51 to 75 of 3,750 ECMAScript Jobs

We are seeking a talented and innovative Software Engineer with an Active TS/SCI clearance to join our development team. The ideal candidate will be responsible for designing, developing, testing, and maintaining high-quality software solutions. This role requires More ❯

You'll be working across the full stack Microsoft stack C# .Net Core, ASP.Net MVC, Entity Framework and SQL as well as using a range of web technologies including JavaScript and HTML/CSS. Key Responsibilities: Full Stack Development: Develop, test, and maintain both front-end and back-end components for web and mobile-based applications. Design and implement scalable … and services using ASP.NET Core. Ensure database performance and scalability with SQL Server and/or other database technologies. Implement responsive and user-friendly front-end interfaces using modern JavaScript and styling/CSS frameworks Ensure compatibility across different browsers and devices. Write unit, integration, and end-to-end tests to ensure the reliability and performance of applications. Perform debugging … software development, and proactively suggesting improvements and new tools. Technical Skills: Strong experience with .NET technologies, particularly ASP.NET Core and C#. Proficiency with front-end technologies like HTML5, CSS3, JavaScript, and modern JS frameworks. Experience with relational databases such as SQL Server. Familiarity with cloud platforms (e.g., Azure, AWS) and DevOps practices. Experience with version control systems (e.g., Git). More ❯

month contract Based in Stevenage Offering up to £67ph Inside IR35 Do you have experience as a Full Stack Developer? Do you have experience with programming languages such as JavaScript? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Full Stack Software … the Web UI components Maintenance and testing of .net microservices Creating the appropriate documentation Collaborating with and assisting other members of the team Your skillset may include: Programming Languages - JavaScript, Typescript, HTML, CSS, C# Framework & Libraries - Svelte, Angular, Vue.js, React, .NET 7/8 Tools and Technologies - Visual Studio, Jira, GitLab, Node.js, npm CI, Docker, Kubernetes, Artifactory Experience working on More ❯

bonus (9%) You will be eligible to participate in the company's share options scheme What You'll Be Doing Designing and building complex front-end features using modern JavaScript frameworks. Collaborating with UX/UI designers and stakeholders to deliver seamless user experiences. Ensuring performance, accessibility, and cross-browser compatibility. Influencing architecture and contributing to product design discussions. Promoting … best practices through code reviews and mentorship. Staying up to date with emerging technologies and tools. What We're Looking For Expert-level JavaScript/TypeScript with deep experience in React, Vue, or Angular. Strong grasp of HTML5, CSS3, browser APIs, and responsive design principles. Proven experience in integrating front-end applications with RESTful APIs. Understanding of web security and More ❯

to Work or have the ability to work without sponsorship. The successful Senior Software Developer will possess proven skills in: C# and .NET (Core/Framework) Angular (or modern JavaScript front-end frameworks) SQL Server and Entity Framework Docker & AWS ECS Architecture & Design Event-driven architecture (e.g. RabbitMQ) RESTful APIs and microservices DevOps, Git, CI/CD pipelines Interested? Please More ❯

to Work or have the ability to work without sponsorship. The successful Senior Software Developer will possess proven skills in: C# and .NET (Core/Framework) Angular (or modern JavaScript front-end frameworks) SQL Server and Entity Framework Docker & AWS ECS Architecture & Design Event-driven architecture (e.g. RabbitMQ) RESTful APIs and microservices DevOps, Git, CI/CD pipelines Interested? Please More ❯

to Work or have the ability to work without sponsorship. The successful Senior Software Developer will possess proven skills in: C# and .NET (Core/Framework) Angular (or modern JavaScript front-end frameworks) SQL Server and Entity Framework Docker & AWS ECS Architecture & Design Event-driven architecture (e.g. RabbitMQ) RESTful APIs and microservices DevOps, Git, CI/CD pipelines Interested? Please More ❯

strength and passion for building front-end using React. Experience required: 6+ years of commercial development experience Deep expertise in React.js for high-performance web applications Solid grounding in JavaScript (ES6+), TypeScript, HTML5, CSS3, and modern UI architectures (Redux, Context API) Strong server-side skills ideally in Java and/or Python Experience with SQL and working with relational databases More ❯

with CI/CD pipelines within Azure DevOps. • Design and implement secure RESTful APIs. Skills, Knowledge and Expertise Advanced knowledge of the following technologies: Front-end Tech: HTML, CSS, JavaScript, TypeScript, AngularJS & Angular, NodeJS. Back-end Tech: C#, ASP .NET/.NET Framework/.NET Core, WebAPI/REST API, Nunit, Moq, SQL Server, Entity Framework, MS Azure (App Services More ❯

clean, scalable, and secure code that makes a real impact. Key Requirements: Strong experience developing microservices with Java and the Spring Boot framework Proficiency in front-end development using JavaScript or TypeScript with React, HTML, and CSS Experience with Docker and Docker Compose Familiarity with CI/CD tools such as GitHub Actions, GitLab CI, or Jenkins Experience with cloud More ❯

to day operation of systems, including availability, security and data integrity Collaborate daily with product, data and DevOps teams in short agile sprints. Skills & Experience Production experience with Vue.js, JavaScript/TypeScript, HTML and CSS. Proficiency in at least one back?end language (Python, Java, C#, Node). Strong SQL and familiarity with relational & NoSQL databases. Experience designing and consuming More ❯

