126 to 150 of 153 Ruby Jobs in London

Zealand Bonus points Experience building large scale systems Experience being self-employed (freelancing, contracting etc) in any industry/profession Experience using Ruby on Rails How we work We follow agile practices, delivering improvements iteratively in small chunks. We track the impact of our work and measure ourselves on results … robust platform. In some areas of the work (e.g. payment processing) there is very little margin for error. Our technology platform is built in Ruby on Rails, and we also use a bunch of AWS services (via Terraform), Postgres, Docker, and a little bit of React. We have automated tests ...

cloud-based agent tools and helping teams adopt effective practices. Our tech stack AWS, Terraform, Terragrunt, Ansible, Jenkins, Docker, ELK, ClickHouse, MongoDB, PostgreSQL, and Ruby-on-Rails. What we’re looking for Experience developing and maintaining complex CI/CD workflows. Software development experience, such as building internal tools, APIs … another cloud provider. Telemetry and monitoring experience (OpenTelemetry, Grafana, Kibana). Strong Computer Science and System Design fundamentals. Willingness to learn and use Ruby and/or Go. What we’d be particularly excited about Experience optimizing CI build times, especially with Jenkins. Experience with Docker or Kubernetes. Experience with ...

year experience managing technology teamsHands on but with a leadership flareOS: Red Hat Linux, bare metal and virtual machinesProvisioning: Puppet, Kickstart, RPMLanguages: Bash, Ruby, Python, Java, ClojureSecurity: Kerberos, SELinux, LDAPYou will be joining a progressive and exciting company committed to excellence. They offer an excellent working environment with ongoing training … about. My client is based in LondonFollow me on Twitter for more roles and news @SebFintechSytems ENgineer – Security, Hadoop, SPark, debian, SELinux, Debian, puppet, ruby , python, kerberos ...

autonomy in how you get there. We value results over process. Work across the full stack: React Native/Web front ends, Ruby/Rails and TypeScript services, AWS infrastructure, and the data underneath — moving to wherever the problem lives. Spend real time with stakeholders: sit with operations, join customer … scalable, mission-critical production applications. Experience building LLM-powered product features: retrieval, tool use, agent workflows, evaluation and observability of model output. Familiarity with Ruby/Rails, React, Federated GraphQL, Kafka, Kubernetes, Docker, microservices, and NetSuite. Experience in logistics, supply chain, marketplace, or other operations-heavy products. Design sensibility: comfortable ...

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 and help modernise services while ensuring ...

currently supporting our Central Government client who are seeking a Ruby on Rails Developer on an initial contract end March 2027 Location: London, Bristol OR Manchester (Mainly remote based) Experience in back-end development, with knowledge of Ruby on Rails programming language used for back-end web development An awareness ...

frontend is React and TypeScript on a custom design system, talking to the backend through a federated GraphQL layer. Services are written in Ruby, Elixir and TypeScript, with Kafka for events, gRPC or JSON for synchronous calls, Postgres, and everything running in Kubernetes. Domain-driven design is at the heart … work: we build fast, but we think about the bounded context first. We’re partway through breaking our Ruby/Elixir monoliths into services. Our mobile apps are native, Swift on iOS and Kotlin on Android, and the APIs you write serve them too. You don’t need Swift ...

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 ...

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 ...

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 ...

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 ...

We have an exciting opportunity for a Site Reliability Engineer role in a Singapore‐based financial services company. The company is a fast‐growing global trading platform looking for a Site Reliability Engineer to bridge ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

wawa fertility in London is seeking a Full Stack Ruby Engineer to join our hybrid team. You’ll build end-to-end features across the stack, collaborating with clinicians and designers to deliver fast, intuitive interfaces that scale across 14+ countries. You’ll own your domain, ship high-quality code ...

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 ...

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 ...

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. Whilst we aren't fully remote … 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 ...

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 ...

build: Our architecture and our engineering practices aren’t fixed. We expect senior engineers to push on both. Our backend stack services written in Ruby, Elixir and TypeScript behind a federated GraphQL layer. Kafka for events, gRPC or JSON for synchronous calls, Postgres, and everything running in Kubernetes. Domain-driven … heart of how we work: we build fast, but we think about the bounded context first. We’re partway through breaking our Ruby/Elixir monoliths into services. The rest of the platform our web frontend is React and TypeScript on a custom design system, talking to the services through ...