876 to 900 of 2,768 ECMAScript Jobs

Requirements 3–4 years of front-end testing experience, preferably in finance or trading systems Hands-on experience with Playwright and TypeScript Strong understanding of web technologies (HTML, CSS, JavaScript) Excellent analytical, problem-solving, and communication skills Experience in Agile/Lean development environments is a plus This is an excellent opportunity to work with cutting-edge trading technology in More ❯

cloud platform used by AI researchers and engineers worldwide. This role would suit an experienced engineer with a track record of designing and building greenfield systems. Skills: Python, Go, JavaScript GCP, AWS, Azure Kubernetes, Docker, Terraform The money is good too – up to £120k plus benefits including remote working and share options. If you're interested and would like to More ❯

in driving quality across the SDLC, leveraging cutting-edge tools and frameworks to ensure robust, scalable, and reliable software delivery. Key Requirements (Must-Have): Advanced proficiency in C# , Python , JavaScript/TypeScript , and SQL Extensive hands-on experience with test automation frameworks such as Playwright , SpecFlow , or similar Deep understanding of Agile methodologies and Test-Driven Development (TDD) Strong data More ❯

Developer will enjoy hybrid working on a 3+2 basis. The Lead Developer will write efficient and scalable code. The Lead Developer will be experienced with PHP (Laravel/Lumen), Javascript and Typescript. The Lead Developer will be familiar with React and Python. The Lead Developer will enjoy interrogating databases (MySQL). The Lead Developer will ensure robust AWS integrations and More ❯

Developer will enjoy hybrid working on a 3+2 basis. The Lead Developer will write efficient and scalable code. The Lead Developer will be experienced with PHP (Laravel/Lumen), Javascript and Typescript. The Lead Developer will be familiar with React and Python. The Lead Developer will enjoy interrogating databases (MySQL). The Lead Developer will ensure robust AWS integrations and More ❯

complex systems. A genuine curiosity for technology and a broad interest in software projects. Solid grasp of the full software development lifecycle, including Agile and DevOps methodologies. Skills: C#.NET , JavaScript Azure Experience in a client-facing role is a plus. Benefits: Competitive salary and benefits package. Opportunities for career growth and continuous learning. A collaborative, forward-thinking environment. Work with More ❯

Collaborate with UI/UX, backend, and DevOps teams. Maintain documentation and coding standards, leveraging AI tools for rapid UI prototyping. Core Technical & AI/ML Skills: Expert in JavaScript/TypeScript, React (Hooks, Context, Redux). Modern front-end tooling (Webpack, Babel, Vite). API integration, state management, and testing (Jest, React Testing Library), including AIaugmented testing platforms. Web More ❯

Software Engineer | Swansea/Hybrid | £30,000 - £35,000 | C# | .Net | JavaScript | Azure | SQL | Looking to join a company that gives you autonomy? Looking to work somewhere which offers brilliant training and progression? I’m supporting a brilliant company based in Swansea that harness technology to ensure companies all over the world who work in dangerous environments safe. They’re More ❯

feel fast, intuitive, and professional Cloud infrastructure capable of supporting rapid expansion AI-driven features leveraging leading LLM platforms to transform user outcomes Core skills PHP Laravel expertise Modern JavaScript frontend development (Next.js and React) Strong relational database experience Cloud deployment and operations (AWS preferred) Familiarity with LLM ecosystems such as OpenAI, Anthropic, or Mistral A single individual with the More ❯

and Kubernetes (ECS/EKS). Continuous Integration/Delivery: Skilled in managing CI/CD pipelines using Jenkins and GitHub Actions. Programming: Working knowledge of Go, Python, and JavaScript for automation and tooling. Responsibilities: Lead the development and operational support of secure, scalable web services. Champion automation across deployment, configuration, and monitoring processes. Govern and optimise multi-environment infrastructure More ❯

pages Support in the rewriting of back-end systems Requirements of the Software Developer C++, based on the Isle of Wight: Experienced in the following front-end languages: . JavaScript, HTML, CSS, JSON, React.Js Experienced in designing and implement using REST APIs and GraphQL Proficient in using Selenium, AWS and Azure Skilled in Linux Back-end experience in the following More ❯

pages Support in the rewriting of back-end systems Requirements of the Software Developer C++, based on the Isle of Wight: Experienced in the following front-end languages: . JavaScript, HTML, CSS, JSON, React.Js Experienced in designing and implement using REST APIs and GraphQL Proficient in using Selenium, AWS and Azure Skilled in Linux Back-end experience in the following More ❯

