601 to 625 of 2,270 React Jobs in the UK

AI Engineer

Location
Greater London, England, United Kingdom
advantageous. Strong Python, plus practical TypeScript or JavaScript. Able to build APIs and services using FastAPI, Flask or comparable technologies, and usable interfaces using React, Next.js or equivalent. Demonstrable experience building AI-enabled products or workflows using LLM APIs, structured outputs, retrieval and embeddings, tool calling, agents or workflow orchestration. ...

Principal Software Engineer - C#

Location
City Of London, England, United Kingdom
custom .NET host); comfortable with WebSocket bridges, local service APIs, or IPC mechanisms to connect web UIs with native desktop applications.Sufficient front-end literacy (React, TypeScript, Node) to make architectural decisions, review code, and collaborate effectively with dedicated front-end teams.Demonstrated ability to leverage coding agents in spec-driven development ...

Principal Software Engineer - C#

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
.NET host); comfortable with WebSocket bridges, local service APIs, or IPC mechanisms to connect web UIs with native desktop applications. Sufficient front-end literacy (React, TypeScript, Node) to make architectural decisions, review code, and collaborate effectively with dedicated front-end teams. Demonstrated ability to leverage coding agents in spec-driven ...

Sales Engineer - Italian Speaking

Hiring Organisation
Algolia
Location
London, UK
Employment Type
Full-time
consultant, PM), ideally in the SaaS spacePrevious software development experience in one or more of the following areas: Front End: JavaScript, TypeScript, React, Back-End: Java, Ruby, Go, Node, Python, Swift/Objective-CExperience with data formats and data transformationGreat oral and written communication skillsSuperior organisational skills working with multiple ...

Full Stack Software Engineer - Application Development

Hiring Organisation
Palantir Technologies
Location
London, UK
Employment Type
Full-time
technical usersCreating low-code/no-code WYSIWYG tools, which enable application builders within Foundry to build products for their usersTechnologies We UseTypescript, React, and GQL are central to our frontend development. Blueprint as a re-usable front end component library. A combination of open-source and internal technologies that ...

Software Engineering Senior Front End Developer - eSC or eDV Clearance Required Professional Mu[...]

Location
Greater London, England, United Kingdom
account‐level delivery. Required education None Preferred education Bachelor\'s Degree Required technical and professional expertise Hands‐on experience with modern frameworks such as React, Vue.js, or Next.js, including component‐driven architecture and state management patterns. Strong understanding of responsive design principles, accessibility standards (WCAG), and user‐centric usability best ...

Senior Front End Software Engineer - Application Development

Hiring Organisation
Palantir Technologies
Location
London, UK
Employment Type
Full-time
with signal directly from our forward deployed engineers and deployment strategists to rapidly evolve our product to meet real world requirements. Technologies We UseTypescript, React, and GQL are central to our frontend development. Blueprint as a re-usable front end component library. A combination of open-source and internal technologies ...

Senior Software Engineer - API Enterprise - Full-Stack

Location
Greater London, England, United Kingdom
design fundamentals and system design are core to how you work. Roughly 80‐90% of the work is backend; working on the frontend (React/TypeScript) is a welcome plus, not a requirement. Enterprise Platform Fluency: You bring hands‐on experience with the building blocks of modern enterprise APIs ...

Lead Software Engineer - Solution & Data Architecture - B2B SaaS Fintech

Location
Greater London, England, United Kingdom
requirement exposes a gap in the platform, you name it and propose what should exist. You own feature architecture end to end, from the React frontend through our Kotlin and Spring services, across data stores and events, down to Azure. You decide what goes where, and push hard … able to reason about them, not to be a Python specialist. Fluency across the boundary: you can read and reason about a React/TypeScript frontend and hold a serious conversation about Kubernetes, cloud networking and cost. You work well with Product. You've partnered closely with ...

Senior Fullstack Engineer (Python + React.js)

Location
Greater London, England, United Kingdom
schemas to improve performance, scalability, and reliability. Implement security features, including authentication and authorization using industry-standard practices. Develop and maintain web interfaces using ReactJS Implement and maintain state management using tools such as Redux or React Query Collaborate with frontend developers to ensure efficient API integration and a seamless ...

Senior Full Stack Developer | C#.NET, React | London

Hiring Organisation
Source Group International
Location
London, UK
Employment Type
Full-time
Responsibilities Design, develop, test, and maintain scalable services using C#/.NET (ASP.NET Core) and RESTful APIs. Build responsive, accessible user interfaces using React, TypeScript, HTML, and CSS.Implement secure authentication/authorisation (e.g., OAuth2/OIDC) and follow secure coding practices. Optimise performance, reliability, and observability (logging, metrics, tracing).Work … experience in full stack development with C#/.NET and React. Strong knowledge of .NET Core, dependency injection, asynchronous programming, and API design. Strong React experience including state management and modern front-end tooling. Solid understanding of software design principles, patterns, and clean code practices. Experience with SQL databases ...

