1 to 25 of 31 React Jobs in the City of London

software applications. Strong understanding of software architecture and software engineering principles. Experience with one or more modern technology stacks such as: JavaScript/TypeScript React/Next.js Node.js PHP/Laravel .NET Java Good understanding of APIs and system integrations. Experience working with relational databases such as PostgreSQL or MySQL. ...

seeking a highly skilled Specialist with 5 to 7 years of hands-on experience in Core Java, React, and cloud-native architecture to join our client's Investment Banking engineering team. In this role, you will design, build, and maintain high-throughput, low-latency applications tailored for risk management systems. ...

SOLID principles and software design patterns Desirable Experience Healthcare or NHS environments Azure Health Data Services FHIR Infrastructure as Code Bicep, Terraform Angular or React Dynamics 365 F&O exposure Enterprise integration platforms and event-driven architectures What's Required? This role would suit a specialist Dynamics developer who enjoys ...

highly fluid, rapidly changing environment. If that's you, we would like to hear from you. Basic Qualifications Experience building modern UI products using React Proven ability to lead engineering teams and deliver complex products with multiple stakeholders Experience architecting, designing full stack apps in AWS Prior experience with working ...

Hybrid and requires onsite attendance in Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker, Kubernetes (AKS) Azure DevOps … Design, develop, and maintain scalable full stack applications across cloud and web technologies Build responsive front-end applications using modern JavaScript frameworks such as React or Angular Develop secure and scalable back-end services, APIs, and integrations using .NET, Python, and Azure services Design and implement AI-powered solutions including ...

software from scratch and iterate quickly You have strong technical skills, primarily with Python You have experience with RESTful APIs (they use FastAPI); TypeScript, React and other web technologies such as HTML5, CSS3 would be of benefit You have experience with LLMs and agentic AI, like to get your hands ...

distributed, service-oriented architectures using Java or Kotlin, ensuring reliability and maintainability Modern UI developmen t: Create intuitive and responsive user interfaces using React, improving how salespeople access insights and manage client workflow Feature developmen t: Contribute to the development of data-driven application features that enhance sales workflows ...

.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 ...

grade applications, AI powered workflows and bespoke integrations that solve real business problems. You’ll need experience with: Python and modern full stack development (React and Node.js) AWS, Docker, Kubernetes and CI/CD APIs, data pipelines and PostgreSQL AI technologies including LLMs, RAG and agentic workflows Taking applications from ...

months, with possible scope to extend. They are ideally looking for someone available to start ASAP. Requirements: Strong commercial TypeScript across the full stack React and Next.js on the frontend Node.js and REST APIs on the backend PostgreSQL, Docker and AWS Experience with WebXR, Meta Quest or PWAs is preferred ...

have strong C# .Net, ASP.Net development experience You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management ...

coding hygiene and system architecture Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and advanced applied experience Proficiency in React, JavaScript/TypeScript, including automated unit/integration testing Respect for clean coding and best practices Hands-on practical experience in system design, application development ...

high-quality features and contribute to architectural decisions. You will mentor engineers, optimize performance, and work with modern tools like Docker, AWS, Angular/React, and AI-assisted capabilities. #J-18808-Ljbffr ...

features end-to-end, collaborate with product and customers, and apply AI/code tooling to accelerate delivery. Familiarity with AWS services and React is preferred. #J-18808-Ljbffr ...

grasp of C# and some front end technology. Requirements) 5+ years of commercial experience in C# Some exposure to front end technology: Angular/React current experience working in a trading environment (financial, commodity etc) Understanding a full trade lifecycle Exceptional communication skills Ability to make both the product ...

maintaining scalable backend services Ability to work independently and contribute within an agile delivery team Demonstrating autonomy, problem-solving, and stakeholder engagement Desirable Skills: React TypeScript Full stack development experience Experience integrating frontend applications with Python-based APIs Reasonable Adjustments: Respect and equality are core values to us. ...

