226 to 250 of 261 Permanent Ruby Jobs

Backend Engineer (Mid/Senior), Maps Engineering London

Location
Greater London, England, United Kingdom
shipped fast with TDD, DDD, and continuous integration and delivery. We are a Go shop, and while we're busy migrating away from our Ruby monolith, our stack includes PostgreSQL, MongoDB, RabbitMQ, Redis, gRPC, and Thrift. Everything runs on AWS and Kubernetes, managed via Terraform. Our interview process includes … maintaining scalable backend services. We use Go. If you know it, great. If not, we'll interview you in your strongest language (Python, C++, Ruby, etc.). We hire for engineering fundamentals, not syntax. In-depth knowledge of relational and NoSQL databases (PostgreSQL, MongoDB, Redis) and experience with message brokers ...

Senior Platform Software Engineer I

Hiring Organisation
Braze
Location
Greater London, United Kingdom
Employment Type
Full Time
This job is with Braze, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. At Braze, we have found our ...

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 ...

Ruby Backend Engineer - Flexible Working

Location
Greater London, England, United Kingdom
Solirius Reply, part of the Reply Group, is seeking an experienced Ruby Backend Developer to build scalable, secure backend systems. You will work in an agile team, delivering high-performance services and RESTful APIs. Responsibilities include designing APIs, collaborating across engineering, QA, and DevOps, and ensuring robust, testable code with ...

QA Engineer: Agile Testing & Automation (Ruby/Selenium)

Location
Slough, England, United Kingdom
learn test automation using Agile and BDD practices. Candidates should have experience with User Stories and SQL querying. Familiarity with modern tech such as Ruby and Linux is beneficial. This position offers a great opportunity to develop your skills in a supportive environment. #J-18808-Ljbffr ...

Ruby on Rails Developer with React - Remote & Flexible

Location
Greater London, England, United Kingdom
expanding its development team to meet growing demand in health tech. You will join a fast-moving environment building, scaling and maintaining code in Ruby, with opportunities to work on React interfaces and to improve automation across the CD pipeline. You’ll collaborate closely with product teams, embrace learning ...

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. You will participate ...

Ruby on Rails Engineer - Build Impactful Childcare Platform

Location
Greater London, England, United Kingdom
solve complex matching problems, giving families and nannies a solution that just works and speeding up nanny recruitment and training processes. The stack includes Ruby on Rails for the backend, PostgreSQL and Redis, with ES6 frontend tooling and Tachyons. #J-18808-Ljbffr ...

Ruby On Rails Developer

Location
Greater London, England, United Kingdom
creating, scaling and maintaining code with a focus on best practices, working closely with the product teams. You will be working with Ruby and have the ability to get stuck into React. As a company they don’t limit their teams and want their developers to be keen on learning ...

Senior Backend Engineers (Polyglot) United Kingdom (Remote)

Location
United Kingdom
features and the occasional roast Meet The Team Here at Cleo, we have ~200 Engineers organised into Pillars Our stack spans a 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 … users' financial health. We care far more about how you think than which language you've used before. Much of our product runs on Ruby today, but we deliberately hire polyglot engineers: if you've shipped meaningful product work in any modern stack, you'll ramp quickly here. Key responsibilities ...

Senior Backend Engineers (Polyglot)

Location
Greater London, England, United Kingdom
features and the occasional roast Meet The Team Here at Cleo, we have ~200 Engineers organised into Pillars Our stack spans a 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 … users' financial health. We care far more about how you think than which language you've used before. Much of our product runs on Ruby today, but we deliberately hire polyglot engineers: if you've shipped meaningful product work in any modern stack, you'll ramp quickly here. Key responsibilities ...

Backend Engineer, Source Code: Repository Services (Ruby)

Location
United Kingdom
Backend Engineer, Source Code: Repository Services (Ruby) Remote, United Kingdom GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune … intelligence agents now writing and pushing code alongside people. You’ll work in one of GitLab's oldest and most complex product areas, using Ruby and GraphQL across GitLab.com , self-managed instances, and GitLab Dedicated. Repository Services is a new team, and its first months are about reliability and support ...

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

Location
United Kingdom
features and the occasional roast Meet The Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans a 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 … actionable feedback, and support engineers through development, performance conversations and growth planning. Stay close to the code and contribute hands‐on to our Ruby on Rails monolith, using practices such as automated testing, observability, A/B testing and feature flags. Collaborate across Engineering, Product, Design and Data to deliver ...

Backend Engineer, Source Code: Repository Services (Ruby)

Location
United Kingdom
# Backend Engineer, Source Code: Repository Services (Ruby)GitLab115k–194k USDFull-timeremote· midUKrubygraphqlListed via Jobicy · posted 30 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 and compliance … artificial intelligence agents now writing and pushing code alongside people.You'll work in one of GitLab's oldest and most complex product areas, using Ruby and GraphQL across GitLab.com, self-managed instances, and GitLab Dedicated. Repository Services is a new team, and its first months are about reliability and support ...

Software Engineer ParcVu powered by Booking Experts · Chester ·

Location
Chester, England, United Kingdom
everything we do. About the Role You will join a product-oriented engineering team where we value results over process. Working full-stack with Ruby on Rails , you’ll build new features that have a direct impact on thousands of users. You will collaborate closely with Product Managers and fellow … 3+ years’ hands-on experience building, scaling, and maintaining live production SaaS systems Strong proficiency with modern web frameworks, with a solid focus on Ruby on Rails (or a similar MVC framework) A strong commitment to code quality, maintainability, and performance Excellent communication skills, with the ability to articulate ...

