1 to 25 of 92 JavaScript Jobs in Essex

environments where agility and ownership are essential Proven technical leadership experience, whether mentoring developers, leading projects, or driving architectural decisions Expert proficiency in JavaScript/TypeScript with modern frameworks such as React, Next.js, or Vue for building responsive front-end experiences Strong back-end capabilities with Node.js and Express, plus ...

environments where agility and ownership are essential Proven technical leadership experience, whether mentoring developers, leading projects, or driving architectural decisions Expert proficiency in JavaScript/TypeScript with modern frameworks such as React, Next.js, or Vue for building responsive front-end experiences Strong back-end capabilities with Node.js and Express, plus ...

Someone who enjoys working across the full software lifecycle including architecture, implementation, testing, deployment and iteration Technologies you will work with • Languages: C#, .NET, JavaScript, TypeScript, HTML, CSS • Front end: React, Redux • Distributed and event driven: Akka, Rx • Messaging and streaming: Kafka, RabbitMQ, ActiveMQ • Databases: SQL and NoSQL • Containers & orchestration ...

years of commercial software development experience. Solid understanding of C#, ASP.NET (MVC or .NET Core), and backend fundamentals. Practical experience with React, JavaScript/TypeScript, HTML, and CSS. Familiarity with SQL databases and version control (Git). Able to follow technical guidance while also contributing ideas and solutions. Strong problem ...

years of commercial software development experience. Solid understanding of C#, ASP.NET (MVC or .NET Core), and backend fundamentals. Practical experience with React, JavaScript/TypeScript, HTML, and CSS. Familiarity with SQL databases and version control (Git). Able to follow technical guidance while also contributing ideas and solutions. Strong problem ...

years of commercial software development experience. Solid understanding of C#, ASP.NET (MVC or .NET Core), and backend fundamentals. Practical experience with React, JavaScript/TypeScript, HTML, and CSS. Familiarity with SQL databases and version control (Git). Able to follow technical guidance while also contributing ideas and solutions. Strong problem ...

teams. Strong hands-on expertise with the Microsoft .NET ecosystem: C#, ASP.NET MVC, Entity Framework, Visual Studio. Solid understanding of web technologies such as JavaScript, React, Angular, HTML. Strong grounding in software engineering principles, including SOLID, design patterns, and scalable architecture. Experience delivering enterprise-grade, cloud-hosted applications. Strong understanding ...

2+ years of Python experience in a commercial environment, with strong asynchronous programming skills 2+ years of frontend development experience with React and modern JavaScript/TypeScript Demonstrated ability to build and maintain polished, responsive user interfaces Experience with REST APIs and modern web frameworks, such as FastAPI Practical experience ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

DevOps. Solid understanding of Microsoft 365, Dataverse, and Azure Services Understanding of application lifecycle management (ALM) in Power Platform Knowledge of JSON, Power Fx, JavaScript, HTML and SQL. Qualification or high level of demonstrable capability with relevant vendor business applications Desirable: Able to demonstrate a clear understanding of, and capability ...

Fully Remote Role Must have Active SC Clearance Contract Until End of March 1st December Start Date Rate: £315 per day Skills Front-End: JavaScript, HTML; responsive UI patterns and adherence to modern web standards. Back-End: Node.js and Spring Boot microservices; RESTful API design and management (including policies, rate ...

Skills & Experience Experience in software testing or software development, with a strong focus on quality assurance. Proficiency in programming or scripting languages such as JavaScript, Java, C#, Python, or Go. Hands-on experience with modern testing tools and frameworks like Cypress, Playwright, and Postman/Newman for test automation. Self ...

Strong understanding of Microsoft 365, Dataverse, and Azure Services. Knowledge of ALM (Application Lifecycle Management) for Power Platform. Technical skills in JSON, Power Fx, JavaScript, HTML, and SQL. Demonstrable expertise with relevant vendor business applications. Desirable Knowledge of ICT standards: HMG SPF, ITIL V3, ISO/IEC 38500, ISO/ ...

