676 to 700 of 998 React Jobs in London

/LLMs, recommender systems, reinforcement learning) to enhance user experience in a meaningful business domain. Contribute across the tech stack : You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative … fast-paced or startup environments, with an understanding of both scale and quality from larger tech organizations. Hands-On Full Stack Skills : Proficiency in React/Typescript and/or Python (RESTful APIs, data pipelines), plus comfort with deploying and maintaining services on modern cloud platforms (GCP preferred ...

engineer who is, at heart, a builder who works fluently with agentic AI coding assistants. Someone who is equally at home crafting a refined React user interface and designing the distributed Java services and data flows behind it. AI tools have made producing code far faster; they have not made … what a passing suite does and does not prove about meeting the requirements. Front-end development with TypeScript and JavaScript, building user interfaces in React and working with the Node.js tooling around them. Back-end service development in Java, implementing and consuming REST APIs. Preferred Qualifications Fluency in reading, reviewing ...

Lightning AI is seeking a Frontend Engineer to scale the UI and frontend infrastructure of our platform. You will own key features end-to-end, collaborating with engineering, product, and design to ship iterative improvements. ...

Principal Front End Developer/Engineer (React) London/WFH to £120kAre you an experienced Front End Developer, with technical project leadership and client facing skills You could be progressing your career at a global technology consultancy.What's in it for you:Salary to £120kPension, Life Assurance, Income ProtectionPrivate medical … client sites), you'll join a friendly, diverse, upbeat team.About you:You have experience within a financial services or Fintech environmentYou have strong React, JavaScript/TypeScript experienceYou have experience with modern CSS techniques (Flexbox, Grid) and frameworks like SASS, Material UI and BootstrapYou have experience with Redux, Webpack ...

Modo Energy is hiring frontend engineers to join product teams (Terminal, Data, Ko, or Modelling). You’ll contribute to a shared TypeScript/React/Next.js codebase in a monorepo with a company-wide design system, delivering AI-assisted development across frontend, backend, and infrastructure. You’ll work with ...

some experience with web frameworks like FastAPI, Django or Flask. We use FastAPI.Experience with Javascript/Typescript and a modern JS framework such as React, Angular or Vue.js. We generally use React & NextJSStrong engineering principles & practices: design patterns, testing, clean code and a good reviewerPrevious experience working in a product ...

KafkaLocation-London/Warsaw-3 Days from OfficeType-Perm/FTEJob SummarySeeking a Specialist with 5 to 7 years of experience in Core Java React and cloudnative technologies to design develop and maintain scalable applications within the investment banking domain Job Description Design and develop robust applications using Core Java … ReactJS and associated frameworks Utilize multithreading algorithms and data structures to build efficient and scalable solutions Develop and maintain cloudnative applications leveraging Kubernetes and Amazon AWS services Implement RESTful APIs and gRPC for seamless backend and frontend integration Build responsive and userfriendly UI components using JavaScript TypeScript HTML5 CSS3 ...

engineers and contribute to team growth and delivery standardsEssential ExperienceSolid experience building and deploying complex web application platforms in productionExpert-level proficiency in **TypeScript, React, HTML5, CSS, and JavaScript (ES6+)**Demonstrated experience profiling and optimising high throughput React applications (Web Workers, virtual rendering, memory management)Experience with desktop containers: **Chromium ...

latest industry trends and best practices in mobile development.Drive continuous improvement initiatives to enhance development processes and workflows. Required qualifications, capabilities and skillsProficiency in React frameworkBuilding applications using React Native/Expo in TypeScript or JavaScriptStrong knowledge of React Native architectureUnderstanding of REST APIs and GraphQLAbility to write testable, clean … JavaScript codeComfortable working with projects partially or fully using TypeScriptUsing latest React features such as Suspense and HooksEnd to end testing applications with WebdriverIO/Playwright Extensive experience in modern mobile developmentHands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applicationsPreferred qualifications ...

