626 to 650 of 999 React Jobs in London

Full Stack Developer - DV Cleared

Hiring Organisation
CBSbutler
Location
London, United Kingdom
Salary
£ 80 K
Full Stack Developer500-540 per day | Outside IR35Java | Spring Boot | React | TypeScript | Secure Digital PlatformsLocationLondon (MOD site)Working Pattern4 days per week onsiteClearanceCurrent DV Security Clearance requiredBackgroundMOD/Defence/National Security experience requiredThe OpportunityWe're looking for an experienced Full Stack Developer to help build and deliver secure, modern … from technical design and development through to testing, deployment and continuous improvement.Key ResponsibilitiesDesign, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript.Develop scalable backend services and secure RESTful APIs.Build intuitive, accessible and responsive frontend applications.Develop reusable frontend components aligned with established design system principles.Integrate frontend ...

C# Developer

Hiring Organisation
CEI England Limited T/A CEI GB
Location
Isleworth, London, United Kingdom
Employment Type
Contract
Contract Rate
£380 per day
Agile environment. Key Responsibilities Design, develop, and maintain scalable backend services using Java and/or C# . Build modern, responsive user interfaces using ReactJS . Develop and support RESTful APIs and microservices . Design, optimize, and maintain database solutions using Oracle and Couchbase . Implement and support event-driven … Required Skills & Experience Strong commercial experience with Java and/or C# (experience in both is highly desirable). Strong frontend development experience with ReactJS . Proven experience building and supporting REST APIs and microservices . Experience working with relational and NoSQL databases, particularly Oracle and Couchbase . Experience with ...

Full Stack Developer - DV Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day
Full Stack Developer £500-£540 per day | Outside IR35 Java | Spring Boot | React | TypeScript | Secure Digital Platforms Location London (MOD site) Working Pattern 4 days per week onsite Clearance Current DV Security Clearance required Background MOD/Defence/National Security experience required The Opportunity We're looking … design and development through to testing, deployment and continuous improvement. Key Responsibilities Design, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript. Develop scalable backend services and secure RESTful APIs. Build intuitive, accessible and responsive frontend applications. Develop reusable frontend components aligned with established design ...

Full Stack Developer - DV Cleared

Hiring Organisation
CBSbutler
Location
London, UK
Employment Type
Full-time
Full Stack Developer500-540 per day | Outside IR35Java | Spring Boot | React | TypeScript | Secure Digital PlatformsLocationLondon (MOD site)Working Pattern4 days per week onsiteClearanceCurrent DV Security Clearance requiredBackgroundMOD/Defence/National Security experience requiredThe OpportunityWe're looking for an experienced Full Stack Developer to help build and deliver secure, modern … technical design and development through to testing, deployment and continuous improvement. Key ResponsibilitiesDesign, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript. Develop scalable backend services and secure RESTful APIs. Build intuitive, accessible and responsive frontend applications. Develop reusable frontend components aligned with established design ...

.NET Developer

Hiring Organisation
Noir
Location
London, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL. ...

Senior Java fullstack Developer

Hiring Organisation
NPAworldwide Recruitment Network
Location
London, UK
bespoke software solutions Providing technical direction and communicating clearly with clients Producing solution architectures and technical designs Building full-stack applications using Java, JavaScript, React and TypeScript Designing and deploying cloud-based solutions, primarily using AWS Creating continuous integration pipelines using tools such as GitLab Working across the full software … Engineer or Technical Lead with: Strong commercial Java development experience Good experience designing and building solutions in AWS Full-stack development experience using JavaScript, React and TypeScript Previous experience leading engineers or providing technical direction An understanding of software architecture and technical design Experience working throughout the full software development ...

Full Stack Developer

Hiring Organisation
Version 1
Location
London, United Kingdom
Salary
£ 80 K
group of software engineering professional’s. Learning, developing your skills and becoming a rounded developer in the process. You will have experience with Python, React, and Large Language Models (LLMs) to support and enhance our client’s AI-driven initiatives. Beyond technical expertise, you will follow software engineering best practices … Team and an Agile environmentDesign, build and support scalable and secure full-stack web applications using Python (FastAPI)Exposure to front-end development using React/Typescript.Support and enhance existing web applications to ensure stability and performance.Work with business and technical stakeholders to turn requirements into technical solutions.Build and integrate ...

Full Stack Developer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
group of software engineering professional's. Learning, developing your skills and becoming a rounded developer in the process. You will have experience with Python, React, and Large Language Models (LLMs) to support and enhance our client's AI-driven initiatives. Beyond technical expertise, you will follow software engineering best practices … Team and an Agile environmentDesign, build and support scalable and secure full-stack web applications using Python (FastAPI)Exposure to front-end development using React/Typescript. Support and enhance existing web applications to ensure stability and performance. Work with business and technical stakeholders to turn requirements into technical solutions. ...

Full Stack Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
group of software engineering professional's. Learning, developing your skills and becoming a rounded developer in the process. You will have experience with Python, React, and Large Language Models (LLMs) to support and enhance our client's AI-driven initiatives. Beyond technical expertise, you will follow software engineering best practices … Agile environment Design, build and support scalable and secure full-stack web applications using Python (FastAPI) Exposure to front-end development using React/Typescript. Support and enhance existing web applications to ensure stability and performance. Work with business and technical stakeholders to turn requirements into technical solutions. Build ...

Full Stack Developer

Hiring Organisation
Version 1
Location
London, United Kingdom
Salary
£ 60 K
fastest-growing consultancies globallyJob DescriptionJob Summary: We are looking for a highly skilled and experienced Technical Lead with over 10+ years of expertise in React, Nodejs and AWS to join our innovative team. The ideal candidate will be responsible for designing and implementing robust, scalable, and high-performance software solutions. … least 3 years in technical leadership role in product development or services environment. Strong expertise in Nodejs, Express.js, and related frameworks. Good experience in React or similar front-end technologies. Good experience and certification in AWS cloud platform. In-depth knowledge of software architecture principles and design patterns. Experience with ...

