full stack ruby engineer jobs in London

Our mission Great science regularly stalls in the clinic, not because the science is wrong, but because the company behind it lacks the capital, infrastructure, or focus to take it all the way through. Today’s clinical-stage biopharma model is broken, and as a result promising treatments never reach patients. Our mission is to fix this: we’re building...

About Junior Junior is building the AI operating system for investment research. Our software helps private equity firms, consultants and financial institutions complete high-stakes research workflows dramatically faster - from diligence and memo writing to market mapping, research synthesis and strategic analysis. We’re trusted by several of the world’s...

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to...

Job Overview Role: AI Full Stack Engineer (AI & ML Engineer) Location: Fenchurch Street, London Duration: Oct 12, 2026 - Dec 15, 2026 (9 Weeks, 2 Days) Hours: 40 hours/week Rate: 291 PAYE / 388 Umbrella Core Technical Stack Programming & APIs: Python, RESTful API development, JSON Schema, Pydantic. AI & LLMs: Gemini, OpenAI, Claude. Frameworks &...

A global technology organisation is looking for a Full Stack Software Engineer to develop and enhance a range of data-driven applications, cloud platforms and intelligent software tools. This is a hands-on, full-stack engineering role combining backend development, cloud infrastructure, web technologies and emerging AI capabilities. You’ll help build...

London (GB) / Remote (GB) / Brighton (GB)Octopus Electric Vehicles ð – Product & Technology /Full-time /HybridWhat we do. Electric Car Leasing Why we do it. Greener. Fairer. Future.We’re looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to...

Group OverviewThe TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.Through our people and technology, we connect clients to superior liquidity...

Why Ryan?Competitive Compensation and BenefitsBusiness Connectivity Reimbursement (Phone/Internet)Gym Membership or Equipment ReimbursementLinkedIn Learning SubscriptionFlexible Work EnvironmentTuition Reimbursement After One Year of ServiceAccelerated Career PathAward-Winning Culture & Community OutreachThe Full Stack AI Engineer is an early-career software...

THE GLOBAL LEADER IN DATA & ANALYTICS RECRUITMENTHarnham Search and SelectionCompany Number: Harnham Search and Selection is a registered company in England and Wales. Reg no. Harnham Europe LimitedCompany Number: Harnham GmbHHRB: Harnham B.V.KvK Number: Harnham Inc.Company FEIN: Registered office: 3rd Floor, Melbury House, 51 Wimbledon Hill Road,...

Ebury helps ambitious businesses unlock global growth, and we take the same approach with our people. We encourage innovation and movement, collaboration and problem-solving, and foster an environment where everyone can feel they belong, are valued, supported and empowered to succeed.If you’re a collaborator who wants to help transform how businesses...

THE GLOBAL LEADER IN DATA & ANALYTICS RECRUITMENTHarnham Search and SelectionCompany Number: Harnham Search and Selection is a registered company in England and Wales. Reg no. Harnham Europe LimitedCompany Number: Harnham GmbHHRB: Harnham B.V.KvK Number: Harnham Inc.Company FEIN: Registered office: 3rd Floor, Melbury House, 51 Wimbledon Hill Road,...

We're looking for a Lead Full Stack Engineer to join us in LondonYou will join Liberty Global's AI Platform team in London, working directly with the VP Software Engineering to build and evolve the next generation platforms that power AI driven experiences across our business.This is a hands on technical leadership role for someone who enjoys solving complex...

Fireblocks is the company bringing global finance onchain. Backed by over $1 billion in capital, we are the premier digital asset infrastructure provider trusted by thousands of industry-defining financial institutions, including banks, payment providers, fintechs, and global corporates such as BNY Mellon, BNP Paribas, ANZ Bank, Western Union, Stripe, and...

Practice Group / Department:Legal Innovation, Design & Technology - LondonJob DescriptionNorton Rose Fulbright is a global law firm with more than 3,000 lawyers advising clients across locations in the United States, Europe, Canada, Latin America, Asia, Australia, Africa and the Middle East. We provide a full scope of legal services to the world’s...

Senior Full Stack Engineer (GCP) – AI-Powered Market Intelligence PlatformAre you a Full Stack Engineer who thrives on building scalable, data-driven platforms that solve real-world problems?Our client is transforming a global supply chain through AI and real-time market intelligence. Operating at the intersection of data, cloud engineering and...

Lead Full Stack EngineerConsortia are partnering with a high growth climate tech scale up that is digitising and modernising the energy ecosystem.They are hiring a Lead Full Stack Engineer who is as comfortable writing production grade code as they are line managing and developing engineers. If you are looking for a role where you can both build and lead,...

The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.Through our people and technology, we connect clients to superior liquidity and data...

LondonTech – Bloom & Wild /Full-time /Hybridð Location: UK or Netherlandsð ️ Tech stack: Ruby, Angular, TypeScript, SASS, design system, Contentful, GitHub Actionsð Focus: hands-on full stack product work, with room to grow into frontendAbout Tech at Bloom & Wild Group ðWe're Europe's largest direct-to-consumer flower and gifting business (Bloom &...

Why Faculty? We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here.We don’t chase hype cycles. We innovate, build and deploy responsible AI...

About LendableLendable is on a mission to build the world's best technology to help people get credit and save money.We're building one of the world’s leading fintech companies and are off to a strong start:One of the UK’s most exciting unicorns with a team of over 800 peopleAmong the fastest-growing tech companies in the UKProfitable since 2017Backed by...