategies. Strong communication skills to manage stakeholders and More ❯

Join a fast-growing health tech company using AI to solve high-impact, real-world problems. Building tools that help frontline professionals reduce admin and focus on delivering care, my client are looking for engineers who want their code to make a measurable difference. What You’ll Be Building AI-powered web applications (think speech-to-text, smart summarisation … support continuous deployment and high availability Tech Stack Overview (this isn’t a list of all the things you need, just giving you a good overview of what is on offer) Backend: Ruby on Rails, PostgreSQL, Sidekiq, Redis, AWS Frontend: Turbo/Hotwire, Phlex, AlpineJS, TailwindCSS AI/LLM: OpenAI, Claude, LangChain (or equivalents) Infra: Docker …/libraries Help productionise AI features (prompt tuning, prompt chaining, LLM orchestration, etc.) What We Look For 5+ years in software engineering, ideally across full stack environments Experience working on complex systems with meaningful scale A bias toward action and pragmatism: you ship working software quickly Strong product intuition and comfort collaborating beyond just engineering Interest in AI/ More ❯

care of everyone who works here with everything from coaching to personal budgets and pay highly competitively. You’ll be joining a company that’s having a huge impact on people’s lives with a culture where you can be yourself, have fun and progress rapidly. We’re quickly expanding the breadth of our product offering at Beam with … our product Building internal tools - for our team to help as many people as efficiently as possible. Using the latest generative AI tooling to empower our caseworkers to focus on what matters, helping those in need. Get deep into the power of the LLMs that exist and figure out ideal optimisations across our systems with them Why is this … a high-performance engineering culture We are happy to consider people without explicit management experience Breadth of experience across infrastructure, backend and frontend technology stacks We use the latest Ruby on Rails, Turbo, Phlex, AlpineJS, TailwindCSS, AWS, PostgresSQL to name a few technologies. OpenAI & Claude for LLM interfacing We are not wedded to them and will rapidly More ❯

Ruby Developer - FinTech - Up to 50k I’m working exclusively with a scaling fintech client (so you won't hear this via another recruiter) who are expanding their footprint in the market. They’re looking for multiple Mid-Level Ruby Developers to join their small, collaborative team 📊 💸 Salary: £45,000 – £50,000 🏢 Working Arrangements: Hybrid in London … days a week in the office) 💻 Tech Stack: Ruby on Rails, JavaScript, DevOps tooling's, AWS This is a backend focused role although any frontend experience is a bonus. It's a great opportunity to work on exciting projects in an environment which will support you and help you grow as an engineer. You will also … be working very closely with their customers and this is experience that they really value. If this is of interest, please get in touch ASAP - will be moving quickly!! Ruby Developer - FinTech - Up to 50k More ❯

Full Stack Ruby Tech Lead Location: Central London (2 days a month in-office) Salary: Up to £90,000 About Us: My client works in the healthtech space, dedicated to transforming healthcare through cutting-edge technology. Role Overview: We are seeking a talented and experienced Full Stack Ruby Tech Lead to join their team. In this role, you … will lead the development of our healthtech solutions, working with a modern tech stack that includes Ruby on Rails, AWS, and React/TypeScript. You will play a crucial role in shaping the future of our products and ensuring they meet the highest standards of quality and performance. Key Responsibilities: Lead and mentor a team of developers … fostering a collaborative and innovative environment. Design, develop, and maintain robust and scalable web applications using Ruby on Rails. Utilise AWS for cloud infrastructure and services. Implement front-end features with React and TypeScript. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks More ❯

Multiple Remote Engineering Roles – Ruby on Rails | Hotwire | Turbo | Stimulus A fast-growing AI-driven product company is hiring for several long-term, fully remote engineering positions. These roles are ideal for experienced developers located within one hour of Central European Time (CET ±1). The team is building tools used by millions globally and is looking … for passionate engineers to help scale their platform. Open Positions: Senior Backend Engineer (Ruby on Rails) Senior Full Stack Engineer (Ruby on Rails + Frontend) Mid–Senior Frontend-Focused Engineer (Ruby on Rails) What You’ll Work On: Building and scaling user-facing features and backend systems Creating fast, interactive … interfaces using Hotwire, Turbo, and Stimulus Collaborating with product, design, and engineering teams Contributing to architectural decisions and code quality What You Bring: Solid experience with Ruby on Rails (3+ years for mid-level, 5+ for senior) Proficiency with Hotwire, Turbo, and Stimulus Experience working on large-scale applications Strong communication skills and a proactive mindset More ❯

