full stack ruby engineer jobs in London

Full Stack Engineer (DevOps Focus) — AI Applications Remote We're a fast-moving, early-stage company building and scaling AI applications and we're not looking for someone who just takes tickets and executes. We're looking for a 10x engineer: someone who takes ownership, brings ideas to the table, pushes back when something doesn't make sense, and...

Back End Engineer (GoLang) Location: Hybrid, Central London (1 day in the office every 2 weeks) Salary: Circa £75,000 + Benefits   An established digital technology business is seeking a talented Back End Engineer to join its growing engineering team. The successful candidate will play a key role in designing, building and maintaining scalable backend...

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...

At Open, we exist because we believe that insurance does not have to be seen as complicated or costly. We’re an AI-powered platform transforming insurance globally — making it more transparent, cost-effective, and customer friendly. Since launching in 2016, we’ve grown into a certified B Corporation, operating across ANZ and the UK, and building...

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...

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...

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...

Thought Machine is seeking a Software Engineer to design and implement end-to-end features across the stack, delivering secure, scalable solutions with a strong focus on user experience.You will own components from backend services to frontend interfaces, collaborate with cross-functional teams, and translate customer requirements into deliverables....

Harnham is seeking a capable Full Stack AI Engineer to design and build production-ready AI applications using Python and TypeScript. The role spans frontend interfaces, backend services, APIs, and scalable architectures, with a focus on deploying LLM-powered solutions in secure environments.You will work with Docker and cloud platforms like Azure or GCP,...

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...

Who We AreBoston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities. BCG was the pioneer in business strategy when it was founded in 1963. Today, we help clients with total transformation-inspiring complex change, enabling organizations to grow, building...

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,...

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...

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,...

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...