26 to 50 of 57 Ruby on Rails Jobs in London

Staff Product Engineer — AI-Driven, Global Scale

Location
Greater London, England, United Kingdom
will drive technical direction, scale systems for a global audience, and push AI-driven iterations that impact 100,000+ users daily. We use Ruby on Rails, Typescript, PostgreSQL on GCP, with React + TS on the client and shadcn design system. Equity and strong benefits ...

Software Engineer - Tech Lead - Enterprise

Location
Greater London, England, United Kingdom
encourage initiative, ownership, and fresh thinking. We back our people with flexible work, wellness and mental health support, and a work environment built on collaboration. We’re currently expanding our engineering teams in London and looking for experienced Tech Leads. This is an individual contributor role with technical leadership …//engineering.monday.com/Please note this is a hybrid role based in our incredible London office in Fitzrovia, with 3 days per week on-site. About the Team Our Enterprise Engineering group sits at the heart of monday.com’s growth, building the foundational systems that our largest customers ...

Staff Product Engineer

Location
Greater London, England, United Kingdom
your work. Over 100,000 frontline workers already use Beam to take notes, provide live interpretation and handle phone calls, so they can focus on the people who need them most. This is just the beginning. The opportunity at Beam We’re looking for exceptional Staff Engineers with … scaled product. What you’ll be doing Driving technical direction across our teams. Building the systems that allow us to scale globally. Continuously innovating on our use of AI internally to drive gains across product and engineering. Releasing your work to 100,000+ users multiple times ...

Senior Software Engineer, Backoffice Platform

Location
Greater London, England, United Kingdom
over 700 billion messages to more than 2 billion devices every month. Teams at HubSpot, Fin, Dialpad, NASCAR, Sportsbet, and General Motors all build on Ably. Working at Ably means helping build the infrastructure that will shape the next generation of the internet. More of what people do online … limits that determine what each of our customers can do, and it runs the tooling our Finance, Customer Success and Support teams rely on every day. This is an opportunity to take ownership of a platform the whole business depends on, with the scope to decide ...

Senior Platform Software Engineer I

Hiring Organisation
Braze
Location
London, UK
Employment Type
Full-time
crew. We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity – inside and outside our organization. To flourish here, you must be prepared … engagement platform, helping brands build personalized messaging experiences across push, email, in-app, and more at massive scale. Our technology stack is rooted in Ruby on Rails, MongoDB, Redis, Kafka, Kubernetes and more. The In-Memory Databases & Observability team provides the foundational infrastructure and tools that keep ...

Head of Developer Experience (DevEx)

Location
Greater London, England, United Kingdom
Location: UK, Netherlands, or Remote (Europe) Tech Stack: Ruby on Rails, Python/React, PostgreSQL, AWS (ECS Fargate), GCP (Cloud Run), GitHub Actions, Terraform Cloud Focus: Internal Developer Platform · AI-Native Engineering Transformation · Engineering Quality & Reliability About Tech at Bloom & Wild Group We're Europe's largest … split your time roughly between: Platform Strategy: owning the DevEx roadmap and our internal developer platform as a product. AI-Native Transformation: leading on our DevEx AI roadmap and driving AI enablement across Product & Technology. Team Leadership: line-managing and growing the DevEx engineering team. Key Responsibilities Paved Road ...

Staff / Senior Staff Security Engineer, Vinted Pay

Location
Greater London, England, United Kingdom
pick‐up and drop‐off points, partnering with more than 60 carriers across Europe, with added services like item verification for peace of mind on high‐value pieces. Vinted Pay is the newest part of the Vinted Group, dedicated to bringing secure, reliable payments to buyers and sellers across … senior team and your security peers in Marketplace, Vinted Go, and Platform. This is a build role with room to grow: you start hands‐on, closing the highest‐impact gaps yourself and setting direction for the security work already under way, and as the function matures you will shape ...

Lead Engineer

Location
Greater London, England, United Kingdom
approach with ambitious growth plans and are looking for like minded driven people who are passionate about making a positive impact and join us on this journey. Role Overview: We're hiring a Lead Platform Engineer: a hands-on senior engineer (roughly 80% building, 20% leading) who owns … Lead the migration between our two live production systems, ensuring integrity and minimal disruption Move analytics infrastructure onto a server-side foundation Contribute hands-on to engineering delivery Lead the in-house team of five and coordinate outsource delivery partners Sit on the senior leadership team, representing engineering ...

Ruby on Rails Developer (with JavaScript experience)

Location
Greater London, England, United Kingdom
Where: London, UK Start Date: ASAP Employment: Permanent Angeloop is an exciting Business Intelligence startup on a mission to change the way early-stage companies interact with investors, helping them connect, complete funding rounds and manage growth. Angeloop is growing and we’re looking for a talented Rails developer to join our amazing team in London. As our lead Rails developer you’ll have to opportunity to inject your knowledge and technical skills into the very core of the product, making a huge difference. We obsess over user experience and product, so you’ll need ...

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 ...

Senior Engineer

Location
Greater London, England, United Kingdom
Goswell Rd., Barbican, London EC1M 7AN About Us Duco is on a mission to reduce the time spent on data-related work by 90%. Our enterprise data automation platform empowers teams to work more efficiently and meaningfully by giving them the ability to automate data controls with …/CD and quality gates that make AI-assisted work reliable for the whole team. Bring ideas, and a healthy scepticism for hype , on where AI adds real value and where it does not. Champion safe, responsible use that respects code quality, security, data handling and our engineering standards. ...