Git, CI/CD tools, and database technologies (SQL/NoSQL) Excellent problem-solving and communication skills Secure coding and API architecture knowledge Desirable: Web development experience (React, TypeScript, JavaScript) Familiarity with AWS, containerisation, microservices, and serverless architecture Exposure to infrastructure as code (Terraform, CloudFormation) Benefits A highly competitive salary package Annual bonus and performance incentives Generous pension and private More ❯

to day operation of systems, including availability, security and data integrity Collaborate daily with product, data and DevOps teams in short agile sprints. Skills & Experience Production experience with Vue.js, JavaScript/TypeScript, HTML and CSS. Proficiency in at least one back end language (Python, Java, C#, Node). Strong SQL and familiarity with relational & NoSQL databases. Experience designing and consuming More ❯

complexity (whenever feasible), as appropriate. You will work with the following tech stack; Angular, Spring Boot, Flutter, Kubernetes, Gradle, iOS & Android (Native), Firebase and the following languages; Dart, Java, JavaScript/TypeScript, Swift, Postgres SQL, Groovy, HTML/CSS, Tool Command Language (TCL). Roles and Responsibilities Design, develop, and maintain responsive web and mobile applications Collaborate with cross-functional More ❯

RESTful API design and consumption. Collaborate on version control practices using Git, documentation, and code reviews. Desired Skills: Passion for software development and continuous learning. Some frontend experience with JavaScript/TypeScript and frameworks like React.js. Basic backend experience with Python or Node.js. Understanding of databases (relational and NoSQL). Familiarity with cloud platforms (AWS/Azure) is a plus. More ❯

RESTful API design and consumption. Collaborate on version control practices using Git, documentation, and code reviews. Desired Skills: Passion for software development and continuous learning. Some frontend experience with JavaScript/TypeScript and frameworks like React.js. Basic backend experience with Python or Node.js. Understanding of databases (relational and NoSQL). Familiarity with cloud platforms (AWS/Azure) is a plus. More ❯

cutting-edge technology. This is a unique opportunity to become a key member of a forward-thinking, technology-focused organization. The successful candidate will work with technologies such as JavaScript (Angular/Node), .Net Core/.NET 5 +, AWS, IaC, Docker, Fargate, and Kubernetes. You will also play a significant role in shaping the future of our Tech and More ❯

development of the Web UI components Maintenance and testing of .net microservices Creating the appropriate documentation Collaborating with and assisting other members of the team Essential experience: Programming Languages:- JavaScript, Typescript, HTML, CSS, C# Framework & Libraries:- Svelte, Angular, Vue.js, React, .NET 7/8 Tools and Technologies Visual Studio, Jira, GitLab, Node.js, npm CI, Docker, Kubernetes, Artifactory You have experience More ❯

development. Proven full-stack engineering experience with emphasis on backend systems Proficient in C# .NET/.NET Core and modern front-end frameworks (Angular 17+) Strong knowledge of TypeScript, JavaScript, HTML5, and CSS3 Experience working with RESTful APIs and microservices architecture Familiar with version control (Git), agile methodologies, and containerization (Docker a plus) Desirable Experience with additional front-end frameworks More ❯

such as evening or weekends. Qualifications: - Understanding of cloud architectures and enabling tools and technologies, such as, AWS Cloud (GovCloud/C2S) - Familiar with Amazon Web Managed Services (AWS) - JavaScript, Angular, Typescript, Node.js, MongoDB, JSON, SQL, XML - High experience level with back-end programming languages (Java/Spring, Python) - Working knowledge with datastores MongoDB, DynamoDB, PostgreSQL, S3, Redshift, Redis, and More ❯

or weekends. Skills: Understanding of cloud architectures and enabling tools and technologies, such as, AWS Cloud (GovCloud/C2S) Familiar with Amazon Web Managed Services (AWS) Proficient experience utilizing JavaScript, Angular, Typescript, Node.js, MongoDB, JSON, SQL, XML High experience level with back-end programming languages (Java/Spring, Python) Working knowledge with datastores MongoDB, DynamoDB, PostgreSQL, S3, Redshift, Redis, and More ❯

total, relevant professional experience may be substituted in lieu of a degree. • 2-4 years of hands-on full-stack development experience. • Proficiency in: o Front-End: HTML, CSS, JavaScript, and a modern framework such as React or Angular o Back-End: Python and Node.js (highly preferred) o Databases: Experience with at least one of the following: SQL Server, MySQL More ❯

and an ability to deliver innovative solutions that align with business objectives. Experience Requirements Software Development & Principles Programming Languages: Proficiency in one or more of: Java, Spring Boot, Python, JavaScript, TypeScript, ReactJS SOLID Principles: Familiarity with object-oriented and clean coding practices Testing & BDD Unit Testing Frameworks: Experience with Cypress, Cucumber, Behave, Selenium, or similar tools Domain-Specific Languages: Knowledge More ❯

/proof of concept as necessary to mitigate risk or implement new ideas Required Qualifications: 3+ years of experience as Java Developer focused on Spring MVC Framework. 3+ of JavaScript Framework coding and webapp integration 2+ years basic/working Knowledge of Linux environments. 2+ years working Knowledge of Source Control Management (SCM), Rapid Development cycles and automated deployment services More ❯

of the following specific technologies: OData, REST, SOAP, FTP/SFTP, JDBC, CSV, XML, JSON, XSL, encryption standards such as PGP, x509. Minimum 5 years of experience working on JavaScript, CSS3 and HTML5 and third-party libraries such as React Js, Angular, jQuery Minimum 5 years of experience working server-side programming languages such as Net, Java, Ruby and Python More ❯