10 of 10 Permanent Ruby on Rails Jobs in London

Senior Software Engineer (Full Stack - Ruby on Rails/React) Remote (UK-based) Up to £85,000 About the Role A fast-growing sports tech company are on a mission to deliver an exceptional product experience to their passionate user base. They're looking for a Senior Full Stack Engineer with strong Ruby on Rails expertise and solid React skills to help shape and scale their platform. This is a remote-first position (UK-based), with the team coming together in Edinburgh just once a quarter. It's a great fit if you value flexibility, ownership, and making a real impact on both product direction and user experience. What You'll … Be Doing Designing and maintaining robust Back End systems with Ruby on Rails Building dynamic, responsive interfaces with React (and occasionally React Native ) Partnering with Product, Design, and Customer Success to deliver features that matter Writing clean, maintainable code and clear documentation Engaging with users to better understand needs and priorities Driving improvements in tools, processes, and More ❯

Why We Exist At Raylo, we're on a mission to accelerate the move to a circular economy. The only way customers and manufacturers will make that shift is if it's simple and cost-effective - this is where we come in. Our technology platform powers the lease-and-reuse of devices, making them more sustainable, accessible, and affordable. … reducing waste - we're shaping the future of technology in a way that's smarter, more sustainable, and built to last. Our Core Values Be deeply curious - We thrive on innovation through diverse approaches, views, and people. Walk in your customer's shoes - To build the best products and make the best decisions for the long term, we must … self-serve functionality for customers. You'll join a culture of high trust and autonomy and no micromanagement, where you'll have the chance to quickly make an impact on our mission. Over the next year, you'll: Develop a deep understanding of our core user journeys and backend systems. Gain autonomy in delivering medium-sized projects and play More ❯

is growing, and we're looking for a Mid-Senior Backend Engineer to help scale our product. You'll tackle challenges across APIs, payments, search, streaming, data, and security. Ruby on Rails is at our core, so experience here matters. This is your chance to make a real impact in a lean, ambitious team operating in the … to explore new ideas and approaches to champion great cinema for millions of film lovers worldwide. Where you'll have impact: Design, develop, and maintain robust backend services using Ruby on Rails and relational databases Build and optimize APIs that power our web, mobile, and TV applications across global markets Implement and improve distributed systems using ElasticSearch … systems like EKS Develop and optimize billing, payment processing, and subscription management systems What you'll bring: Essential Requirements: 2+ years of professional backend development experience Strong proficiency in Ruby on Rails and relational databases Experience with distributed systems and caching strategies (Redis, ElasticSearch) Solid understanding of API design and RESTful principles Experience with background job processing More ❯

Senior Ruby Engineer Scale-Up Tech Company - Remote (Anywhere in the world) Up to £80,000 Are you ready to take your career to the next level? We're working with one of the fastest-growing tech companies in the world, and they're on the lookout for an experienced Senior Ruby Engineer to join their expanding … team. This is a chance to build and scale products used by millions globally, in an environment that thrives on innovation, ownership, and speed. Why this role? Join a high-growth scale-up with 30M+ users and bold ambitions for the future. Be part of a tight-knit engineering team, working directly alongside the CTO and product leads. Contribute … digital experiences. Play a pivotal role in shaping the technical roadmap and experimenting with new ideas. What you'll be doing: Leading back-end development with a strong focus on Ruby on Rails. Collaborating with product managers to refine specs and shape solutions. Preparing integration plans, estimations, and delivering high-quality, production-ready code. Reviewing PRs, ensuring More ❯

scale and evolve MUBI's backend. You'll lead key architectural decisions, mentor the team, and tackle our most complex challenges across APIs, streaming, payments, data, authentication and more! Ruby on Rails expertise is essential, and experience breaking down monoliths into service-oriented architectures is highly valued. This is a chance to shape the future of a … guidance. Shaping technical roadmap in collaboration with engineering leadership What you'll bring: Essential Requirements: 6+ years in backend development, including 2+ in a senior engineering position. Expert-level Ruby on Rails and deep knowledge of its ecosystem. Strong experience with AWS services and cloud infrastructure. Deep understanding of database design and optimization at scale. Track record … being an Equal Opportunity Employer. That means it's our responsibility to ensure that all candidates are not discriminated against in our hiring processes and our employment decisions based on their race, color, religion, nationality or ethnic origin, age, gender identity or expression, sex, marital status, physical or mental disability, socioeconomic background, sexual orientation, family or parental status, or More ❯

