176 to 200 of 2,665 JavaScript Jobs in London

grade solutions with Microsoft Power Platform (Power Apps, Automate, BI, Virtual Agents). Proficiency in developing .NET-based solutions, including experience with C#, ASP.NET, JavaScript, HTML, CSS, SQL, and related frameworks. Solid hands-on experience with SharePoint Online development and SPFx. Strong data modelling and analysis background, with working knowledge More ❯

grade solutions with Microsoft Power Platform (Power Apps, Automate, BI, Virtual Agents). Proficiency in developing .NET-based solutions, including experience with C#, ASP.NET, JavaScript, HTML, CSS, SQL, and related frameworks. Solid hands-on experience with SharePoint Online development and SPFx. Strong data modelling and analysis background, with working knowledge More ❯

Azure/Google ecosystems helpful but not required -?Strong familiarity with general modern web and mobile application development, including hands-on experience working with JavaScript (Typescript preferred) and Python stacks -?Cross functional team collaboration experience, especially working with engineers and user experience/product designers, as well as external stakeholders More ❯

Proven leadership experience in engineering, mentoring, and talent development. Strong experience in the full software development lifecycle with languages/frameworks like React, Redux, JavaScript, TypeScript, HTML5, CSS3, Java 17+, Spring Boot, and relational databases. Broad technical understanding across software development, architecture, service operations, DevOps, and cloud. Experience with agile More ❯

SC 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 More ❯

GCP, or Azure), containerisation, and CI/CD pipelines Familiarity with scalable data delivery architectures (e.g., microservices, serverless frameworks) Front-end development skills (React, JavaScript, Streamlit, etc.) Familiarity with geospatial tools and frameworks (Mapbox, Leaflet, CesiumJS, etc.) Familiarity with UX/UI design principles and interactive web-based visualisation  Location More ❯

GCP, or Azure), containerisation, and CI/CD pipelines Familiarity with scalable data delivery architectures (e.g., microservices, serverless frameworks) Front-end development skills (React, JavaScript, Streamlit, etc.) Familiarity with geospatial tools and frameworks (Mapbox, Leaflet, CesiumJS, etc.) Familiarity with UX/UI design principles and interactive web-based visualisation  Location More ❯

GCP, or Azure), containerisation, and CI/CD pipelines Familiarity with scalable data delivery architectures (e.g., microservices, serverless frameworks) Front-end development skills (React, JavaScript, Streamlit, etc.) Familiarity with geospatial tools and frameworks (Mapbox, Leaflet, CesiumJS, etc.) Familiarity with UX/UI design principles and interactive web-based visualisation  Location More ❯

Desired Skills & Experience: Excellent problem-solving and analytical skills, with experience applying modern software design patterns. We work full stack and so proficiency with JavaScript (ES6+), React and Typescript along with a good understanding of (or willingness to learn) HTML and CSS is a big plus. Familiarity with modern architectural More ❯

and what you have: A degree in Software Engineering, or related STEM degree 7+ years of hands-on full-stack programming experience using Java, Javascript, Scala/Python Experience working with big-data stack, including (but not limited to) spark/hadoop, kafka, Aerospike/Dynamodb Experience with AWS tech More ❯

SC 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 More ❯

Java ecosystem. Java Full-Stack Implementation Architect and build backend services using Java-based frameworks (Spring Boot, Jakarta EE, etc.). Optionally leverage modern JavaScript/TypeScript front-end libraries (React, Vue.js, etc.) if applicable. Ensure code quality, reliability, and performance across all layers. Database Expertise Work at least one More ❯

Online, Power Apps, GitHub, MS Teams, etc. In-depth knowledge & experience using Visual Studio, with one of the programming languages: C#/Java/JavaScript/Python, and PowerShell. In-depth knowledge and thorough experience of using Serverless, SOAP, XML, REST, JSON, EDI, XSLT, Async/Sync, Request/Response More ❯

remote debugging of applications Effective communication and team working skills Skills we’d like: Good knowledge of HTML and CSS Wider practical experience with JavaScript web front end frameworks Practical experience developing Microservice based solutions Practical experience of the Behaviour-Driven Development approach In addition, we are looking for candidates More ❯

deployment, ensuring high-quality and timely delivery. Required Skills and Experience: 3+ years of professional experience in full-stack software development. Strong proficiency in JavaScript, TypeScript, Node.js, React.js, Yarn, and NPM Optimize UI/UX for responsiveness, accessibility, and performance Understanding of microservices, and event-based architecture. Hands-on experience More ❯

background in software engineering with hands-on experience in developing, evaluating, and deploying complex systems. Proficiency with relevant programming languages and frameworks such as JavaScript (ES6+), React, Typescript, Kotlin, Java, Scala, C# or other relevant backend technologies. Familiarity with modern architectural patterns such as microservices, micro-frontends. Ability to write More ❯

on experience on the LAMP stack Good knowledge of HTML 4 and 5 Understanding of CSS cascading, specificity, inheritance, floating, and positioning Experience with JavaScript, AJAX, and DOM manipulation Experience with unit and functional testing Knowledge of application containerization with Docker Excellent problem-solving skills Desirable: Enterprise level/ERP More ❯

language such as Python and experience with concurrency and memory management. Responsive web development, with professional React/Angular/Redux experience and advanced JavaScript proficiency. NoSQL databases such as MongoDb and Elastic Search. Designing enterprise-level applications, or analyzing raw data sets, using Snowflake Preferred Qualifications Knowledge or interest More ❯

development, with a strong portfolio of complex, scalable, and high-performance web applications Expert-level proficiency in modern front-end technologies including HTML5, CSS, JavaScript, AJAX, and JSON Strong back-end development skills using languages and frameworks such as PHP, Python, Node.js or other languages Deep understanding of databases, both More ❯

certification from one of the main cloud providers (e.g., AWS, Azure, GCP) You have exposure to other programming languages such as Go, Rust, or JavaScript You contribute to open-source projects or community involvement in tech forums If you're excited about this role but your past experience doesn't More ❯

Engineering, Computer Science, or related technical discipline with proven experience maintaining production software in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, or related field OR equivalent More ❯

C#, .Net) Strong experience working within a Cloud software engineering environment, especially using Amazon Web Services Good experience developing microservices and APIs Front-End JavaScript Frameworks, especially Angular Knowledge and application of software engineering practices (e.g. Unit testing, TDD, CI/CD, SOLID, BDD etc.). Proven ability to work More ❯

Waters: Extensive knowledge and proven experience as a software developer, with exposure to back-end technology stacks (C#, .NET). Experience with Front-End JavaScript Frameworks, especially Angular. Good experience working with Amazon Web Services, Microservices, API development. Knowledge and application of software engineering practices (e.g., Unit testing, TDD, CI More ❯

scripting languages; Python, GO, PowerShell, Bash, Groovy Programming language with a working knowledge in at least one of Java, C# (.NET Framework/Core), JavaScript (Node.js), Ruby, C++ Developer tooling; Full stack CI/CD, GitLab, Jenkins, Sonatype Nexus Knowledge and working experience of containerising application components including writing DockerFiles More ❯

Demonstrate good judgement in selecting methods and techniques for obtaining solutions Must Haves 5+ years of full stack web development experience in Python, Django, JavaScript, HTML5, React (or similar Frontend UI frameworks such as Vue, Angular), CSS 3+ years of production support experience for enterprise-class customers At least More ❯