101 to 125 of 153 Ruby Jobs in London

Staff Engineer Engineering London

Location
Greater London, England, United Kingdom
creates the foundation that allows our entire engineering organisation to move fast. This means building shared tooling, managing migrations (including our move from a Ruby monolith), and evolving our infrastructure. This is a senior leadership role for a deeply technical leader who combines strong backend and infrastructure expertise with ...

Data Engineer

Location
Greater London, England, United Kingdom
healthcare datasets and standards (OMOP is a plus). Experience building production data pipelines with strong SQL and Python (bonus points for AWS and Ruby). Comfortable working directly with clinics and external stakeholders. Transparent and honest communication. A collaborative, respectful, and positive presence on the team. ...

Enterprise Network Support Specialist, eero

Location
Greater London, England, United Kingdom
Qualifications Speak, write, and read fluently in French, Spanish, German or Italian Experience with programming/scripting (Batch, VB, PowerShell, Java, C#, Chef, Perl, Ruby and/or PHP), or experience with automation and any version control tools and experience that includes strong analytical skills, attention to detail, and effective ...

Team Lead (Engineering) - London

Location
Greater London, England, United Kingdom
Onboarding and team health: Help new joiners get up to speed quickly, and keep a team where problems surface early. Our stack: services in Ruby, Elixir and TypeScript, React and TypeScript on the web, and native mobile apps in Swift on iOS and Kotlin on Android. What We’re Looking ...

Senior Applied AI Engineer, Product (London)

Location
Greater London, England, United Kingdom
ElevenLabs for speech, and connect to the rest of Fresha's platform through MCP and our own service APIs. Fresha's wider platform is Ruby, Elixir and TypeScript, so you’ll read a lot of code you didn’t write. What We're Looking For Experience: 5+ years building ...

Senior Backend Engineer for AI Financial Health

Location
Greater London, England, United Kingdom
financial health. We look for strong fundamentals and the ability to reason, learn quickly, and trade off scenarios. While much of our product uses Ruby today, we welcome engineers who have shipped in any modern stack and can ramp up quickly here. #J-18808-Ljbffr ...

Go Backend Engineer - 4-Day Week, West London Office

Location
Greater London, England, United Kingdom
join a Go-focused team in West London. You will build scalable backend services, write tests with TDD, and help migrate away from legacy Ruby monolith toward a modern AWS/Kubernetes stack. The role offers four days in the office plus one remote day, salary from £90,000, stock ...

Data Engineer London

Location
Greater London, England, United Kingdom
Find and fix data quality issues before customers do Who you are Experience with data pipelines and SQL Comfortable with Python or Ruby and with cloud infrastructure A careful, measurement-minded way of working Very good German or English Location London. We work remotely across our locations and meet ...

Mobile Specialist

Location
Greater London, England, United Kingdom
based in London, UK.We craft creative design concepts, affiliate marketing and conversion optimisation.Red Interactive supports many of the online casino games including Spin Casino, Ruby Fortune, Lucky Nugget and many more.Who we're looking forWe’re on a thrilling journey of growth and innovation, and we need passionate, driven individuals ...

Platform Engineer

Location
Greater London, England, United Kingdom
strong bias toward software engineering best practices. If you’ve worked with containerisation (Kubernetes), cloud platforms (any flavour), and tools like Go, Ruby, Terraform, OpenTofu, Terragrunt or Pulumi, we want to hear from you. This isn’t just about building new things. You’ll be enhancing and maturing … tools related to data pipelines, ETL processes. Confident with cloud‐native technologies like Kubernetes, Docker. Experience deploying open‐source technologies such as Python, Node.JS, Ruby, Postgres and related CI/CD pipelines. Good understanding of cloud security best practices and security compliance. Experience designing, supporting and troubleshooting production systems ...

Senior Ruby Developer | Remote • Health Tech Impact

Location
Greater London, England, United Kingdom
Insight Recruitment Group is seeking a Senior Ruby Developer to take ownership of architecture and contribute to the product's future. You will join a team of eight developers who value testing and code quality. The role offers opportunities to improve DevOps, backend, and build services, with flexibility for some ...

Staff Platform Engineer — Backend & Infra Architect

Location
Greater London, England, United Kingdom
seeking a Staff Engineer to lead the Platform team, building the foundation for fast, reliable back-end systems and guiding migrations from a Ruby monolith. You will champion scalable infrastructure and high engineering standards across the org. You will collaborate with product, data, and infrastructure leaders to ensure low latency ...

Mobile Specialist

Location
Camden Town, England, United Kingdom
London, UK. We craft creative design concepts, affiliate marketing and conversion optimisation. Red Interactive supports many of the online casino games including Spin Casino, Ruby Fortune, Lucky Nugget and many more. Who we're looking for We’re on a thrilling journey of growth and innovation, and we need passionate ...