Software Engineer II (Backend) - Home Page & Merchandising Platform

Location
Greater London, England, United Kingdom
what your day-to-day might look like: Design and scale backend services for our real-time marketplace using languages such as Go, Ruby, or Python. Improve code structure and architecture by participating in deep technical discussions and reviewing code across your team’s remit. Enhance system reliability by focusing … readable, well-designed, and well-tested software, with a focus on long-term maintainability. Experience writing web-based applications in any modern language (Go, Ruby/Rails, Python, Scala, or Rust). Solid understanding of relational databases (such as PostgreSQL or MySQL). Familiarity with web architecture at scale, ideally ...

Staff Backend Engineer, Developer Experience

Location
United Kingdom
identify and remove the biggest points of friction that affect development at GitLab. Expect to split your time between hands-on coding in Ruby and Go, designing scalable solutions and helping every team deliver. You’ll be instrumental in shaping our engineering culture across GitLab.This is a highly visible role … scale.- Strong hands-on Go experience designing, implementing, testing, and operating production-quality services, command-line tools, automation, or platform tooling. Experience contributing to Ruby-based systems is also valuable for this role.- Practical Kubernetes experience building or operating production workloads and platform capabilities, including deployments, services, networking, configuration ...

Senior Elixir Engineer

Location
Greater London, England, United Kingdom
pair programming, plan weekly, and keep a close eye on how the product behaves through observability and data. A small amount of legacy Ruby is on its way to Elixir. What you'll own You'll own the delivery of features within your squad end to end, shipping well-tested … evaluate what they produce and steer away from suboptimal solutions rather than taking the output on faith. Bonus points A background in Ruby or another functional language. Depth in RabbitMQ, PostgreSQL or Redis. Exposure to Kubernetes, Terraform or Google Cloud. Experience mentoring engineers. Not sure you tick every box? Please ...

Senior Ruby Architect for Scalable E-commerce Backend

Location
Greater London, England, United Kingdom
systems for our e-commerce platform. The ideal candidate will have over 8 years of experience in backend development, with a strong focus on Ruby and cloud infrastructure. This role involves mentoring junior engineers and collaborating with cross-functional teams to elevate user experience and drive technical excellence. Join ...

Product Engineer - Platform Experience

Location
Greater London, England, United Kingdom
automate user provisioning, and passkey (FIDO2) support. You will work alongside a highly experienced engineer who knows this area deeply. Our stack spans Ruby, TypeScript (React), Python and Java, and we are a Claude Code shop, with access from your first day. Main Responsibilities Design, build and ship … push back where needed Build to the security and data protection standards that regulated financial services clients expect Work across our stack, including Ruby, TypeScript (React), Python and Java Share knowledge with colleagues and build depth in a critical part of the platform Use AI tools such as Claude Code ...

DevOps

Hiring Organisation
Compunnel Inc
Location
Philadelphia, Pennsylvania, United States
Employment Type
Any
Salary
USD Annual
3+ year of Coding in Python or Ruby 2+ year Experience/Exposure in AWS technology 3+ years experience in business process and/or technology implementation Configuration management tools for automation using tools like Chef, Puppet, and/or Ansible Proven experience on scaling cloud-based application with main … drive continuous integration, continuous delivery, release automation Firm understanding of online applications and performance monitors such as Dynatrace, Splunk, Rigor, and Quantum Python or Ruby Coding: 3 years (Preferred) AWS Technology: 2 years (Preferred) Business Process/Technology Implementation: 3 years (Preferred) IT Systems: 4 years (Preferred ...

DevOps Engineer

Location
United Kingdom
updates, identifying production issues and implementing integrations that meet customer needs. If you have a solid background in software engineering and are familiar with Ruby or Python, we'd like to meet you.Ultimately, you will execute and automate operational processes fast, accurately and securely. Responsibilities Implement integrations requested by customers … automate visualization Design procedures for system troubleshooting and maintenance Requirements Work experience as a DevOps Engineer or similar software engineering role Good knowledge of Ruby or Python Working knowledge of databases and SQL Problem-solving attitude Team spirit BSc in Computer Science, Engineering or relevant field #J-18808-Ljbffr ...

Staff Engineer

Location
Greater London, England, United Kingdom
features and the occasional roast Meet the Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans a 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 … product work that improves users' financial health Building shared systems, patterns, and tooling that raise the bar across engineering Staying hands-on in our Ruby on Rails monolith - designing APIs, data models, and scalable services Anticipating risks and opportunities early, influencing plans and technical strategy Mentoring engineers and TLs, growing ...

Staff Engineer United Kingdom (Hybrid)

Location
United Kingdom
features and the occasional roast. Meet the Team Here at Cleo, we have ~200 Engineers organised into Pillars. Our stack spans a 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 … product work that improves users’ financial health Building shared systems, patterns, and tooling that raise the bar across engineering Staying hands‐on in our Ruby on Rails monolith -- designing APIs, data models, and scalable services Anticipating risks and opportunities early, influencing plans and technical strategy Mentoring engineers and TLs, growing ...

Senior Software Engineer (Integrations)

Location
Ruddington, England, United Kingdom
your career, your team, and your impact. This is an opportunity to take ownership of complex integration challenges and deepen your expertise in Ruby, APIs and integration architecture. You’ll influence technical decisions, improve engineering standards and help evolve the way we design, build and maintain integrations across our products. … integrations that enable MHR products to communicate securely and reliably with external systems. You’ll be responsible for: Designing, developing and maintaining integrations using Ruby Building and consuming REST APIs using JSON and XML Implementing secure API authentication, including OAuth and Basic Authentication Working with Swagger/OpenAPI specifications ...