51 to 75 of 3,896 Permanent ECMAScript Jobs

across both the back and front end. You'll work closely with our Principal Engineer, leading development in Java, Spring Boot, and AWS , while creating intuitive UIs with modern JavaScript frameworks like AngularJS. This is a hands-on technical lead role where you'll guide others in coding best practices, architecture, and performance-helping shape both our platform and our … both a hands on contributor and a technical coach , driving engineering excellence across the full stack. Leadership & Mentorship - Guide and support engineers across the stack, mentoring in Java and JavaScript best practices, code quality, performance, and modern architectural approaches. Full Stack Development - Take ownership of end-to-end feature delivery, building scalable backend services in Java, Spring Boot, and Hibernate … and dynamic front-end interfaces with modern JavaScript frameworks (AngularJS). Code Reviews & Coaching - Conduct detailed code reviews, providing constructive feedback to strengthen quality and maintain consistency across back-end and front-end codebases. Technical & Architectural Leadership - Define and champion engineering best practices, code quality standards, and scalable architecture principles while partnering with the Principal Engineer to evolve secure, maintainable More ❯

Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an exciting opportunity to work on innovative projects, collaborate with a dynamic team, and contribute to the development of cutting-edge technology solutions. Is your … be eligible to go through SC Clearance No Sponsorship will be provided for this role Job Details Required Extensive experience of building microservices with Java (Spring Boot) Experience using JavaScript/Typescript to build fronted web applications using React, HTML and CSS Experience using version control software - Git Experience using online version control tools - GitHub, GitLab etc Experience using Docker More ❯

will see you working across our product suite, contributing to the design, development, and delivery of innovative software. Our tech stack includes C# (.Net Core), MySQL, HTML/CSS, JavaScript, and containerized workloads in AWS. What you’ll do At Optum UK, we believe in the power of technology to make healthcare faster, better, and more accessible. As part of … a team. We’re looking for someone with: Strong proficiency in C#, .Net Core, and MVC. Experience designing and developing RESTful APIs. Solid front-end skills including HTML, CSS, JavaScript, and React. Familiarity with microservices and containerization (Docker, Kubernetes). Experience with AWS and cloud-based deployments. Proficiency with MySQL and writing efficient SQL queries. Understanding of DevOps practices including More ❯

Programming (OOP) Experience in WebAPI and Unit Testing Experience with databases (Relational e.g., SQL, MySQL or SQLite, NoSQL e.g., MongoDB or Cassandra) Working knowledge of Web Development (HTML, CSS & JavaScript) Experience in at least one Agile Framework Experience in code review practices and supporting software in a production environment Experience with tackling performance and scalability issues on large, high-throughput … systems Advantageous: Experience with evolving architectures and cloud-native architecture (Azure, AWS or GCP) Knowledge of GIT usage and pull request etiquette Experience with JavaScript frameworks (e.g., Angular, React, Svelte, Vue, AngularJS, Knockout) Interest in containerisation (Kubernetes/Docker) Experience with continuous integration and continuous deployment (CI/CD) Aptitudes: Self-motivated and perseverant Methodical and disciplined approach to tasks More ❯

continuous integration, and collective code ownership. The role blends technical skill, product thinking, and craftmanship – ideal for someone who enjoys delivering high-quality digital products and working with modern JavaScript ecosystems Responsibilities • Build and maintain user-facing features using React.js and TypeScript • Develop scalable APIs using Node.js (TypeScript), supporting both REST and GraphQL • Integrate with headless CMS platforms such as … a collaborative, inclusive, and high-performing dev culture Skills and Qualifications • 2 years + experience as a Front End or Full Stack Developer • Proficient in React.js, TypeScript, and modern JavaScript (ES6+) • Familiar with Node.js and frameworks like Express or Apollo Server • Experience with REST and GraphQL APIs • Comfortable working with PostgreSQL or similar relational databases • Understanding of responsive design, accessibility More ❯

continuous integration, and collective code ownership. The role blends technical skill, product thinking, and craftmanship – ideal for someone who enjoys delivering high-quality digital products and working with modern JavaScript ecosystems Responsibilities • Build and maintain user-facing features using React.js and TypeScript • Develop scalable APIs using Node.js (TypeScript), supporting both REST and GraphQL • Integrate with headless CMS platforms such as … a collaborative, inclusive, and high-performing dev culture Skills and Qualifications • 2 years + experience as a Front End or Full Stack Developer • Proficient in React.js, TypeScript, and modern JavaScript (ES6+) • Familiar with Node.js and frameworks like Express or Apollo Server • Experience with REST and GraphQL APIs • Comfortable working with PostgreSQL or similar relational databases • Understanding of responsive design, accessibility More ❯

