react native developer jobs in London

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development,...

GenieoWeb is seeking a Web Developer to build next-generation UI for a fintech FX trading platform. You will work on high-performance, low-latency front-end systems using React, Redux and TypeScript in a fast-paced agile team.Initially 100% remote with potential future office presence in London. Strong emphasis on UX, real-time messaging, and high-quality...

Sky is seeking a Senior Software Developer to join the UK Tech team. You will design, build, and evolve software platforms and data products enabling analytics, automation, and AI-driven decisions across Sky’s networks.You will work with data scientists, network experts, and product stakeholders to deliver scalable cloud-native solutions. The ideal...

GlaxoSmithKline in the UK is seeking Software Engineers for the AI for Science (AI4S) team to design, build and operate scalable cloud-native infrastructure and services that power production AI models and agentic applications.You will own reliability across the full development life cycle, implement CI/CD, automated testing, monitoring and incident...

Location: This is a hybrid remote/in-office role. Medidata follows a hybrid office policy in which employees who are hired for an in-person position are expected to work on site a certain number of days per week. About our Company: Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials....

Crisil is seeking a talented full stack developer with expertise in finance processes within investment banking. The role involves designing and developing responsive front-end applications with React and TypeScript, collaborating with backend developers, and maintaining real-time dashboards.Key skills include strong front-end web technologies knowledge,...

Henderson Scott is seeking an experienced Senior Front-End Contractor to lead development of secure, scalable user interfaces using React and Next.js. The role focuses on delivering high-performance applications within UK-based remote work, collaborating with backend engineers and product teams, and adhering to modern front-end tooling and the AWS Cloudscape...

bp in London is seeking a Software Engineer to help deliver data and AI solutions for front-office users. You will design cloud-native platforms, develop Python services, and build REST APIs while working with Docker, Kubernetes, and cloud providers like Azure or AWS.The role offers a hybrid London work arrangement, exposure to advanced AI systems, and...

LA International is seeking an AI-Native Systems Engineer to design, validate and deliver AI-enabled software in distributed systems environments. You will work with small, highly capable teams augmented by AI agents, applying AI coding and verification to architecture and development tasks.The six-month outside IR35 contract requires travel to the office...

Company DescriptionVersion 1 has celebrated 30 years in the IT industry and continues to be trusted by global brands to deliver IT solutions that drive customer success. Version 1 has several strategic technology partners including Microsoft, AWS, Oracle, Red Hat, OutSystems and Snowflake. We’re also an award-winning employer reflecting how employees are...

Keylane UK is seeking a Full Stack Developer to build SiteView with React front-end and Java/J2EE back-end, in a Docker/AWS environment.You will contribute across the development lifecycle, prototype features, write tests, and deploy, collaborating with a small team to deliver scalable SaaS for insurers. You will investigate issues, optimize performance, and...

The OpportunityWe are partnering with a Tier 1 investment bank on a major, multi-year technology transformation within its global Prime Finance Equities business.The Equity Accelerator programme is focused on modernising the technology backbone of the business — re-engineering core trading and post-trade systems, developing new data and market-expansion...

As the primary technical leader for your accounts, you will own the end to end technology strategy, providing overarching visibility across technical workstreams and aligning architecture direction, workload prioritization, and adoption milestones with customer goals and Microsoft Cloud Success metrics. A key focus of the role is helping Digital Natives...

The Gym Group is seeking a Lead Full-Stack Developer to drive architecture and delivery across React/Next.js and .NET Core in a hybrid setup based in London. You will mentor engineers, shape technical direction, and collaborate with product, design, architecture, and partners to deliver high-quality digital experiences.You will design and govern AI-assisted...

HCLTech is seeking a Senior Java Engineer to strengthen its RMS Trade Processing platform. You will design and deliver scalable full-stack solutions using Java, Spring Boot, Angular, and React, contributing across backend and frontend components in a business-critical system.The role requires 8+ years of enterprise software experience, expertise in RESTful...

Bestway Group is modernising its application estate towards cloud-native architecture. We are seeking a hands-on Lead Application Architect to own design, set engineering standards, and drive AI-assisted practices across the team.You will bridge Solution Architects and developers, turning high-level designs into implementable LLDs, ensuring secure,...

Lorien in London is seeking 2 experienced Front End Engineers to join an AI-focused programme delivering modern user interfaces. The role is a 6-month initial contract inside IR35, with 1-2 days per week onsite in London city.You'll design and develop React and Redux based applications, taking features from prototype to production while shaping front-end...

Citi is seeking a Senior Front-End Developer (React) in London to lead the build-out of the Equity Derivatives technology suite. You’ll shape frontend delivery for marking and pricing across trading desks, partnering with global teams to drive reliable, scalable software.You’ll contribute as a technical lead within Equity technology, guiding junior...

JPMorganChase in London seeks a Software Engineer to help build and sustain trusted AI-enabled data platforms. You will contribute as a core technical member of an agile team, delivering scalable, secure software aligned with the firm’s business goals.The role emphasizes production-grade Python development, containerized environments, cloud-native design,...

Our Future Health UK is seeking a Senior Application Security Engineer to embed security into fast‑moving delivery pipelines within a cloud‑native environment. You will influence security tooling, design secure architectures, and mature our Secure Development Lifecycle.Join a hands‑on team delivering security across Azure/AKS, Databricks, Snowflake and...