typescript fullstack engineer jobs in London

##### Tech Hybrid Farringdon, London Hello. We’re the company, one of Europe’s fastest growing businesses. We make housework work. What we do We find customers brilliant local cleaners. We make the whole process seamless - from click to clean to cashless payment. And we make it easier for cleaners to find work and make money. It’s smart, it’s...

Harnham in London is seeking a senior individual contributor to lead the engineering of a greenfield AI platform for financial services. You will own full-stack development, guide architecture, and shape engineering culture from the ground up.You’ll work across TypeScript, React, Node.js, PostgreSQL and AWS to ship customer-facing features, scale...

Reqiva in London is hiring a Staff Software Engineer – AI to shape product and technical direction. The role is hands-on and requires building production AI systems across Python, TypeScript, and cloud infrastructure.The ideal candidate has 8+ years of software engineering experience, strong Python/backend skills, and a track record in AI/ML or LLM-based...

loveholidays is seeking Senior Software Engineers to help scale our cloud-based services and advance our high-performance search, pricing and booking platforms. You will own end-to-end features, collaborate with design, product, and engineering teams, and help shape architectures for scalable, reliable systems.You should be proficient in modern languages...

Department: ITV Studios | Global Partnerships (Zoo 55 Tech Squad) Contract Type: 12-Month Fixed-Term Contract (FTC) Location: White City, London | Hybrid - 3 days on site Hiring Range: £50,000 – £60,000 About Zoo 55 Zoo 55 is an ITV Studios company established to drive global audience expansion and commercial growth across the digital media ecosystem....

Backend Software Engineer / Developer (Python LLM) Remote UK to £90kAre you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack?You could be joining a scaling AI software solutions provider in a senior, hands-on role.As a Backend Software Engineer you will build production...

Python Software Engineer / Developer (Conversational AI) Remote UK to £90kAre you a backend focussed Python Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack?You could be joining a scaling AI software solutions provider in a senior, hands-on role.As a Python Software Engineer you will build...

**Junior / Graduate Software Engineer (Mobile / React Native)** **Salary:** £40,000 – £50,000 per annum **Location:** Hybrid (1–2 days/week in Central London office) **Education:** STEM degree educated (Computer Science, Math, Physics, Engineering) **About the Opportunity** Are you an exceptionally smart STEM or Computer Science graduate looking...

We’re looking for an engineer who loves building products in a fast-paced, iterative environment.In this role, you will come up with new ways to unlock value for our users using LLMs and enhance the quality and performance of our application. You’ll be talking directly with users to understand their problems and develop the features they need most.In...

djr in Wimbledon is seeking a Senior Software Engineer to help build and evolve a large-scale SaaS platform, blending C#/.NET backend with TypeScript/React frontend and AI-enabled development. You will own features end-to-end—from discovery and design through deployment and production—while mentoring peers and advancing secure, observable software and...

Aave Labs is seeking a Senior React Native Engineer to build the Aave App across Android and web. You will own features from design to release, collaborating with design, product, backend, iOS, and protocol engineers to deliver secure, intuitive savings journeys.You will ship customer-facing features using React Native, TypeScript, and React, build...

Overview Relay is fundamentally reshaping how goods move in an online era. Backed by Europe’s largest-ever logistics Series A ($35M), Relay is scaling faster than 99.98% of venture-backed startups. We’re assembling the most talent-dense team the logistics industry has ever seen. Relay’s Mission is to free commerce from friction. Today, high delivery...

We’re fixing the most broken process in business. Whether it’s SaaS, hardware, or contractors, a typical B2B purchase drags on for 3+ months, spawns 50+ emails, and pulls in multiple stakeholders across Finance, Legal, Security, and IT. Nobody likes it, and it slows businesses down. Omnea exists to change that. Our AI-native platform connects the people,...

Adaptyv is building an automated lab that lets AI agents run biology experiments. We're entering the era of agentic science where AI models can now design novel proteins, propose hypotheses, and iterate on experimental results. But they can't run the experiments themselves - that's still a manual, months-long process. We're building the infrastructure that...

SGI in London seeks a Principal AI Software Engineer to lead the development of agentic AI security applications, APIs and services, while also writing production-quality code. You will shape target architectures with software and solution architects, coordinate workloads of engineers, and champion secure development practices across the CI/CD platform.This...

What You'll Be Doing- Design, build, and operate AI‑enabled software and platform solutions- Develop and maintain API‑driven services and integrations that allow systems to work effectively with AI capabilities- Contribute to the evolution of existing applications towards modern, service‑based and cloud‑native architectures- Implement and operate...

Albert Bow Limited is seeking a Forward Deployed Engineer in London to work directly with customers and shape the next generation of the platform. You will own the delivery from discovery through production, building across the frontend, backend and data layer, and shipping AI-powered capabilities that solve real operational problems.The role requires strong...

Job Title: Senior Engineering Manager Location: London Our Mission: Omnea is the agentic operating system for procurement. Procurement touches every pound a business spends, yet requests still stall for weeks and approvals get lost in inboxes. Our AI-first platform changes that: our agents capture requests, route approvals, onboard suppliers, flag risk and...

Plentific is a property technology platform used by housing providers, local authorities, housing associations, asset managers, and contractors across the UK and Germany to manage repairs, maintenance, compliance, and contractor operations at scale.Our platform combines marketplace infrastructure, workflow software, automation, and operational analytics. It...

This cybersecurity startup is building AI-powered threat detection that actually works. While legacy security tools drown analysts in false positives, their platform uses machine learning to identify real threats with precision — from insider threats to zero-day exploits to nation-state attacks. Their customers include FTSE 100 companies and critical...