1 to 25 of 184 Permanent React Jobs in London

Senior Front End Developer Senior Front End Developer - Global Workforce Technology Innovator - London (Tech stack: React, React Native, TypeScript, JavaScript (ES6+), HTML, CSS, Component Libraries, Design Systems, State Management (Redux, Zustand, MobX, Apollo), Web & Mobile UI/UX, Accessibility, Front End Architecture) Our client began over a decade ago with … impact, this is your chance to join a company where your work genuinely matters. This is a role for engineers who are passionate about React , committed to building intuitive, high-performance interfaces, and excited about delivering cross-platform experiences using React Native . You'll play a key role ...

Google Cloud. Knowledge of microservices architecture and related tools. Experience with testing frameworks like Mocha, Chai, or Jest. Familiarity with front-end technologies like React, Vue, or Angular is a plus. Experience with back-end technologies like Java or .Net is a plus Package And Benefits Competitive salary, dependent ...

Build GenAI applications using frameworks like LangChain, LangGraph, or CrewAI. Develop microservices using Python (FastAPI) or TypeScript (Express). Create front-end applications with React, TypeScript, and frameworks like Next.js or Vite. Integrate LLMs (e.g., OpenAI, Anthropic, Mistral) and vector databases (e.g., ChromaDB, Pinecone, PGVector). Deploy solutions using ...

scalable, secure, and user-focused solutions. Key Responsibilities Develop microservices using Java (Spring Boot). Build responsive front-end applications using JavaScript/TypeScript, React, HTML, and CSS. Use Git-based version control and CI/CD pipelines (GitHub, GitLab, Jenkins). Containerize applications using Docker and manage deployments ...

production systems as needed. Skills Proficiency in C#, .NET 8, Python, RESTful APIs, and microservices architecture. Strong Front End development experience using Nextjs/React/Typescript, with familiarity in wireframing tools (eg, Figma). Hands-on experience in building distributed systems with messaging technologies such as RabbitMQ or Kafka. ...

systems What You Need 5+ years experience as a Software Engineer with strong Java/J2EE expertise (Java 8+, Spring, Hibernate) Frontend Angular experience (React may be considered) Cloud experience with microservices (AWS preferred) Docker and Kubernetes hands-on experience Fintech/regulated industry experience preferred Why Join? Java-focused ...

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 ...

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 ...

experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript ...

experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript ...

similar languages Full-Stack Development Solid software engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture, API design (REST, GraphQL) Experience with containerization (Docker, Kubernetes) and cloud-native development patterns DevOps & SRE Practices Experience implementing ...

focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record of leading software architecture ...

scale environments such as Investment, Asset, or Wealth Management. Proven track record of leading frontend and mobile engineering teams , delivering high-quality applications in React/React Native , Swift (iOS) , and/or Kotlin (Android) . Strong understanding of secure API integration , authentication flows , and modern UI/UX architecture … continuous learning and improvement . Thrives in fast-paced, regulated environments where speed, compliance, and innovation go hand-in-hand. Your Technical Toolkit React/React Native/TypeScript Swift (iOS)/Kotlin (Android) JavaScript/HTML/CSS Figma/Git Testing frameworks : Jest, Cypress, XCTest, Espresso CI/ ...

/CD testing workflows. Skills & Experience Back End: Proficiency in Node.js (preferred), or .NET/Java. Front End: Solid experience with JavaScript , React , and TypeScript . Strong foundation in Agile/Lean methodologies and modern software delivery practices. Working knowledge of UI/UX principles and prototyping tools. Excellent communication ...

real impact. As a software engineer you will: Build and scale end-to-end features across the full stack using .NET and React Work with SQL and NoSQL databases to deliver robust, high-performance solutions Design, maintain and optimise cloud-based services on AWS, GCP or Azure Implement and improve ...

Tealium Event Stream, and Adobe Analytics Experience of integrating data sources via web and hypermedia APIs Proficient in Web Technologies like HTML, CSS, JavaScript, React.js, Next.js and Node.js, and in event-driven and eventual consistency systems using Kafka, .Net, Java, REST APIs, AWS, Terraform and DevOps Nice to have:experience ...

They strongly believe in professional development opportunities and empowering employees to make a difference! Required Skills & Experience: Extensive experience in frontend technologies (e.g., Vue.js, React) with a focus on UI/UX. Proven backend expertise, particularly with Java (Python, Node.js a plus), and experience building distributed microservices-based architectures. Strong ...

Java backend (Spring Boot) You have experience with relational databases and SQL query writing You have some front end experience with JavaScript, Angular or React You have a strong understanding of REST APIs and real-time systems You're comfortable working with legacy Ruby You have a strong knowledge ...

Your Skills and Experience Proven experience in full stack development with Node.js Strong understanding of RESTful API design and microservices Experience with frontend frameworks (React, Vue, etc.) Familiarity with event-driven systems (Kafka, SQS) Proficiency in AWS services and cloud-native deployment Experience with Terraform and Docker Comfortable working ...

Your Skills and Experience Proven experience in full stack development with Node.js Strong understanding of RESTful API design and microservices Experience with frontend frameworks (React, Vue, etc.) Familiarity with event-driven systems (Kafka, SQS) Proficiency in AWS services and cloud-native deployment Experience with Terraform and Docker Comfortable working ...

scale. Proficiency in at least two programming languages such as Java, .NET, TypeScript, or Python, along with experience in modern frontend frameworks like React.js or Stencil. Deep understanding of authorization and authentication standards (OAuth) and secure-by-design development practices. Strong awareness of OWASP Top 10 and a proactive approach ...

WhyconsiderjoiningtheDigital&Datacommunity Growaflexibleanduniquecareerwithinatrust-basedenvironmentthatvaluesexcellence,innovation,andcuriosity.Youhavetheoptiontoprogresswithusonatechnicalcareertrack.NoneedtogoontothePartnercareertrackifthisdoesntalignwithwhatyouwanttodo. Workonabroadvarietyofprojectsandtechstacksforclientsacrosssevensectors-noprojectiseverthesame Techstackrequiredideally: Whileweadvocateforusingtherighttechfortherighttask,youcanexpecttoworkwiththefollowingtechnologiestoensurescalable,high-performanceapplications: ProgrammingLanguages:JavaScript/TypeScript,Java,C# Frameworks:Vue/Angular/React/Node/Next,Spring/SpringBoot,.NET/ASP.NET Cloudplatforms:AWS,GCP,Azure CI/CD:Jenkins,GitHubActions,AzureDevOps IaC:Terraform,CloudFormation,AzureBicep PragmaticandsafeusageofAIthroughtheSDLC ...

pipelines . As a Software Engineer first , you will have deep expertise in at least one programming language ( Python, Node.js, Java, JavaScript, TypeScript, React ) and proven experience in productionising GenAI solutions , including integrating LLMs, LangChain, OpenAI API, or Claude . This is a rare opportunity to join ...

have? 4+ years commercial experience in Software Engineering C# .Net 8 Azure experience including Azure SQL, Data Factory and Functions Containerization (AKS/Kubernetes) React/JavaScript Entity Framework Core Web APIs Unit/Integration testing experience To find out more and explore this opportunity further, please apply! Please note ...