1 to 25 of 489 JavaScript Jobs in London

Models (LLMs) Generative AI Microservices GraphQL CI/CD Infrastructure as Code Event-driven architecture Agile product development Accessibility (WCAG) Technology Stack React TypeScript JavaScript Node.js Express.js Python Microsoft Azure Docker OAuth REST APIs Git AI-assisted development tools CI/CD What's on Offer Competitive salary Hybrid working ...

Docker and Kubernetes or similar containerisation technologies. Experience with CI/CD, DevOps practices and Git. Proficiency in modern web technologies and frameworks, including JavaScript, React or Angular. Strong understanding of software engineering principles, including system design, data structures, testing and code quality. Understanding of cybersecurity principles and secure development ...

development, including design, development, testing, and deployment. Some of the languages and frameworks our teams work with: Java Python C#/.NET Full stack JavaScript (React, Node.js etc.) We expect you to have deep experience in at least one of the above, you will also be flexible and comfortable picking ...

including AWS and Azure Skills and Experience Essential Extensive experience building microservices using Java and Spring Boot Experience developing front-end web applications using JavaScript and/or TypeScript, React, HTML and CSS Experience using Git for version control Experience with repository management platforms such as GitHub or GitLab Experience ...

design, development, testing, and deployment. Some of the languages and frameworks our teams work with: Java/Kotlin Python C#/.NET Full stack JavaScript (Express, React, Node.js etc.) We expect you to have deep experience in at least one of the above you will also be flexible and comfortable ...

bring: Extensive experience as a Senior QE SDET Engineer or Senior Developer Has breadth of experience across different tech-stacks, such as JavaScript/TypeScript, Java, C#, or Python, amongst others Experienced in RAG Weaviate, OpenAI, Agents, MCP, Langchain, Prompt Engineering, Browser-Use, and Django Experienced building AI Tools, Agents ...

data-driven applications using Python Hands-on Reactexperience developing modern, responsive, and scalable web applications in production environments. Strong experience with TypeScript/JavaScript, HTML, CSS, and modern frontend development practices. Experience designing and developing RESTful APIsand integrating with third-party services. Solid understanding of software design principles, design patterns ...

collaborate effectively across teams while supporting technical delivery. Technical Expertise Strong proficiency in front-end technologies: React/Angular/Vue, HTML5, CSS3, JavaScript/TypeScript Solid experience in back-end technologies: Node.js/.NET/Java/Python, REST APIs, GraphQL Strong understanding of databases: SQL (PostgreSQL, MySQL ...

standards and best practices. Technical Skills We are interested in engineers with experience across some of the following technologies: Programming: Python, Java, C++, C#, JavaScript Cloud: AWS, Azure, GCP DevOps: Jenkins, GitLab, GitHub Actions, CI/CD Infrastructure as Code: Terraform, Ansible, Chef, Puppet Containerisation: Docker, Kubernetes, Helm, OpenShift Operating ...

NoSQL databases like Redis, DynamoDB.Good understanding of the Agile methodologies and working in Scrum/SAFE practicesFamiliarity with front-end technologies (HTML, CSS, JavaScript) is a plus. Exposure to the AI/ML techniques & methodologies is a plus. Knowledge of software development best practices, including version control (Git) and continuous ...

Agile development cycles, contributing to sprint planning, code reviews, and continuous delivery. Key Skills/Experience: Proven experience in Node.js development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture. Experience with building and maintaining RESTful APIs. Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL ...

using VBA.Experience with Excel VBA and Office automation. Experience with Azure/Azure DevOps. Experience with Entity Framework/Entity Framework Core. Knowledge of JavaScript, TypeScript, HTML, and CSS.Experience with CI/CD and automated deployment pipelines. Experience with Power BI, Dataverse, SharePoint, or Teams. Microsoft certifications. Previous experience ...

Demonstrable experience building or architecting Agentic AI solutions and applying AI to real business use cases Broad programming experience with in-depth skills in: JavaScript, TypeScript, C# Frameworks: Angular, .NET, Less/Sass, gRPC Strong testing discipline: unit testing and integration testing (essential) Strong experience with containers and platforms: Docker ...

development experience building enterprise web applications and services, ideally including payroll, compensation, equity, HR, finance, or tax domains. Strong experience designing and building large JavaScript applications with Next.js and/or React (TypeScript, state management, performance optimization). Strong backend development experience in C# and .NET (ASP.NET, WebAPI, MVC) including ...

applications and writing performant code, Git, abstracting code into core libraries and creating reusable components, debugging and systems analysis, HTML5, CSS/SASS & Javascript and TypeScript, familiarity with a frontend framework such as Angular/React/Vue (Angular preferred), CI/CD and pipelines. Leadership - You are a strong ...

absence of other senior engineering leaders. Experience operating within Agile and DevOps delivery models. Desirable Skills: Application & Integration Technologies C# .NET Entity Framework JavaScript React Vue.js Windows Presentation Foundation (WPF) REST APIs Microservices architecture AI & Data Technologies AWS SageMaker Large Language Model (LLM) integrations AI-assisted analytics solutions Python-based ...

Boot and Web Services. Strong understanding of REST APIs, Spring Boot, Micro Services and SOA web services. Expertise with front-end technologies such as JavaScript, TypeScript, Angular, and/or ReactJS.Ability to explain design decisions and trade-offsTechnical leadership and influenceConfidence driving technical discussionsProficiency in SQL, including query writing, stored ...

Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing ...

polyglot is preferred. Strong understanding of software development methodologies such as Agile, TDD and DevOps. Some proficiency in multiple programming languages such as Python, JavaScript, or similar. Extensive experience writing well-tested code. Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/ ...

polyglot is preferred. Strong understanding of software development methodologies such as Agile, TDD and DevOps. Some proficiency in multiple programming languages such as Python, JavaScript, or similar. Extensive experience writing well-tested code. Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/ ...

Front/Backend Engineer in Typescript in a professional environment. Front-end skillsProficient in HTML5, CSS3, and TypescriptProficient in React, Redux, ReactQueryExperience with modern JavaScript frameworks - ReactKnowledge of version control systems (Git)Understanding of cross-browser compatibilityFamiliarity with RESTful APIs, GraphQL and WebsocketsExperience with CSS pre-processors e.g. TailwindBack ...

youve served Written production-quality code using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL Leveraged AI-assistive development tools for tasks like scaffolding, refactoring, debugging, test generation, and documentation Experience building ...

MongoDB or another document database Cloud experience (AWS, Azure or GCP) Working knowledge of Linux/Unix Nice to have Angular, React, Node.js or JavaScript Keycloak, Kafka or ActiveMQ, Mockito, Jackson, JAX-RS Experience with high-traffic sites or large data sets How to apply Apply with your ...

understanding of MVC architecture , design patterns, and dependency injection. Experience building and maintaining RESTful APIs . Frontend Development Strong knowledge of HTML5, CSS3, and JavaScript (ES6+) . Commercial experience building applications with React.js . Experience with component-based architecture and state management using: React Hooks Redux Context API NgRx Experience ...

clearance Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge of integration testing and automation frameworks ...