React work that powers markets rather than another customer-facing product. You'll build the web and desktop applications traders and market operators use to run, monitor and control exchange infrastructure, technology this firm licenses out to other markets too. Ownership over ticket-shuffling, on a platform where unreliable code … visible consequence. The work Most React jobs are another customer-facing product. This one powers technology used by financial markets around the world.You'll build the webapps and desktop tools that traders and market operators use to trade on, monitor and control exchange infrastructure. That technology doesn't just ...

love to hear from youKey ResponsibilitiesLead the design, development, and delivery of scalable, responsive full stack features for the Business Account portal using React, TypeScript, and GraphQL, with ownership spanning both frontend implementation and integration with backend services.Work closely with product and design teams to understand merchant needs and translate … professional experience in frontend/web development.Expert-level proficiency in TypeScript, including advanced type manipulation, generics, and understanding of complex type inference.Strong proficiency in React.js and its core principles, developed with a type-safe approach.Experience supporting Backend services in Java and Spring BootExtensive experience with Next.js for server-side rendering ...

prototype through final development, testing and into production. The platform modernises an existing ASP.NET/on-premises SQL application and is now built using React, Node.js, TypeScript, Azure SQL and Azure Web Apps, within a Microsoft 365 environment. A strong prototype has already been developed, providing the baseline … turning this into a robust, scalable and production-ready application. Key Responsibilities: Take the existing prototype through development, testing and production. Work across React, Node.js, TypeScript and Azure SQL. Improve the data model and database architecture, addressing current limitations and manual processes. Develop a more effective and maintainable front end. ...

prototype through final development, testing and into production. The platform modernises an existing ASP.NET/on-premises SQL application and is now built using React, Node.js, TypeScript, Azure SQL and Azure Web Apps, within a Microsoft 365 environment. A strong prototype has already been developed, providing the baseline … turning this into a robust, scalable and production-ready application. Key Responsibilities: Take the existing prototype through development, testing and production. Work across React, Node.js, TypeScript and Azure SQL. Improve the data model and database architecture, addressing current limitations and manual processes. Develop a more effective and maintainable front end. ...

play a key role in building MCP integrations, agent-to-agent connectivity and robust API services, while also developing responsive, accessible interfaces in React and TypeScript. What you'll be doing Own the application and integration layer of AI products end to end, covering APIs, integrations, service boundaries and frontend … APIs using REST and/or GraphQL, including authentication, authorisation, versioning and streaming interfaces such as SSE or WebSockets. Build production frontend applications using React, TypeScript and JavaScript. Work closely with UX and product teams to turn designs into accessible, responsive and intuitive interfaces. Develop AI-specific user experiences including ...

play a key role in building MCP integrations, agent-to-agent connectivity and robust API services, while also developing responsive, accessible interfaces in React and TypeScript. What you'll be doing Own the application and integration layer of AI products end to end, covering APIs, integrations, service boundaries and frontend … APIs using REST and/or GraphQL, including authentication, authorisation, versioning and streaming interfaces such as SSE or WebSockets. Build production frontend applications using React, TypeScript and JavaScript. Work closely with UX and product teams to turn designs into accessible, responsive and intuitive interfaces. Develop AI-specific user experiences including ...

backend developers and wider Agile delivery teams. Key Responsibilities Develop responsive, accessible and user-friendly web interfaces. Build and enhance front-end applications using React or Angular. Work with TypeScript/JavaScript (ES6+), HTML5 and CSS3. Integrate front-end applications with backend services through REST APIs. Implement effective application state … application development using Azure. Contribute to continuous improvement of development standards, practices and user experience. Technical Skills Essential Strong commercial Front-End Development experience. React or Angular. TypeScript/JavaScript (ES6+). HTML5 and CSS3, including responsive design. REST API integration. State management experience, ideally Redux or NgRx. Unit testing ...