/week in office Duration - Initially 6 months Rate - £550-£650/day Inside IR35 via Umbrella Skills and Experience Required TypeScript, Next.js or React AWS and Terraform Experience providing feedback to engineering teams via code review Exposure to a wide range of languages, frameworks, and cloud technologies Core Competencies ...

experienced Senior Frontend Developer to join their team in London on a hybrid basis. The Senior Frontend Developer will bring expertise in React and Next.js and will have a passion for building scalable user interfaces. We are looking for a hands on developer who will contribute towards/own frontend … architecture designs and quality code standards. You will design, develop and maintain high quality frontend features using React and Next.js. React/Next.js/JavaScript/TypeScript/App Router/Server/Rendering/Turbopack/Architecture Experience: Strong professional experience building applications with React and Next.js (ideally React ...

Infrastructure as Code, CI/CD Use of Middleware and RESTful or GraphQL APIs Microservices and MACH Architectures. HTML, CSS, Javascript frameworks such as React, or Mobile technologies such as SwiftUI, Kotlin, Flutter or React‐native CMS, DXPs and common MarTech SaaS products integration Atlassian, Azure DevOps, GitLab or similar ...

doing: Develop and integrate APIs to support modern application experiences Build and automate workflows using Azure Logic Apps Create clean front-end features using React, Angular or Vue.js Deliver back-end services using .NET, Node.js, or Python Work with JSON and JavaScript to build and consume data-driven interfaces Script … bring: Proven experience in API development and building integration layers Strong Azure capability, including Azure Logic Apps Front-end development experience with React/Angular/Vue.js Back-end development experience with .NET, Node.js or Python Working knowledge of C# and JavaScript, with confidence using JSON Ability to develop with ...

Senior Full Stack Lead Engineer ReactJS, TypeScript, JavaScript, C#/.NET Banking London This is a new and exclusive opportunity for a Senior Full Stack Lead Engineer/software developer with expertise across ReactJS, TypeScript, JavaScript, C#/.NET to join this investment Banking client as they expand their full … stack software developer team in London city. Role details Title: Senior Full Stack Lead Engineer Technical stack: ReactJS, TypeScript, JavaScript, C#/.NET Employer: investment Banking Location: London City and home working hybrid 50/50% Permanent role, salary £90,000- £130,000 plus bonus This is a new opportunity ...

Agent. We are nimble, innovative and move quickly, using the latest technologies available to us within the group. Our tech stack includes Python and React/Next.js, makes extensive use of LLMs via API, and is deployed on OSS2 Kubernetes within Marsh Tech. Being forward-deployed means we build … role. Your role is to lead on the engineering development and maintenance of the AI technology we build, spanning the backend (Python), front-end (React and Next.js) and deployment (OSS2/Kubernetes). You will also get into the AI Agent plumbing and agent resilience. AI Agent quality and trust ...

/KYB across corporate, fund, intermediaries and sub-accounts. You will be part of a team building a single page application that runs on React 18, TypeScript (strict), TanStack Query/Form/Router, Tailwind + a Radix/shadcn component system, Vitest + RTL + MSW. You make … sounds the alarm if we are attempting to build the wrong things. Key Responsibilities Design and build new features in a form-heavy, React single page application Thoroughly test everything you build to prove your software works Make architectural calls on your domain, record down, present and defend them ...

Title: Full-Stack Developer (Java & React) Location: London, UK (Hybrid - 3 Days Office/2 Days Remote) Employment Type: Permanent/Full-Time About the Role: We are seeking an experienced Full-Stack Engineer (5-7 years) to join a leading global financial institution in London. You will design, build … maintain high-performance, cloud-native applications supporting critical financial operations. Key Responsibilities: Design and deliver end-to-end applications using Java (Spring Boot) and React . Build scalable backend microservices, REST APIs, and gRPC services. Utilize Kafka for real-time event streaming and data processing. Deploy and maintain applications ...

billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Job Description: UI Developer (React, TypeScript and AI) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance … across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise- Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management libraries ...