Senior Software Engineer — End-to-End Ownership & Impact

Location
Greater London, England, United Kingdom
legal professionals worldwide. You will own features across the stack with autonomy and collaborate with a talented team. You will work with TypeScript, React, Node.js, AWS, Azure and Kubernetes, mentor juniors, review code, and push for clean, scalable architecture while balancing speed and security. #J-18808-Ljbffr ...

Senior Java Full-Stack Tech Lead | Hybrid & Learning Budget

Location
Manchester, England, United Kingdom
will work in an Agile environment, delivering bespoke software and leading engineers across the full software lifecycle. A strong focus on Java, AWS, React/TypeScript and DevOps is essential for success. #J-18808-Ljbffr ...

Secure Java Fullstack Engineer (DV Cleared)

Location
West of England, England, United Kingdom
Bangura Solutions Limited in the United Kingdom is seeking a long-term Java Developer to work on a secure programme, delivering frontend (Vue/React/Angular) and backend Core Java solutions. You will be part of a team that emphasizes secure development, code reviews, and Agile methodologies. The ideal ...

Hybrid Senior Full-Stack Tech Lead — Java/AWS

Location
West of England, England, United Kingdom
build bespoke software addressing complex operational challenges. The role focuses on leading engineers, designing architectures, and delivering full-stack solutions using Java, JavaScript, React and TypeScript, with AWS cloud deployments and CI/CD pipelines. #J-18808-Ljbffr ...

Remote Software Engineer — Build Scalable, Impactful Apps

Location
Redditch, England, United Kingdom
requirement to attend the Redditch office at least once a month. You will collaborate with cross-functional teams, write and test code in JavaScript, React, NodeJS, Python, SQL, and CSS, and contribute to SDLC and Agile processes. #J-18808-Ljbffr ...

Senior Software Engineer - AI-Driven FinTech Platforms (Remote)

Location
United Kingdom
services. You’ll design platforms, services and front-ends that bring models to life for advisers and banking teams, working with Node.js/TypeScript, React and AWS. This remote-first UK role collaborates with product and AI specialists to ship reliable features and unlock scalable, compliant AI-powered solutions. #J ...

Senior Java Engineer – Remote, Full-Stack, Cloud & Ownership

Location
Bath, England, United Kingdom
full software lifecycle from requirements and design through development, testing, deployment and support. The environment is Java-centric with TypeScript/JavaScript and React, deployed on AWS, Azure and private clouds. Remote-first with occasional on-site visits, offering ownership and clear progression into #J-18808-Ljbffr ...

Senior .NET Developer — Trading IT Platform

Location
Greater London, England, United Kingdom
Trading Ltd is seeking a Senior .NET Developer to design, build, and maintain multi-asset class applications. The role focuses on Angular front-end (React acceptable) with C# .NET Core backend, Web API, and strong UX considerations. You will collaborate with IT and business teams, contributing to architecture, testing ...

Senior Full Stack Developer

Location
Belfast, Northern Ireland, United Kingdom
with product and design teams Write clean, maintainable code Participate in code reviews Requirements 5+ years of full-stack development experience Expert knowledge of React and Node.js Experience with TypeScript Strong understanding of database design Experience with cloud platforms (AWS/Azure) #J-18808-Ljbffr ...

Senior Software Engineer — Scale AI Platform with Autonomy

Location
Greater London, England, United Kingdom
stack and owning projects from design through deployment. You should have strong full-stack experience, fluency in Python or TypeScript, and experience with React, Kubernetes, and GCP. This role offers a high-trust culture and meaningful impact on AI data workflows across Europe. #J-18808-Ljbffr ...

Senior Full-Stack Engineer: AI, Data & Azure Cloud

Location
Greater London, England, United Kingdom
building modern, scalable, data-driven applications within a Trading & Supply environment. This hands-on role requires strong front-end and back-end expertise across React, TypeScript, Azure, Databricks, .NET, and Python, with opportunities to work on Generative AI, LLMs, and AI-assisted software engineering. You will mentor engineers and help ...

Senior Software Engineer — AI for AEC, Hybrid Equity

Location
Greater London, England, United Kingdom
Engineer you’ll be one of our first engineering hires, owning end-to-end features across a polyglot stack: Node/TypeScript backend API, React frontend, C#/WPF connector and Python ML/RAG workers on Azure. You’ll work directly with the founders, shape technical direction, and ship ...

Full-Stack Software Engineer – AI-Driven Platform

Location
Greater London, England, United Kingdom
software for the chemical industry. Located in Greater London, the role involves developing backend services using AWS and Typescript, along with frontend features using React and Tailwind CSS. This position promotes a hybrid working model with three days onsite at Camden. Candidates should be passionate about coding, problem-solving ...

IAM Developer | GCP | Identity & Access Management | Contract

Location
Bolsterstone, England, United Kingdom
Cloud Run, Cloud Functions, GKE) Pub/Sub/Event-Driven Architecture Terraform & CI/CD OAuth2, OIDC, JWT, SAML Nice to Have: React Kubernetes Azure AD/Entra ID Ping Identity Financial Services experience This is an excellent opportunity to work on a high-profile cloud and identity transformation ...