.NET Developer, .NET 10.0, C# 14, Agile - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce the arrival … have commercial experience with: .NET, .NET Core, C#, Azure SQL and Agile. Full training will be provided into: .NET 10.0, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB. If you are dedicated to the youthful optimism of problem solving through ...

approach Good understanding of development methodologies and design patterns Cloudflare knowledge C# ASP.NET and .NET Core are a plus but not necessary Experience with React, TypeScript, Astro, and NodeJS is a plus Willingness to learn; candidates do not need to meet every listed requirement Core Competencies Demonstrates expertise in developing … Soft Skills Mentoring Collaboration Continuous Improvement Industry Keywords Public-Facing Systems Internal Insurance Systems Tools & Technologies AWS Lambda DynamoDB Azure Cloudflare C# ASP.NET NodeJS React TypeScript Astro #J-18808-Ljbffr ...

Graduate .NET Developer - Investment Bank - London (Tech stack: Graduate .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, Graduate .NET Developer) Our client is the world's most respected banking institution. Their story dates … C#.NET winforms) and Azure SQL. Our client offers training in: Our client offers training in: .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB. This is a truly amazing opportunity to work for a prestigious banking brand ...

enabled solutions. This role is primarily focused on Snowflake, Azure, Python and CI/CD, with some exposure to .NET/C# and React/TypeScript environments. The successful candidate will build and support scalable data solutions, contribute to cloud-based platform development and help drive engineering best practice across … GitHub. Experience using AI development tools such as GitHub Copilot or Microsoft Copilot. Financial Services, Asset Management or Wealth Management experience .NET/C# React/Typescript Desirable Skills Power BI Advanced Snowflake capabilities (Snowpipe, Streams, Tasks) #J-18808-Ljbffr ...

.NET Developer, .NET 10.0, C# 14, Azure SQL - Investment Bank - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is the world's most respected banking institution. … skill set that encompasses: .NET, .NET Core, C# and Azure SQL. Our client offers training in: .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB. This is a truly amazing opportunity to work for a prestigious banking ...

typePerm.NET Developer, .NET 10.0, C# 14, Azure SQL – Investment Bank – London(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer)Our client is the world’s most respected banking institution. … skill set that encompasses: .NET, .NET Core, C# and Azure SQL. Our client offers training in: .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Node.js, Elasticsearch and MongoDB.This is a truly amazing opportunity to work for a prestigious banking brand ...

doing Designing, developing and testing high-quality software solutions Building backend applications and services using Java Developing modern user interfaces with TypeScript, JavaScript and React Working with AWS, Azure and private-cloud environments Creating and improving CI/CD pipelines using tools such as GitLab Contributing to technical design … love to hear from you if you have: Strong commercial experience with Java Full-stack development experience using TypeScript, JavaScript and React Experience working with AWS or Azure A good understanding of automated testing, CI/CD and modern engineering practices Experience working across the software development lifecycle Strong communication ...

listed on Euronext Paris. Bigger Challenge/Scope: Join a team that supports, enhances, and modernizes complex enterprise applications built on Java, Spring Boot, React JS, Microservices, AWS, and Cloud technologies . You will have the opportunity to work on large-scale digital transformation initiatives, application modernization, cloud migration, performance … customer outcomes. Better Technology: Team is no longer limited to traditional application support. It leverages modern technologies and engineering practices including Java, Spring Boot, React JS, AWS Cloud, Microservices Architecture, DevOps, CI/CD, SRE, Automation, and AI-driven operations . This provides exposure to modern engineering practices and cutting ...

growth potential. What You'll Do Design, build, and maintain modern full-stack applications from frontend to backend. Develop high-quality user interfaces using React and Next.js. Build scalable backend services and APIs using Python (FastAPI or Django preferred). Design and optimize relational and NoSQL databases. Build reliable background … engineers and contribute to a collaborative engineering culture. What We're Looking For 5+ years of professional software engineering experience. Strong production experience with React and Next.js. Excellent backend development skills using Python. Experience with FastAPI or Django. Strong knowledge of PostgreSQL and relational databases. Experience with Redis, background workers ...