1 to 25 of 469 JavaScript Jobs in London

team. Essential Skills & Experience Experience developing full stack applications using modern front-end and back-end technologies. Strong programming skills in languages such as JavaScript/TypeScript, Java, C#, Python, or Node.js. Experience with front-end frameworks such as React, Angular, or Vue.js. Experience building and consuming RESTful APIs ...

successful changes, service improvements and platform stability. Essential Skills & Experience Demonstrable experience in software development using C# and .NET. Working knowledge of HTML, CSS, JavaScript or TypeScript, with exposure to a modern front-end framework such as Vue or React. Understanding of APIs and experience consuming or building RESTful services. ...

Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5, CSS3 Redux, React Hooks Responsive UI development Databases PostgreSQL, MySQL, SQL Server MongoDB (preferred) Cloud & DevOps AWS, Azure, or GCP Docker ...

Experience with FastAPI , Flask , or Django REST API and Microservices development Object-Oriented Programming (OOP) SQL and database design Frontend Strong knowledge of React.js JavaScript (ES6+), TypeScript HTML5, CSS3 Redux, React Hooks Responsive UI development Databases PostgreSQL, MySQL, SQL Server MongoDB (preferred) Cloud & DevOps AWS, Azure, or GCP Docker ...

maintainable production code in Python and TypeScript. Proven experience building complex user interfaces and software integrations using React or similar technologies. Strong knowledge of JavaScript, HTML and CSS. A good understanding of programming concepts, data structures, algorithms and HTML DOM components. Experience working with browser and web APIs, including HTML ...

e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB) for data management and optimization. Experience with ETLs and data transformation Solid expertise in HTML, CSS, JavaScript, and ReactJS. Extensive experience with cloud platforms such as AWS including services for database hosting, API management, and serverless computing. Proficiency with Docker for containerization ...

enhancements • Working collaboratively across teams to deliver digital projects and continuous improvements Essential: • Strong commercial experience in software development • Highly proficient in Python, Django, JavaScript, HTML and CSS • Experience with database design and SQL • Strong knowledge of Git and collaborative development workflows • Experience developing with React and/or React ...

Experience Strong software engineering skills across front-end, back-end and data-driven product development. Strong experience developing modern web interfaces using React, TypeScript, JavaScript, HTML and CSS. Experience using component libraries and design systems such as Material UI to build consistent and accessible user interfaces. Experience building back ...

designing and developing solutions utilising most of the following technologies:• Strong front end web development experience with Angular or React (we use Angular), Typescript, JavaScript, HTML/CSS with an eye for good UX• Experience in designing and building distributed systems using Microsoft C#, .NET Core and Web API• Experience ...

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).* **LLM experience**: Practical experience with **Large Language Models** (LLMs) such as **OpenAI**, **Anthropic**, **Mistral**, or **Llama**, and tools like **Ollama**.* **Cloud Platforms**: Proficiency ...

tools (e.g. Jenkins, GitHub Actions, Azure DevOps) Experience working in a regulated industry (e.g. financial services, insurance, healthcare) Familiarity with front-end basics (JavaScript, HTML/CSS) for full-stack contributions Knowledge of software security best practices Along with our client, we are committed to a diverse workforce ...

development using frameworks such as FastAPI, Flask, or Django; Experience designing and developing RESTful APIs; Good understanding of front-end development with React JS, JavaScript (ES6+), and TypeScript; intermediate knowledge is sufficient; Familiarity with state management using Redux or Context API and experience integrating REST APIs into front-end applications ...

Experience building production software applications. Strong understanding of software architecture and software engineering principles. Experience with one or more modern technology stacks such as: JavaScript/TypeScript React/Next.js Node.js PHP/Laravel .NET Java Good understanding of APIs and system integrations. Experience working with relational databases such ...

experience Commercial cloud experience with AWS, Azure or GCP Strong automated testing experience, including Jest/Mocha and ideally Cypress, BrowserStack or similar Excellent JavaScript fundamentals Strong communication and problem-solving skills Experience with TypeScript, SaaS/startups, generative AI APIs, creative technology, Unix/Linux or Bash ...

customers to build high-quality solutions using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest ...

customers to build high-quality solutions using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest ...

following: Dynamics 365 CE/CRM development Plugins, workflows and custom APIs Dynamics 365 configuration and customisation C# .NET Framework/.NET Core JavaScript, TypeScript, HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST ...

following: Dynamics 365 CE/CRM development Plugins, workflows and custom APIs Dynamics 365 configuration and customisation C# .NET Framework/.NET Core JavaScript, TypeScript, HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST ...

software solutions. Participate in code reviews and maintain high standards of code quality. Required Skills & Qualifications: Experience with programming languages such as TypeScript, JavaScript, and Python. Interest in modern web development and frameworks such as React and Next.js. Understanding of backend development concepts with frameworks like Node.js, Python (Fast ...

prior endeavors. In addition, the successful candidate should have:* 3+ years of proven software development experience in relevant industry, with proficiency in C#, JavaScript (React and/or Angular), Typescript, databases (relational and/or NoSQL), and cloud technologies, preferably AWS.* Experience with RESTful API design, development, and scalable microservice ...

visualisations using PowerBI, Tableau, or equivalent tools. Strong knowledge of SQL and data modelling principles. Experience in application development with proficiency in Python or JavaScript frameworks. Strong knowledge and experience of hosting in major cloud platforms (Azure, AWS, or GCP). Solid understanding of data governance, access control, and security ...

efforts, introducing new ideas and technologies What You'll Bring Proven experience as a Full Stack Engineer or similar role Expertise in Node, React, JavaScript/TypeScript, HTML, CSS, and responsive design principles Strong understanding of Back End technologies and best practices Passion for writing clean, well-tested code Experience ...

haves Degree in Computer Science, Software Engineering, or a related discipline Significant experience delivering software solutions at Principal Engineer level Strong expertise in TypeScript, JavaScript, and Angular or comparable modern front-end technologies Experience building backend services using Node.js or similar technologies Proven experience designing and developing complex distributed systems ...

haves Degree in Computer Science, Software Engineering, or a related discipline Significant experience delivering software solutions at Principal Engineer level Strong expertise in TypeScript, JavaScript, and Angular or comparable modern front-end technologies Experience building backend services using Node.js or similar technologies Proven experience designing and developing complex distributed systems ...

ever the same. Tech stack required ideally: You can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms ...