76 to 100 of 107 React Jobs in Central London

Engineer (React.js) - Global Markets Technology - Investment Bank Behind every trade, market move, and risk calculation, there’s a user interface that needs to perform flawlessly. This leading global investment bank is seeking a UI Engineer (React.js) to join its Global Markets Technology team in London (hybrid, 3 days in office … that turn complexity into clarity for trading, risk, and analytics platforms used worldwide. Responsibilities: Design and develop high-quality UI components and applications using React.js, TypeScript, and modern JavaScript. Collaborate with UX, product, and backend teams to deliver seamless, user-centric solutions. Translate complex business and technical requirements into intuitive ...

driven architecture. Build relational models in Postgres, vector search, and streaming queues (Kafka/SNS/SQS). Craft responsive interfaces and dashboards in React or Vue.js. Deploy containerized applications (Docker) on AWS using Terraform. Build practical, production-ready interfaces for LLMs, RAG pipelines, and model endpoints into core products. … What They’re Looking For Strong foundation in Python, REST APIs, microservices, and clean code principles. Practical experience with React or Vue.js. Solid Postgres/SQL, AWS, and Docker experience (NoSQL/Terraform a plus). Exposure to LLMs, RAG, or ML model integration as part of a broader engineering ...

work in a mixed team of engineers from several suppliers, alongside a dedicated AI engineering capability. The platform combines Python/FastAPI services, React and TypeScript interfaces, Camunda workflow orchestration, modular services, data persistence, and integration with existing Defence tasking processes. Despite the AI-enabled focus of the platform, this … Defence Intelligence, National Security or comparable secure environments Proven experience leading agile development teams Strong engineering background across Python, FastAPI, REST APIs, React and TypeScript Experience designing and delivering microservice architectures #J-18808-Ljbffr ...

will also have a lot of impact on our team culture, processes and norms. Taptap Send is a cross‐platform mobile app developed with React Native and TypeScript, which talks to a backend service written in Kotlin and backed by a PostgreSQL database, all of which runs … managed via Terraform. Our internal tools leverage these technologies in addition to Web React and Python. We’re an encouraging environment that values both teamwork and autonomy, and have many exciting upcoming challenges, including: scaling up to handle increased volume and complexity, improving UI and UX to drive growth ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

examples, providing precise solutions, and making corrections — with a primary focus on Python across backend services, data pipelines, and ML infrastructure, alongside JavaScript (including ReactJS), C/C++, Java, Rust, and Go. You will evaluate and refine AI-generated code for efficiency, scalability, and reliability, and work with cross-functional … Work on AI model training initiatives by curating code examples, building solutions, and correcting code — primarily in Python, with additional work in JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross ...

Fullstack Engineer (Frontend focussed) | Web Apps | React/Vue/Angular | Python | CI/CD | Financial Services | London Hybrid Working 2/3 days per week | £80,000–£85,000 + bonus + benefits Method Resourcing are working exclusively with a highly respected financial services organisation who are investing heavily … days per week travel into London. Please ensure you’re comfortable with the working pattern before applying. Fullstack Engineer (Frontend focussed) | Web Apps | React/Vue/Angular | Python | CI/CD | Financial Services | London Hybrid Working 2/3 days per week | £80,000–£85,000 + bonus + ...

interested in engineers with strong experience building sophisticated web applications rather than simple websites. You'll ideally have experience with: JavaScript and TypeScript React AG Grid (or similar enterprise data grid technologies) State management (Redux, Zustand or equivalent) Performance optimisation and rendering large datasets WebSockets or real-time data streaming ...

/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 ...

capabilities that can be adopted across teams, regions, and business domains. Responsibilities Build reusable frontend foundations for internal web applications Develop and maintain shared React/TypeScript packages, components, and tooling Create and improve starter templates, application scaffolding, and developer workflows Help define standards for application structure, testing, deployment … shared UI tooling Support adoption through documentation, examples, and direct collaboration with developers across technology and investment teams Required Qualifications Strong professional experience with React and TypeScript Strong understanding of modern frontend architecture and application structure Experience building reusable UI components, shared packages, or internal developer tooling Experience with routing ...

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 ...

html Integration of Fragments ...these fragments share overlapping content related to the required experience in languages and frameworks including JavaScript, React, TypeScript, Python, and GoLang. This overlap allows us to piece them together in the correct order. After combining the overlapping parts, we get: "Be a part of London … opportunity... In terms of the tech itself, the team is looking for an engineer who has experience in the following languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J ...

SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £150,000 + equity Typescript/Node, React, GCP/AWS Staff Product Engineer - We're working with a rapidly scaling AI-native SaaS company who raised an impressive Series B round … problems while shaping the product experience for thousands of users. What will the Staff Product Engineer do? Contribute across the stack (Node.js/Typescript, React, GCP), designing scalable architectures to support rapid product growth. Lead end-to-end feature development, from concept through to release. Champion engineering best practices ...

Front End Developer - React, RxJS, Typescript, Websockets, EDA Working with a global financial services organisation who are looking for a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) t o join a small, collaborative team responsible for building a modern trading application … Rate - £700-£800/day Inside IR35 via Umbrella Skills and Experience Required Frontend: Proven experience as a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) Real-Time: Experience with Real-time Data. Stakeholder Management: Interface with project stakeholders to gather requirements ...

SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £130,000 + equity Typescript/Node, React, GCP/AWS Senior Product Engineer - We're working with a rapidly scaling AI-native SaaS company who raised an impressive Series B round … solving challenging technical problems while shaping the product experience for thousands of users. What will the Senior Product Engineer do? Contribute across the stack (React/Typescript, Node, GCP), with a strong focus on frontend systems Design scalable frontend architectures to support rapid product growth Lead end-to-end feature ...

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 Low-Latency) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high … 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 ...

high-performance user interfaces. You will work across the full UI development lifecycle, from design through testing and deployment, using HTML, CSS, JavaScript, React and TypeScript. Strong experience with real-time communication (WebSockets, SSE) and REST APIs, plus state management (Redux) and SPA architectures, is essential. #J-18808-Ljbffr ...

with plenty of opportunity to get involved in technical decisions. You’ll be: Building applications with Python and TypeScript Developing front-end solutions using React Building backend services, APIs and integrations Working with cloud technologies Using Docker and modern development practices Contributing to technical design and architecture Reviewing code … requirements into working software Helping shape solutions rather than simply being handed tickets What we're looking for Strong commercial Python experience TypeScript and React Experience building APIs and backend services Cloud and Docker experience Good software engineering fundamentals Comfortable communicating with technical and non-technical stakeholders Experience supporting ...

grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries. Responsibilities Build and maintain responsive, performant web applications using React, TypeScript, Next.js, and modern front-end practices Collaborate with backend engineers to implement APIs and ensure smooth data integration Work closely with product and design … Bachelor’s degree in a technical or analytical field, or equivalent practical experience 5+ years of hands-on experience developing web applications with TypeScript, React, HTML, CSS, and Next.js Proven experience building and shipping consumer-facing products Strong communication skills and ability to collaborate effectively with cross-functional teams Understanding ...

HCLTech is seeking a UI Developer with expert React, TypeScript and low-latency focus to build time-critical, high-availability web applications. You will contribute across the full UI development lifecycle, from design through testing and deployment, delivering high-performance interfaces. The ideal candidate will have hands-on experience with … HTML, CSS, JavaScript, React and Redux, plus real-time communication via WebSockets/SSE and testing with RTL/Jest. #J-18808-Ljbffr ...

Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £150,000 per annum plus equity Typescript/Node, React, GCP/AWS Engineering Lead - We're working with an amazing scale-up who raised a very impressive Series B round earlier in 2025. They … stack before taking on leadership responsibilities. What you'll do Lead a small team of Engineers while staying deeply technical Contribute across the stack (React, Node.js/Typescript, GCP) with backend experience highly valued Shape and deliver high-quality features that scale with thousands of customers Advocate for engineering best ...