/Front-end Engineer, UX Focus Level: Mid-Senior/Senior; Remuneration dependent upon experience Please Note: All applications should include a covering letter; references should also be available on request. Who We Are Ochre is a music retail technology company, helping labels, artists, distributors, and brands to run their ecommerce operations. Growing from our roots in music D2C … about music, technology, art, and culture. Our offices are shared with our sister companies, Warp Records and Bleep, making it a creative, engaging, and dynamic environment. We pride ourselves on having a highly collaborative and energetic working environment. Being part of a cross-disciplinary team, you will be working closely with people across the business to define and realise … be a central part of developing and expanding our platform. Collaborating directly with teammates from across the business, you will jointly devise new capabilities and features with a focus on UX. You will also be responsible for managing and refining our approach to Front-end Development, and will be part of a working group responsible for defining our approach More ❯

a BSc, Masters or any level of education or experience from a particular size of the company. For us, passion for building high-quality products and making an impact on the electric transition is way more valuable and you don't need any of the above to achieve this. Everyone has a Voice We are proud to work in … projects. Our Tech Stack Our stack is listed below, we like to keep it simple and use the right tool for the right time so it will keep changing. Ruby on Rails API PostgreSQL Redis ReactJS (NextJS) AWS/Heroku Vercel/Cloudflare Our Tools Stack We believe in investing in the right tooling to get the … key You like to contribute with your own ideas Ideally based in Barcelona but open to be remote The Process We try to keep our process simple and focused on the work you will get to do here at Papaya. 30 min informal intro chat with the CTO 60 min technical pairing exercise with a real world problem with More ❯

Are you a passionate full-stack engineer who thrives in building end-to-end features that users love? We're partnering with a fast-growing, fully remote tech company on a mission to empower product teams to deliver world-class user experiences - and they're looking for a Senior Full-Stack Product Engineer to join their ambitious team. Why … at the heart of how they work. Be part of a close-knit engineering team (10 engineers in a 50-person company) where your work has a direct impact on tens of thousands of weekly users. Take full ownership of features, from concept to release, and feel the pride when users love what you've built. Shape not just … company's future growth. What you'll be doing: Owning features from start to finish - collaborating with designers and PMs, building, testing, and releasing. Developing across the stack: React on the front end, Rails on the back end, with AWS infrastructure. Ensuring every feature is polished with strong attention to UX and quality. Getting involved beyond traditional More ❯

Develop optimal technical solutions to business challenges, contributing to an architectural vision aimed at scaling to become the world's leading research platform. Ship Working Code: Primarily utilizing React on the frontend and Kotlin microservices with Postgres on the backend, with some legacy services in Ruby on Rails. Deploy and Iterate: Release updates frequently to customers More ❯

Senior Software Engineer UK Remote Bright Purple is working with a growing company in the education space, and we are on a mission to find the newest member of their small but mighty software team. So, if you like to work in a small team where your contribution is visible, read on. Benefits: Fully remote with flexible working. Join … a small, close-knit team where your impact is visible. Lead technical decisions and product development on a modern platform. Shape the future of the product while growing into long-term technical and product leadership. What Youll Do Take full ownership of our platform, turning ideas and customer feedback into polished, user-facing solutions. Oversee deployments, infrastructure, and performance … Translate product and UX ideas into tested, elegant solutions. Ensure operational stability and continuous improvement. Communicate clearly with technical and non-technical stakeholders. Youll Need: Extensive experience working with Ruby on Rails. Full-stack development experience, ideally for a SaaS company. Familiarity with Hotwire (Turbo/Stimulus) and server-rendered architecture. This role is fully remote , but candidates More ❯