how teams design and deliver software. You’ll bring: Proven experience in C#, .NET Core, and MVC, with a solid grasp of RESTful API design and development. Exposure to JavaScript frameworks such as React or Vue.js, and confident with core front-end skills (HTML, CSS, JavaScript). Experience developing and deploying in the cloud (Azure or AWS), ideally using Infrastructure More ❯

how teams design and deliver software. You’ll bring: Proven experience in C#, .NET Core, and MVC, with a solid grasp of RESTful API design and development. Exposure to JavaScript frameworks such as React or Vue.js, and confident with core front-end skills (HTML, CSS, JavaScript). Experience developing and deploying in the cloud (Azure or AWS), ideally using Infrastructure More ❯

quality, drive innovation, and continually enhance the developer experience. What you’ll do Design, develop, and maintain high-quality applications using a diverse tech stack (.NET, C#, TypeScript/JavaScript, SQL/Postgres, AWS). Lead on technical delivery of new features and greenfield development across our platforms. Engage in Agile planning, estimation, and design discussions to shape solutions and … and business. About you A well-rounded full-stack developer with strong experience across modern web technologies. Proficient in: .NET/C# and Web API SQL & PostgreSQL TypeScript/JavaScript and frameworks (e.g., NestJS , React , Angular ) AWS and cloud-based development environments Familiar with Agile practices and modern DevOps principles. Able to work across modern and legacy codebases (including VB.NET More ❯

well as working to define and create new, exciting products for our clients. You'll be expected to work with a range of technologies including .NET Core, ASP.NET, React, JavaScript, Azure (amongst many others) and have the opportunity to learn new skills and teach your knowledge to others as you progress. Your responsibilities: Build new and existing features for our … not limited to .NET Core, ASP.NET (Core) MVC, LINQ, Entity Framework, Windows Console/Service Applications as well as knowledge and experience of other web languages and technologies including JavaScript, HTML5, CSS, Bootstrap Proven and demonstrable knowledge of SQL and Database Design Thorough understanding of React.js and its core principles Proven experience in designing and consuming Web APIs Ability to More ❯

well as working to define and create new, exciting products for our clients. You'll be expected to work with a range of technologies including .NET Core, ASP.NET, React, JavaScript, Azure (amongst many others) and have the opportunity to learn new skills and teach your knowledge to others as you progress. Your responsibilities: Build new and existing features for our … not limited to .NET Core, ASP.NET (Core) MVC, LINQ, Entity Framework, Windows Console/Service Applications as well as knowledge and experience of other web languages and technologies including JavaScript, HTML5, CSS, Bootstrap Proven and demonstrable knowledge of SQL and Database Design Thorough understanding of React.js and its core principles Proven experience in designing and consuming Web APIs Ability to More ❯

join our team. You will be working on customer-facing web applications and associated backend systems. You will have at good commercial experience of implementing responsive websites using modern JavaScript frameworks/libraries and backend APIs. As a member of our Agile development team, you will be initially focused on backend application development and can extend your experience and skillset … team working skills. Able to communicate effectively using MS Teams or similar. Design, develop, and maintenance of full-stack web applications using C#/.NET Core , ASP.NET MVC , and JavaScript frameworks (e.g., React, Angular). Familiarity with CMS or similar platforms (e.g., Sitecore, Contentstack, Adobe Experience Manager). Understanding of microservices architecture , API gateways , Experience working with cloud platforms (Azure More ❯

internal or customer Application Development Teams. While your focus will be on backend development using Java and Spring, you’ll also contribute to frontend work, ideally with React, or JavaScript/TypeScript. You’ll guide a small team, ensuring quality, consistency, and timely delivery. You’ll be hands-on throughout the full software development lifecycle, designing, coding, testing, resolving defects … What We’re Looking For Technical Skills: Strong experience with Java (1.6/1.8), Spring, REST APIs, and Oracle PL/SQL Solid frontend experience with React (preferred) or JavaScript/TypeScript Knowledge of microservices, Maven, Kubernetes/Docker, and cloud platforms (Azure/AWS) Familiarity with Agile/Scrum methodologies, sprint planning, and rituals Experience with JUnit, Mockito, TDD More ❯

leveraging Microsoft Azure, including Service Bus, Queues, and messaging patterns. Collaborate with Product Owners to translate user stories into functional, performant applications. Develop responsive front-end interfaces using TypeScript, JavaScript, Angular, HTML5, and CSS/SASS. Participate in all Agile ceremonies; sprint planning, refinement, retrospectives and contribute ideas to improve how the team works. Conduct code reviews and apply clean … Core and Framework). Solid understanding of Azure Cloud Services (Service Bus, Queues, Message Broadcasting). Experience building RESTful APIs using ASP.NET Web API. Proficiency with front-end technologies: JavaScript/TypeScript, Angular or AngularJS, HTML5, CSS3/SASS. Familiarity with source control systems (Git/TFVC) and Azure DevOps. Understanding of unit testing frameworks (MSTest, NUnit) and mocking techniques. More ❯