Strong understanding of Microsoft 365, Dataverse, and Azure Services. Knowledge of ALM (Application Lifecycle Management) for Power Platform. Technical skills in JSON, Power Fx, JavaScript, HTML, and SQL. Demonstrable expertise with relevant vendor business applications. Desirable Knowledge of ICT standards: HMG SPF, ITIL V3, ISO/IEC 38500, ISO/ ...

Strong understanding of Microsoft 365, Dataverse, and Azure Services. Knowledge of ALM (Application Lifecycle Management) for Power Platform. Technical skills in JSON, Power Fx, JavaScript, HTML, and SQL. Demonstrable expertise with relevant vendor business applications. Desirable Knowledge of ICT standards: HMG SPF, ITIL V3, ISO/IEC 38500, ISO/ ...

Strong understanding of Microsoft 365, Dataverse, and Azure Services. Knowledge of ALM (Application Lifecycle Management) for Power Platform. Technical skills in JSON, Power Fx, JavaScript, HTML, and SQL. Demonstrable expertise with relevant vendor business applications. Desirable Knowledge of ICT standards: HMG SPF, ITIL V3, ISO/IEC 38500, ISO/ ...

Mathematics, or related field (Master's/PhD preferred). Strong programming skills in Python, SQL, C# and WPF Front-end programming experience in Javascript/React Solid understanding of quantitative finance, financial markets, and trading strategies. Knowledge/experience in portfolio management Experience with high-performance computing and algorithm ...

Mathematics, or related field (Master's/PhD preferred). Strong programming skills in Python, SQL, C# and WPF Front-end programming experience in Javascript/React Solid understanding of quantitative finance, financial markets, and trading strategies. Knowledge/experience in portfolio management Experience with high-performance computing and algorithm ...

testing, or software documentation. Background as a Senior or Staff Engineer, QA Engineer, or Technical Writer preferred. Proficiency in Python; familiarity with additional languages (JavaScript, TypeScript, Java, C++, Go, Ruby, Rust, Bash) is a plus. Understanding of Git workflows, testing frameworks, and debugging tools. Exceptional analytical and written communication skills. ...

testing, or software documentation. Background as a Senior or Staff Engineer, QA Engineer, or Technical Writer preferred. Proficiency in Python; familiarity with additional languages (JavaScript, TypeScript, Java, C++, Go, Ruby, Rust, Bash) is a plus. Understanding of Git workflows, testing frameworks, and debugging tools. Exceptional analytical and written communication skills. ...

/CI/CD standards, etc.) Tech Stack & Skills You'll Use Shopify/Shopify Plus Liquid, HTML, CSS/SCSS, JavaScript GraphQL, REST APIs, Shopify Admin API Shopify Functions, UI Extensions Vite.js/Webpack, Shopify CLI Git/GitHub, CI/CD pipelines Performance optimisation (Core Web Vitals, Page ...

/CI/CD standards, etc.) Tech Stack & Skills You'll Use Shopify/Shopify Plus Liquid, HTML, CSS/SCSS, JavaScript GraphQL, REST APIs, Shopify Admin API Shopify Functions, UI Extensions Vite.js/Webpack, Shopify CLI Git/GitHub, CI/CD pipelines Performance optimisation (Core Web Vitals, Page ...

/CI/CD standards, etc.) Tech Stack & Skills You'll Use Shopify/Shopify Plus Liquid, HTML, CSS/SCSS, JavaScript GraphQL, REST APIs, Shopify Admin API Shopify Functions, UI Extensions Vite.js/Webpack, Shopify CLI Git/GitHub, CI/CD pipelines Performance optimisation (Core Web Vitals, Page ...

UK. Some of our environments require security vetting and you should be comfortable undertaking that process. Skills & Requirements Significant C# and web-development experience Javascript/Typescript experience Experience programming using a functional approach (professional or hobby) Desirable Exposure to the LanguageExt library in C# ( Health industry work experience SaaS ...