IT Implementation Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
London, England, United Kingdom
days annual leave plus bank holidays.Company pension and life assurance.Employee discounts and Cycle to Work scheme.Employee Assistance Programme and wellbeing support.Apply now or contact Ruby Calver at Spectrum IT Recruitment to find out more.Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. ...

Technical Support Engineer

Location
Greater London, England, United Kingdom
/REST client Qualifications Bachelor's degree preferably in Computer Science, Information Systems or Life Sciences, or equivalent engineering experience Basic experience with Ruby and HTML code Experience with API/web services. Base pay is one part of the Total Rewards that Medidata provides to compensate and recognize employees ...

Platform Engineer @ Hnry

Location
Greater London, England, United Kingdom
system reliability, performance and scalability Actively monitor systems, identify problems and propose solutions Bonus points for the following: Experience optimising PostgreSQL databases Experience with Ruby on Rails or supporting Rails-based applications Experience working on systems at scale Experience in a startup, scale-up, or high-growth environment Experience being … 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, hosted on AWS services (via Terraform), Postgres, Docker We have wide automated test coverage, continuous deployment via CircleCI, and our Engineering team release ...

Backend Engineers (Ruby)

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 … engineers, designers, analysts, and other disciplines to build features that improve our users' financial health. Key responsibilities for this role include: Work on our Ruby on Rails monolith, building data models, APIs, and business logic services Collaborate with peers across your squad and pillar, providing technical insight into upcoming work ...

Ruby Developer

Location
Greater London, England, United Kingdom
nannies a solution that just works, and to supercharge our nanny recruitment and training processes. Tech and Tooling You’ll be working in Ruby for most of the backend, with Rails, PostgreSQL and Redis making up most our core product. You’ll be using modern frontend tooling, with … degree of chaos You own it. You take responsibility for your work from start to finish Not essential, but nice to have: Experience with Ruby on Rails A degree in Computer Science or a related field We work from an amazing private office space in central London. The office ...

Senior Back-End Engineer Location: London

Location
Greater London, England, United Kingdom
best. We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang. While Python is our primary programming language, prior experience with it is not mandatory. What ...

Senior Ruby Engineer

Location
Greater London, England, United Kingdom
culture of technical excellence and collaboration. Who You Are 8+ years of experience building and scaling backend systems in production environments. 4+ years leading Ruby cloud stack teams as a Principal Engineer/Architect. You are very familiar with the Ruby object model - eigenclasses, method dispatch, method_missing, send … variable types. Expert skills with Ruby idiomatic patterns, terse styling, metaprogramming and be able to create macros, DSLs, etc. Have experience contributing to wildly used gems or developed internal DSLs for domain specific needs. Ruby without Rails - you are able to develop complex applications and deploy Rails features vs custom ...

Ruby Developer

Location
Greater London, England, United Kingdom
want to work on project’s doing huge social good? Our customer is currently looking for a Senior Ruby Developer who is ready to take on ownership and contribute to the technical architecture and future of the product. You’ll be joining a team of 8 developers who care about … DevOps processes and backend improvements. Other days you could be building new services with CSS & JS. It’s a great role for a senior Ruby Developer who likes variation in their work, That being said if you prefer to just focus on the backend that’s fine as well.. ...

Developer (Ruby on Rails)

Hiring Organisation
Summer Browning Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
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 ...

Full Stack Ruby Engineer

Location
Greater London, England, United Kingdom
Full Stack Ruby Engineer Location: London (Paddington) · Hybrid (3 days in-office) · Full-time About wawa fertility 17% of adults worldwide need help to have a baby and by 2050, that number will reach nearly 50%. Yet only 2% can access fertility treatment today. That … countries. What You Bring A deep appreciation of The Rails Way, with the chops to build elegant, scalable solutions. Experience shipping production features in Ruby on Rails (bonus points for Hotwire/Turbo/Stimulus). Transparent and intellectually honest communication you say what you mean and mean what ...

Senior Backend Engineer (Remote) – UK

Location
City Of London, England, United Kingdom
working code: We primarily work with React on the frontend and Kotlin microservices with Postgres on the backend, with some older services written in Ruby on Rails. We’ve always got an eye open to assess new technologies that might improve our stack. Deploy and iterate: We release frequently … looking for people who have incredible potential. Technical expertise with at least one programming language (we use Python, Kotlin and a bit of Ruby), and ideally experience with relational databases. Proven track record – You’ve made a demonstrable impact in your previous roles, standing out from your peers. Highly driven ...