1 to 25 of 89 React Jobs in the City of London

Collaborate with cross-functional teams to deliver key milestones Provide support for production systems when required Technical Skills & Experience Essential: Strong experience with Next.js, React, and TypeScript Solid front-end engineering experience, ideally within real-time or trading environments Experience with WebSockets or SignalR for real-time communication Backend development ...

interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript and/or Typescript/React is a plus ...

interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript and/or Typescript/React is a plus ...

priorities in a fast-paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes ...

client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern DevOps practices including CI/CD pipelines and automated testing ...

Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, 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 MongoDB. This ...

traditional software projects. Required Skills and Experience Backend development using Python with FastAPI or TypeScript with Node.js or Express Experience building microservices architectures React and TypeScript front end development experience Familiarity with Next.js or Vite Experience with Generative AI frameworks such as LangChain, LangGraph or CrewAI Experience working with Large ...

components Experience enabling data scientists and engineers with Python-based development workflows and tooling Technology Stack: Azure Cloud Services C# (.NET 10) Python React.js and modern JavaScript (ES6+) Snowflake (Data Warehouse) Apache Airflow Terraform dbt SQL Server ...

Inside IR 35, hybrid working. Initially 6-9 months About the role: Experience with C#/.NET Additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Experience with Kubernetes deployments; able to build CI/CD pipelines About ...

Full Stack Engineer (Data): 5+ years experience in full-stack development or data integration/migration . Strong hands-on experience with JavaScript, TypeScript, React and Python . Strong data analysis and problem-solving skills . Experience in agile/continuous delivery environments . Ability to work proactively with minimal ...

domain modelling, integration patterns, and performance considerations. Experience with Entity Framework Core code-first migrations and data modelling. Strong front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL ...

Responsibilities Design and deliver scalable, secure web applications Build backend services using Python (e.g. FastAPI, Flask, or Django) Develop modern frontend applications using React and TypeScript Design and maintain RESTful APIs 5+ years’ experience as a full-stack developer AI & Modern Development Practices (Required) Experience using AI coding tools ...

Desirable skills: We would love to hear from you if you also have experience in multi-threaded application development, JavaScript front-end frameworks like React, network programming (TCP/UDP), or distributed version control systems like Git or PlasticSCM. Salary: £40,000 to £110,000, Benefits: Gym membership, pension scheme ...

Collaborate with engineers, product, and design to ship high-quality features Requirements Experience in product-focused engineering environments Strong skills in TypeScript, Node.js, and React Experience with modern frontend tooling (e.g. Tailwind or similar) is a plus Solid knowledge of relational databases (e.g. PostgreSQL) Experience with cloud platforms and infrastructure ...

. Comfortable working with Python and familiar with modern cloud infrastructure (AWS, Terraform, PostgreSQL, Modal). Ability to create intuitive, polished user interfaces using React and Tailwind CSS. Value fast iteration and a hands-on, collaborative approach. Excellent problem-solving and communication skills. Benefits: Above-market compensation and significant founding ...

detail typography, spacing, and design consistency. Experience with Azure DevOps, CI/CD pipelines, and Azure Monitor. Familiarity with LogicApps, Azure Web Apps, React, or additional front-end frameworks. Experience with automated testing frameworks. Skills & Competencies Ability to communicate complex technical concepts clearly to non-technical audiences. Excellent time management ...

bring solid full‐stack engineering experience (not purely front end or back end), working across the full development lifecycle. Your core technology experience includes React, Node.js, Python, and Java. You have hands‐on cloud experience, designing and delivering solutions on AWS and/or Azure. AI experience is essential ...

frontend systems into a new bespoke solution incorporating an API currently being developed in Python (FastAPI with PostgreSQL) and a web-app frontend in React.js or similar. WHAT YOU’LL DO Lead the CMS architecture, the heart of the creation and distribution of our assets and data. In collaboration with ...

scale-up experience (ideally in fast-growth environments) Role 1: AI Engineer Expert-level Python with exposure to frontend technologies (TypeScript/React preferred) Hands-on experience with LLMs, prompt engineering, and evaluation frameworks Ability to ship AI-powered features end-to-end Minimum 3 years of experience Role ...

workflows across messy company systems Turn ambiguous business problems into clear technical components that can be automated Work across Ruby, Python, Rust, TypeScript, and React depending on the problem Ship production features that affect revenue, retention, and operational efficiency Improve reliability, scalability, and developer speed as the platform expands Collaborate ...

academic group Experience with production machine learning or LLM-based systems Exposure to enterprise data platforms or similar tools Frontend development experience (e.g., React) Familiarity with distributed computing frameworks (e.g., Spark) What’s on Offer Competitive compensation package, including equity Comprehensive benefits Hybrid working model Opportunity to build products ...

engineer Strong understanding of modern frontend development and product-focused UI/UX Highly proficient in TypeScript and modern JavaScript frameworks (ideally Next.js/React) Experience integrating APIs and building scalable web applications Experience with Shopify, headless commerce, or customer-facing e-commerce products Strong engineering fundamentals across testing, version ...

involved throughout the entire software lifecycle; design, deployments and continuous improvement whilst leading a small global team. Requirements: -Strong experience with Vue.js/React for frontend development -Python knowledge for backend services -Experience with security protocols -Understanding of the AWS stack -Lead experience is ideal - direct reports/mentoring This ...

scale systems end-to-end, not those with superficial exposure or purely design-focused experience. Candidates must have strong experience of Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/ ...

best practices, CI/CD and platform reliability Helping scale engineering processes and team structure as the company grows Tech Environment Go GCP Linux React/TypeScript GitHub/CI/CD Cloudflare Sentry What they’re looking for Strong backend engineering experience with Go Good understanding of distributed/ ...