1 to 25 of 101 React Jobs in the City of London

looking for a skilled Senior Frontend Developer with strong experience in TypeScript and React Native to join our development team. In this role, you will build scalable, high-performance web applications and work closely with cross-functional teams to deliver outstanding user experiences. This is initially a six-month contract … week in the London office, and is full-time at 40 hours per week. Key Responsibilities: Develop and maintain scalable, responsive applications using React.js, React Native, and TypeScript Work closely with UX/UI designers to deliver intuitive and engaging interfaces Write clean, efficient, and maintainable code following best practices ...

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 ...

commercial experience developing with C# and .NET (Core/.NET 6+) Experience building RESTful APIs and microservices in enterprise environments Good working knowledge of React and modern front-end development AWS services (ECS/EKS, Lambda, S3, RDS) API Gateway Experience with event-driven architectures, ideally using Kafka Understanding ...

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 ...

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 ...

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 ...

with meaningful autonomy and visibility Tech stack • Backend: Python (FastAPI, Django, Flask or similar) • Frontend: TypeScript with modern frameworks such as Vue.js, React, or Next.js • Infrastructure: AWS, GCP, or Azure • Bonus areas: AI integrations, workflow tooling, event driven systems, product analytics What they’re looking for • Experience building production grade ...

styles and needs. Desirable technical skills include: Full Stack Development with Java and Spring Boot Python Quants JavaScript UI/UX with Angular or React SQL/Relational Databases - Oracle, MySQL, PostgreSQL Cloud Computing, preferably with AWS Foundational AI skills: Copilot chat, coding assistants, prompting, RAG, and agents ...

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 ...

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 ...

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 ...

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 ...

highly product-focused environment where Engineers help shape what gets built, not just how it’s built. The current stack includes Python, PostgreSQL, React/Next.js, AWS, and Docker. However, they’re flexible on background and open to Engineers coming from Node.js or other backend stacks if fundamentals are strong. ...

Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Development or support of Python, Machine Learning, Java/J2EE/REACT Java Script, and Node applications Research latest technology, concepts, conceptualize solution and develop proof of concept that will improve resiliency and performance of the production ...

. 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 ...

platforms and code-based approaches (Python, PySpark, SQL) Developing user-facing applications, dashboards, and workflows using modern front-end tools such as TypeScript and React Supporting the design and evolution of data architectures that unify multiple systems into a single operational view Embedding AI capabilities into applications using modern ...

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 ...

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 ...