leveraging Microsoft Azure, including Service Bus, Queues, and messaging patterns. Collaborate with Product Owners to translate user stories into functional, performant applications. Develop responsive front-end interfaces using TypeScript, JavaScript, Angular, HTML5, and CSS/SASS. Participate in all Agile ceremonies; sprint planning, refinement, retrospectives and contribute ideas to improve how the team works. Conduct code reviews and apply clean … Core and Framework). Solid understanding of Azure Cloud Services (Service Bus, Queues, Message Broadcasting). Experience building RESTful APIs using ASP.NET Web API. Proficiency with front-end technologies: JavaScript/TypeScript, Angular or AngularJS, HTML5, CSS3/SASS. Familiarity with source control systems (Git/TFVC) and Azure DevOps. Understanding of unit testing frameworks (MSTest, NUnit) and mocking techniques. More ❯

leveraging Microsoft Azure, including Service Bus, Queues, and messaging patterns. Collaborate with Product Owners to translate user stories into functional, performant applications. Develop responsive front-end interfaces using TypeScript, JavaScript, Angular, HTML5, and CSS/SASS. Participate in all Agile ceremonies; sprint planning, refinement, retrospectives and contribute ideas to improve how the team works. Conduct code reviews and apply clean … Core and Framework). Solid understanding of Azure Cloud Services (Service Bus, Queues, Message Broadcasting). Experience building RESTful APIs using ASP.NET Web API. Proficiency with front-end technologies: JavaScript/TypeScript, Angular or AngularJS, HTML5, CSS3/SASS. Familiarity with source control systems (Git/TFVC) and Azure DevOps. Understanding of unit testing frameworks (MSTest, NUnit) and mocking techniques. More ❯

performance, uptime, and code quality Collaborate in cross-functional teams and contribute to design decisions Mentor junior engineers and promote team growth What youll bring Proficiency in C#, .NET, JavaScript, and TypeScript Experience with React, Vue.js, or Angular (preferred) PHP knowledge (desirable) Familiarity with cloud services (AWS, GCP, or Azure), Docker, Kubernetes Understanding of CI/CD, DevOps, SQL/ More ❯

development experience in a SaaS or technology driven environment. Proficiency in backend development with .NET Core and frontend frameworks such as React or Vue. Strong knowledge of HTML, CSS, JavaScript, and SQL databases. Experience with Agile methodologies and software development best practices. Excellent problem solving, analytical, and time management skills. Strong communication skills, capable of collaborating effectively across teams. Experience More ❯

and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket . Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET ). Implement automated testing, code reviews, and quality assurance practices. Lead Agile delivery practices, contributing to sprint planning and retrospectives. Collaborate with architects, developers, and DevOps engineers to More ❯

and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket . Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET ). Implement automated testing, code reviews, and quality assurance practices. Lead Agile delivery practices, contributing to sprint planning and retrospectives. Collaborate with architects, developers, and DevOps engineers to More ❯

and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket . Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET ). Implement automated testing, code reviews, and quality assurance practices. Lead Agile delivery practices, contributing to sprint planning and retrospectives. Collaborate with architects, developers, and DevOps engineers to More ❯

and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket . Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET ). Implement automated testing, code reviews, and quality assurance practices. Lead Agile delivery practices, contributing to sprint planning and retrospectives. Collaborate with architects, developers, and DevOps engineers to More ❯

and maintain CI/CD pipelines using tools such as Jenkins, Bamboo, or Bitbucket . Write clean, maintainable, and efficient code in one or more languages (e.g. Python, Java, JavaScript, or .NET ). Implement automated testing, code reviews, and quality assurance practices. Lead Agile delivery practices, contributing to sprint planning and retrospectives. Collaborate with architects, developers, and DevOps engineers to More ❯

and future centric micro architecture. UI/UX (Angular or equivalent) SCM/DevOps/CI/CD tools & process (GIT/Bitbucket, Maven, Ant, Jenkins, Sonar) Web Technologies (JavaScript, HTML 5, CSS, JSON, REST, SOAP) Testing tools & frameworks (Jasmin/Karma, JUnit, Selenium, Cucumber, Mockito) Experience with Integration patterns and messaging technologies (MQ, Solace, Kafka, RabbitMQ) Extensive experience in More ❯

AzureDevOps. Well versed with programming tools like VS Code or other code editors. Development experience enterprise grade products – scalability, performance, security, testing. Desirable: Python or C# is desirable. Modern JavaScript front-end frameworks such as React, Angular or Vue is useful, though not essential. Terraform templates, swagger. BENEFITS Competitive Salary. Company Laptop supplied. Bonus Scheme. 25 Days Annual Leave (plus More ❯