Junior - Mid-Ruby Developer (Hotwire/Stimulus/Turbo) - up to £60,000 - 3 Roles! 🌟 Fully Remote Ruby on Rails Developer Opportunity 🌟 Are you a Ruby Developer who is interested in using the latest technology with Rails using Hotwire, Stimulus and Turbo? I am currently representing a client who is looking to hire up … to 3 developers across Mid - Senior level! Role: Ruby on Rails Developer Location: Fully Remote Salary: £40-60k What We’re Looking For: 2+ years of Ruby on Rails Expertise: You’ll be working with Rails to build robust, scalable applications. Hotwire, Stimulus, and Turbo Experience: Familiarity with these technologies is essential. More ❯

Mid Level Ruby Developer I am currently working with a profitable bootstrapped tech company based near Luton that’s looking for a Mid Ruby Engineer to join their close-knit, collaborative team. This is a backend focused role who will gain a lot of growth opportunities and responsibilities over time as they move their development in house. 🔧 What … You’ll Be Doing: backend development using Ruby Collaborate closely with a small, passionate team Help transition development from an overseas team to an in-house model Play a key role in shaping the company’s tech direction and culture ✅ What They’re Looking For: 3+ years of software development experience , with Ruby on Rails Strong … backend engineering skills Excellent communication and collaboration abilities Comfortable working 1-2 days a week in the office (near Luton) 💼 What’s on Offer: £45,000–£55,000 salary A pivotal role in a profitable, growing startup A supportive, collaborative team environment The chance to grow with the business and influence its technical future More ❯

utilising LLM's/Gen AI? This could be for you 🙌. Let me start with a snapshot of the role: Role : Senior Software Engineer (AI product) Stack : TypeScript, RoR, GraphQL, PostgreSQL n.b - most of the engineering team didn't know RoR before joining, so no worries if you don't - willingness to learn is key though Location : London, Hybrid … is awesome, but it's time to modernise and stay ahead of the curve, so they're seeking a strong SWE with a passion for AI to help them on this journey. You could be an LLM wizz, you could've scaled AI products, you could've created some personal projects - you just need to be passionate about everything … ways to enhance best practices. Naturally this role will have you speaking with various stakeholders across the company so strong people skills is a huge bonus. I could go on forever about this role but for more information click apply and I'll share the job description with you More ❯

Social network you want to login/join with: Technical Lead (Ruby), London (City of London) Client: Location: London (City of London), United Kingdom Job Category: Other EU work permit required: Yes Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 Job Description: We're looking for a Technical Lead to join a scaling start-up based in West London. … The company has a hugely successful core product, built with Ruby on Rails, that has revolutionised the experiences of disabled passengers on the rail networks of the UK, Japan, and Canada. They are seeking an experienced technical lead to oversee their Ruby team, as well as their TypeScript team, which is building and shipping new … products aligned with their mission for good. Ruby on Rails TDD (this is a non-negotiable and will be heavily probed at interview) #J-18808-Ljbffr More ❯

that has received funding from investors who have backed some of the world's biggest tech companies. They are looking for a Senior/Lead/Staff Engineer with Ruby experience to join their team. They are still a relatively young company but have established great engineering practices and aim to disrupt the Travel industry with its SaaS platform. … Role Details: Position: Senior/Lead/Staff Engineer Location: Central London (3 days a week in the office) Salary: £95-130k (Depends on experience) + Equity + Private Healthcare Start: Immediate start and interview process Requirements: Extensive experience with Ruby Strong background in platform engineering (DevOps, Observability, infrastructure) Familiarity with Rails FE is a nice More ❯