26 to 50 of 65 Ruby Jobs in Central London

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 experience in mentoring junior developers 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 and fix bugs. Help maintain code quality 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 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 plus This is More ❯

For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building More ❯

For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building More ❯

For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building More ❯

For: Deep experience with TypeScript , React , Python , AWS , PostgreSQL , and an interest in AI (GenAI a plus!) Bonus points for experience with other backend languages like Go , Elixir , Clojure , Ruby , C++ , Haskell , Scala , etc - Even more for code examples! Proven ability to lead projects (and teams) in fast-paced, innovative environments Strong decision-making skills and a passion for building More ❯

DevOps Engineer  Bachelor or master's degree in Computer Science or equivalent  Experience in one or more of the following is preferred: Java, Python, Go, Groovy, Perl or Ruby.  Design, implement, and enhance our deployment automation based on Chef and More ❯

Role: DevOps Engineer Location: London, UK Hybrid Opening (2-3 days onsite) Permanent opening • Bachelor or master's degree in Computer Science or equivalent • Experience in one or more of the following is preferred: Java, Python, Go, Groovy, Perl or More ❯

My client, a prestigious systematic boutique hedge fund, is seeking a junior Software Developer/Computer Science Graduate to join their London team. This is a rare opportunity to join a forward-thinking firm with a start-up mindset, where More ❯

My client, a prestigious systematic boutique hedge fund, is seeking a junior Software Developer/Computer Science Graduate to join their London team. This is a rare opportunity to join a forward-thinking firm with a start-up mindset, where More ❯

My client, a prestigious systematic boutique hedge fund, is seeking a junior Software Developer/Computer Science Graduate to join their London team. This is a rare opportunity to join a forward-thinking firm with a start-up mindset, where More ❯

Mid Ruby Developer in London/Shoreditch I am currently looking for a Mid Developer to join a stable bootstrap, profitable business based in central London. With a competitive salary of up to £65-70k for an office-based position, they have a great team culture due to their tight-knit and dynamic team. This role has a very … good opportunity for growth! What We're Looking For: Ruby expert: Do you have 3-5+ years of hands-on experience with Ruby Frontend: Proficiency in React, and JavaScript (Nice to have, but they are happy to consider backend focused developers.) Great communication skills - able to work closely in a small team and contribute with new ideas They also 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 the 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 is finalised. Hybrid in London, Shoreditch. Ideally 3 days a week in the office More ❯

Senior Product Engineer – HealthTech | London | Up to £110k + Equity Location: Central London (Hybrid, 3 days/week) Salary: £70,000–£110,000 (DOE) + Equity Tech Stack: Ruby, PHP, Python, C#, JavaScript Join a fast-growing HealthTech scaleup that’s already improved the lives of over 1 million patients through innovative fitness, tracking, and subscription-based solutions. Backed by More ❯

end systems development life cycles. Knowledge of computer development software as it relates to systems, such as SQL, Visual Basic, etc. Expertise with any object-oriented programming languages(Kotlin, Ruby etc.) Expertise with Python and Web Applications Education/Experience: Master's degree in computer science preferred. More ❯

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, Terraform, GitHub Actions, CloudWatch What You’ll More ❯

About the Role: In this role, you will play a key part in supporting the client’s High Touch Support operations—designing and maintaining code for both front and back-end programming. The typical full stack developer will be able More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby . This is a high-impact freelance role within … a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale … critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby . This is a high-impact freelance role within … a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale … critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby . This is a high-impact freelance role within … a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale … critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby . This is a high-impact freelance role within … a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale … critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby . This is a high-impact freelance role within … a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale … critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both More ❯

Mid - Senior level Full Stack Ruby developer - React Location: Central London (2 times a month) Salary: £60-80k + Benefits About my client: a profitable SaaS business with a strong foundation and exciting growth prospects. As a long-term client of Opus, they have an low turnover rate within the tech team, with a stable and strong team culture … Role: We are looking for a talented Mid-Level Full Stack Developer with 3-5 years of experience to join their team. You will be working with Ruby and React to develop and enhance our innovative products. Responsibilities: Develop and maintain web applications using Ruby and React. Collaborate with cross-functional teams to define, design, and ship new features. Ensure … the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Requirements: 6+ years of experience in Ruby development. Proficiency in React. Strong understanding of web development principles. Excellent problem-solving skills and attention to detail. Ability to work in Central London twice a month. Benefits: Enhanced pensions Healthcare Volunteering opportunities Mental health support £500 annual training More ❯