Ruby On Rails Developer

Location
Greater London, England, United Kingdom
increase the size of their development team over the next 12 months. You'll be 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. … company they don’t limit their teams and want their developers to be keen on learning new technologies. Automation is important to make sure there is a CD pipeline set up to build, test, and release. What in it for you? Apart from working at an award-winning health ...

Product Engineer Graduate

Location
Greater London, England, United Kingdom
growing fast. There's never been a better time to join. This is a full-time role starting in June or September 2027 depending on graduation dates. The role in one line Whether you join as an intern or a grad, your first real code here doesn … incident.io, so we care about polish as much as we care about speed. You'll work in Go, TypeScript with React, and Postgres, deployed on Google Cloud using GKE and Cloud SQL. Infrastructure is Terraform, with BigQuery, PubSub and Cloud Storage in the mix. Sentry, Grafana + Prometheus ...

Analyst I, Falcon Complete (Remote, GBR)

Hiring Organisation
CrowdStrike
Location
London, England, United Kingdom
changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they … count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute ...

Lead Ruby on Rails Engineer - London Startup

Location
Greater London, England, United Kingdom
innovative startup in London seeks a talented Rails developer to join their growing team. You'll have the opportunity to deeply influence the product and work on exciting technologies. As a self-motivated team player, you'll need to build high-quality features while contributing to a culture ...

Senior Software Engineer - Data & Architecture (Hybrid London)

Location
Greater London, England, United Kingdom
people management. You will drive infrastructure features from UI to database, shaping the product's future in a hybrid London office with 3 days on-site. Join Enterprise Engineering to work across Data Lifecycle and Account Controls, tackling large-scale challenges with a stack including React.js, Node.js, Ruby on Rails, AWS, and more. #J-18808-Ljbffr ...

Full Stack Developer

Location
Greater London, England, United Kingdom
interfaces using HTML, CSS, and JavaScript frameworks (React, Angular, or Vue.js). Build and maintain back-end services and APIs using Node.js, Python, Ruby on Rails, or similar technologies. Integration and Collaboration: Collaborate with designers, product managers, and other developers to define project requirements and deliverables. Integrate … culture of continuous improvement. Documentation and Reporting: Create and maintain documentation for code, processes, and best practices. Provide regular updates and reports on project status, progress, and challenges. #J-18808-Ljbffr ...

Sr. Analyst, Falcon Complete (Remote, GBR)

Location
London, United Kingdom
changed we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they … count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute ...

Senior Product Engineer

Location
Greater London, England, United Kingdom
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 … building these critical features Who we’re looking for 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 ...

Senior AI-Driven Product Engineer

Location
Greater London, England, United Kingdom
growing team. You will help develop technology that empowers caseworkers and enhances client support. The ideal candidate has experience with modern tech stacks, including Ruby on Rails, and thrives in cross-functional teams. This role offers competitive salaries, significant autonomy, and the chance to contribute to meaningful ...

Senior Ruby Engineer

Location
Greater London, England, United Kingdom
Title: Senior Ruby Engineer Location: London - Hybrid (4 days in the office) Salary: Up to £110k per annum We are partnering with an innovative company based in London seeking a skilled and motivated Senior Ruby Engineer to join their dynamic team. Known for its cutting-edge solutions … collaborative culture, this organisation values technical excellence, leadership, and the professional growth of its employees. As a Senior Ruby Engineer, you will play a crucial role in the team by contributing hands-on to product development while also guiding and mentoring junior developers. This role is ideal ...

Staff Product Engineer, AI

Location
Greater London, England, United Kingdom
part of Salesforce, is on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to sales … impact of each model we deploy. If you are an experienced product engineer who takes an analytical approach to development and has some hands-on experience with ML systems, we'd love to hear from you! What will I be doing? Product Engineers in the AI Group Build ...

Senior Product Engineer

Location
Greater London, England, United Kingdom
brands, track ordering trends, finance equipment, and access insurance. Customers that use Odeko can increase their revenue, reduce their environmental footprint, and save significantly on their cost of goods and time spent on vendor management. Odeko is on a mission to continuously develop technology to champion your … leaders. You’ll build with AI agents as your default tooling. At Odeko, AI-assisted development is a professional standard and engineers are measured on how well they direct, review, and take responsibility for that output. This role assumes you already work this way and what we're hiring ...

Senior Backend Engineer (Remote) – UK

Location
City Of London, England, United Kingdom
architectural vision that will scale up to be the world s leading research platform. Ship 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 … 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 ...

Platform Engineer London, UK · Full time · Hybrid

Location
Greater London, England, United Kingdom
workflows used by more than 100 engineers. The role combines infrastructure and software development, with an approximate 65/35 split. You’ll work on cloud infrastructure, deployment automation, observability, CI/CD, and internal tooling. The goal is to make development and releases more reliable, efficient, and straightforward. …/CD workflows. Find the causes of slow builds, failed pipelines, and flaky tests. Develop internal tools, improve test infrastructure, and occasionally work on product features. Improve observability across our infrastructure and delivery workflows using OpenTelemetry, ELK. Leverage AI to improve engineering workflows by building cloud-based agent tools ...