leading and mentoring QA automation teams. Hands on expertise in automation tools such as Selenium, Cucumber, Karate,Cypress JUnit, or similar. Strong programming skills in languages like Java, Python, JavaScript, or C Experience with API testing tools like Postman, RestAssured, or SoapUI. Experience in Agile methodologies (Scrum, Kanban Hands-on experience with version control systems (Git, SVN Proficiency in integrating More ❯

a timely manner. Stay updated on the latest trends and updates within the Magento ecosystem. Profile Must haves: Magento 2 Adobe Commerce Cloud PHP/HTML/CSS/JavaScript API development & integration Strong communication skills Nice to haves: Agency experience Shopify React AWS Job Offer Fully remote Bi-annual pay reviews Full set up to work from home EAP More ❯

working with modern technologies and contributing to a product with real impact. Tech Stack: We’re looking for experience in as many of the following as possible: C#.NET React JavaScript/TypeScript Razor Pages Web APIs Microservices Architecture Azure What’s on offer: Salary: Up to £65,000 + bonus Location: Hybrid – 3 days onsite in Castleford (free parking More ❯

implement software design patterns and best practices. Support integration with cloud infrastructure and tools, primarily AWS and Terraform . Technical Skills & Experience ✅ Essential: Expert-level proficiency in Node.js and JavaScript/TypeScript development. Strong understanding of software design patterns and scalable architecture principles. Proven experience building and maintaining RESTful APIs and microservices . Solid experience with MongoDB and other NoSQL More ❯

implement software design patterns and best practices. Support integration with cloud infrastructure and tools, primarily AWS and Terraform . Technical Skills & Experience ✅ Essential: Expert-level proficiency in Node.js and JavaScript/TypeScript development. Strong understanding of software design patterns and scalable architecture principles. Proven experience building and maintaining RESTful APIs and microservices . Solid experience with MongoDB and other NoSQL More ❯

equivalent qualification/knowledge gained through experience. Knowledge of Software Developing Tools and Concepts at Level 3 and 4. Knowledge and application of the programme languages C#, HTML5, CSS3, JavaScript, SQL, Python, Java, PHP, Mobile app design & Development. Creativity and flexibility to develop and enhance teaching materials in order to engage learners and respond to learner interests. This is an More ❯

custom connectors. Understanding of role-based security, environment management, and DLP policies. Excellent communication and problem-solving skills. Preferred Qualifications Experience with Power BI and embedding dashboards. Knowledge of JavaScript, Azure Functions, or Logic Apps. Exposure to Agile/Scrum methodologies. Experience in enterprise-level application development and deployment. More ❯

pivotal role in influencing the product’s direction and long-term success. What You Bring Deep understanding of modern web applications and scalable architecture. Hands-on experience with Python, JavaScript/TypeScript, and cloud (AWS/GCP). Strong focus on code quality, testing, and observability. A passion for learning, problem-solving, and building products that make a difference. Why More ❯

detail. Competent with Windows and Linux operating systems. Excellent written, verbal, and presentation skills. Desirable Skills: Familiarity with distributed simulation standards (DIS, HLA, DDS). Experience developing web services (JavaScript, Node.js or similar). Knowledge of military communication protocols (1553/1760, Ethernet TCP/IP). Understanding of system integration principles and processes. More ❯

detail. Competent with Windows and Linux operating systems. Excellent written, verbal, and presentation skills. Desirable Skills: Familiarity with distributed simulation standards (DIS, HLA, DDS). Experience developing web services (JavaScript, Node.js or similar). Knowledge of military communication protocols (1553/1760, Ethernet TCP/IP). Understanding of system integration principles and processes. More ❯

cloud platform used by AI researchers and engineers worldwide. This role would suit an experienced engineer with a track record of designing and building greenfield systems. Skills: Python, Go, JavaScript GCP, AWS, Azure Kubernetes, Docker, Terraform The money is good too – up to £120k plus benefits including remote working and share options. If you're interested and would like to More ❯

who thrives in a fast-paced environment and has a passion for delivering digital excellence. Key skills and experience: WordPress theme and template development React/NextJS and modern JavaScript/TypeScript Strong knowledge of HTML, CSS, and responsive design Familiarity with Git and modern build tools (e.g. Sass, Webpack, Tailwind) An understanding of SEO principles and best practices The More ❯

PE/VC environments. Tech decisions are pragmatic, and the focus is on real product impact over chasing buzzwords Tech environment: .NET, C#, GCP, MongoDB, SQL Server Vue.js, TypeScript, JavaScript (but this role leans backend) Modern CI/CD, APIs, and cloud-native mindset What you’ll bring: Solid .NET engineering experience, ideally with experience building robust APIs A product More ❯