Vice President, Site Reliability Engineering

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular. Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery … development experience, with hands-on expertise in Python and Java for backend or service-layer engineering. Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases. Proven experience designing and deploying end-to-end solutions, from application development through production ...

Vice President, Site Reliability Engineering

Location
Westminster, West End, United Kingdom
Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular. Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery … development experience, with hands-on expertise in Python and Java for backend or service-layer engineering. Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases. Proven experience designing and deploying end-to-end solutions, from application development through production ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
principles and Def Stan 00-056 safety boundaries. Full-Stack Application Development: Design and build resilient, secure web applications, microservices, and APIs (TypeScript, Node.js, React, or Python) for cloud and hybrid MoD landing zones. Edge & Tactical Systems Integration: Develop native Android background services (Kotlin on ART), IPC/AIDL interfaces … software development standards and Secure by Design (SbD) frameworks. Full-Stack Engineering (Web & APIs) 4+ years of production experience with modern Web stacks (TypeScript, React, Node.js, or Python/FastAPI). Strong API design experience (REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). Systems ...

Vice President, Site Reliability Engineering

Hiring Organisation
The Bank of New York Mellon
Location
London, United Kingdom
Salary
£ 80 K
Services.Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular.Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery, and workflow … stack development experience, with hands-on expertise in Python and Java for backend or service-layer engineering.Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases.Proven experience designing and deploying end-to-end solutions, from application development through production deployment ...

Vice President, Site Reliability Engineering

Hiring Organisation
The Bank of New York Mellon
Location
London, UK
Employment Type
Full-time
Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular. Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery … development experience, with hands-on expertise in Python and Java for backend or service-layer engineering. Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases. Proven experience designing and deploying end-to-end solutions, from application development through production ...

Lead AI Software Engineer

Hiring Organisation
Wells Fargo
Location
London, United Kingdom
Salary
£ 80 K
reusable patterns for MCP-enabled tools, skills, and agent-driven workflows. In this role you will Design, build, and maintain AI-enabled applications using React, TypeScript, Python, and modern API frameworks. Develop frontend applications aligned with enterprise UI standards and reusable component patterns. Build and maintain Python backend services, APIs … integrating with REST APIs, asynchronous services, and event-driven architectures. Experience integrating with AI, LLM-based systems, agent platforms, or AI APIs. Experience with React and TypeScript for building frontend applications. Experience withauthentication, authorization, and access control patterns, including SSO, OAuth 2.0, API keys, token-based access, RBAC, and scopes. ...

Senior Java Developer

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
Role ProfileThe Senior lead Scala Engineer will play a key role in the engineering and delivery of a critical market‐infrastructure service within the Equities platform, with a strong focus on AWS cloud‐native development. ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
About Swap Swap is the infrastructure behind modern agentic commerce. The only AI-native platform connecting backend operations with a forward-thinking storefront experience. Built for brands that want to sell anything - anywhere, Swap centralises ...

Senior Java Developer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
Role ProfileThe Senior lead Scala Engineer will play a key role in the engineering and delivery of a critical market‐infrastructure service within the Equities platform, with a strong focus on AWS cloud‐native development. ...

Senior Frontend Engineer - React/TypeScript (Hybrid UK)

Location
Greater London, England, United Kingdom
Octopus Energy is seeking a Senior Frontend Engineer to join our Flexibility team. You will own frontend strategy, build advanced customer journeys, and deliver scalable interfaces that power millions of low-carbon decisions. Collaborate with ...

Full Stack Developer | .NET & React | Quant Background | London, Hybrid

Hiring Organisation
Source Group International
Location
London, United Kingdom
Salary
£ 120 K
comfortable reasoning about complex systems, models, and workflows. The role has a balanced 50/50 split between C#/.NET backend development and React frontend development, and sits within a highly collaborative analytics team. You will work closely with traders, analysts, and operations teams to design and deliver systems … Location: London, United Kingdom (Hybrid) Key Responsibilities Design, build, and enhance end-to-end analytics applications using C#/.NET on the backend and React on the frontend. Work across the full development lifecycle, from concept and modelling through to implementation, testing, and deployment. Collaborate directly with business users (e.g. ...

Senior Frontend Engineer, Flow Builder - Remote

Location
Greater London, England, United Kingdom
team, ensure fast editor performance, and drive the product forward with minimal gaps between browser and device rendering. The role requires strong React and TypeScript experience, editor-class interface skills, and a product-focused mindset. #J-18808-Ljbffr ...

Realtime Quant Frameworks Engineer: Scalable Research Platform

Location
Greater London, England, United Kingdom
develop systems that support high-impact research. The role involves designing a core scheduling platform in F# and contributing to a TypeScript/React UI, enhancing the efficiency of computational workloads. The position offers highly competitive compensation, a generous annual leave of 35 days, comprehensive healthcare, and a commitment ...

AI-Native Product Engineer (Hybrid London)

Location
Greater London, England, United Kingdom
problems into practical software. You’ll own features from discovery to release, shape solutions, and ensure data quality while balancing speed and maintainability. Strong React/TypeScript, AI experience, and data tooling are prized. #J-18808-Ljbffr ...

Frontend Engineer: AI-Driven UI for Energy Modeling

Location
Greater London, England, United Kingdom
TransitionZero is seeking a Frontend Engineer to join the interface team and help shape Scenario Builder with React and TypeScript. You will build new capabilities, improve the foundations of the product, and create intuitive experiences over large datasets and complex energy models. You will work with product, design, backend engineers ...