full stack ruby engineer jobs in London

Hey! We're team the company We're building a category-defining product, backed by a $125M Series C and used daily by teams at companies like Cursor, Vanta, and Linear. We started by making meeting notes better. Now we're turning every conversation a company has into context that people and agents can act on. Most of what that means for users hasn't been...

Perci Health is reimagining how cancer care is delivered and experienced. As the UK’s largest virtual cancer clinic, we provide whole-person, end-to-end support - from risk reduction and early detection to rehabilitation and long-term recovery. We exist to close the critical care gap in modern cancer services, combining digital innovation with expert-led...

OverviewAre you a Full-Stack Engineer who thrives on building things from scratch and wants to shape a new platform for agentic AI economics? Want to be engineer #3?About the MissionBuild the go-to intelligence platform for tracking AI agent costs, margins, and predicting future burn. You\'ll architect, own, and deliver real-time data streaming, analytics,...

We're looking for experienced Senior Software Engineers! TL;DR: Our tech stack is Elixir, Elm, and Rust. We are a rapidly growing company (100% YoY since launch). We work remotely and asynchronously in four-week cycles using the Shape Up methodology.About Timeline: We are disrupting the financial planning and portfolio management software for advisers in the...

Select how often (in days) to receive an alert: Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures,...

Client Server Limited is seeking a Senior Full Stack Engineer / Technical Lead to own the technical strategy and architecture for developer ecosystems, focusing on API and SDK design with Ruby, TypeScript and React. You will oversee the full development lifecycle, mentor engineers, review contributions and collaborate with external contributors and the...

Model ML is the AI workflow builder transforming how major financial institutions produce and validate client-ready work. Model ML converts complex, manual processes into fully automated AI systems that scale across global teams. In under a year, Model ML has become one of the fastest growing enterprise AI platforms worldwide and recently closed a $75...

Full Stack Engineer - Frontend focusedLondon N1 – Full Time – Hybrid – Salary Dependent on ExperienceReady to revolutionize global logistics?Join Reelables and help us transform how the world tracks packages. We’re pioneering paper-thin smart shipping labels using Bluetooth and 5G to track millions of packages globally — and we’re building the...

Join a team that is redefining how enterprise infrastructure technology is built, delivered, and scaled. At JPMorganChase, we invest in our engineers - giving you access to cutting-edge tools, meaningful mentorship, and the opportunity to grow your career across one of the world's most complex and innovative technology organizations. Here, your work doesn't...

Requirements Multiple years of industry experience in a full stack web app development role (ideally in SaaS) Great knowledge of TypeScript and an appreciation for the language Appreciation for design and digital product craftsmanship Experience collaborating directly with product teams and designers, and a proven track record of delivering value to...

Job Description BNY is seeking Engineers who amplify team impact through technical leadership and force‑multiplier behaviors. In this role, you will elevate those around you by raising engineering standards, accelerating delivery, applying sound technical judgment to complex problems, providing thought leadership and coaching others. You will use...

We’re looking for a talented, high-quality full-stack engineer to join our team We care about how well you build software, how you work within a team, and how fast you learn. Runna’s stack and problems will keep changing as we grow, so we’re looking for strong engineers who pick up new systems quickly and bring good judgement wherever they land, not a...

About ElevenLabs ElevenLabs is an AI research and product company transforming how we interact with technology. We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the...

Humaans is building the next generation of infrastructure for the workplace; software designed for companies that are scaling fast, operating globally, and pushing into new boundaries.What started as a system of record has evolved into a broader platform for operating people globally. With Athena, our agentic AI layer, Humaans moves beyond data management...

Hive Science is a tech start-up whose technologies are in use by many of the world’s largest brands including Land Rover, Edward Jones & numerous other fortune 500 brands. The Hive platform is delivering novel intelligence at the intersection of quantitative social psychology, behavioral science & AI/ML to accelerate & transform how work is done. We’re...

C# Full Stack Software Engineer – Fintech85,000 Plus 10% BonusRemote Working 2 days per month in the officeQuant Capital is urgently looking for a Junior C# Full Stack Developer to join our high profile client.My Client is a well known global (yet not too corporate) financial software (fintech) business that has developed a unique proprietary front office...

Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of:Creating custom AI applications that will impact millions of citizensGenerating high-quality training data for custom LLMsUpskilling and advisory services to spread the impact of AIAs a...

Company description Join the leader in global work. Vialto helps leading organizations identify, develop, and execute their workforce priorities with confidence. Our practice areas include global tax, immigration, rewards, advisory and Vialto private and our team is the gold standard in navigating the complexities of cross-border compliance, and workforce...

Full Stack Engineer / Developer (C# TypeScript Azure) London / WFH to 120kAre you a technologist with full stack development skills looking for an opportunity to make an impact at a scaling start-up?You could be joining a tech incubator funded by a major investment bank, working on complex cutting edge AI technology.As a Full Stack Engineer you'll join a...

We’re seeking a future team member for the role of Senior Director, Lead Engineer & Architect (Full Stack / Blockchain) to join our team. This role is located in London. In this role, you’ll make an impact in the following ways: Own the end-to-end technical architecture of a new, high-profile platform that combines modern web applications, distributed...