1 to 25 of 62 Permanent JavaScript Jobs in Northern Ireland

Backend Software Engineer. Strong TypeScript development experience within a professional engineering environment. Proficient in React, Redux and React Query, alongside HTML5, CSS3 and modern JavaScript frameworks. Experience developing backend services and APIs using TypeScript or another object-oriented language. Strong knowledge of REST APIs, GraphQL, WebSockets and microservices architecture. Commercial ...

professional environment.* Front-end skills + Proficient in HTML5, CSS3, and Typescript + Proficient in React, Redux, ReactQuery + Experience with modern JavaScript frameworks - React + Knowledge of version control systems (Git) + Understanding of cross-browser compatibility + Familiarity with RESTful APIs, GraphQL and Websockets + Experience with ...

Engineer in Typescript in a professional environment. Front-end skills Proficient in HTML5, CSS3, and Typescript Proficient in React, Redux, ReactQuery Experience with modern JavaScript frameworks - React Knowledge of version control systems (Git) Understanding of cross-browser compatibility Familiarity with RESTful APIs, GraphQL and Websockets Experience with CSS pre-processors ...

internships, placements, graduate roles, bootcamps, or personal projects) Understanding of software engineering principles and development methodologies Experience or academic exposure to: HTML, CSS and JavaScript React or similar frontend frameworks Python development REST APIs SQL and relational databases Git and version control Strong analytical and problem‐solving skills Excellent communication ...

contributing to engineering best practices. Essential Skills & Experience Active SC Clearance Strong software development experience in one or more of: Java C# Python JavaScript/TypeScript Understanding of: Object-Oriented Programming SOLID Principles Design Patterns Refactoring Code Reviews Experience developing: Automation Frameworks Engineering Tools APIs Web Applications Distributed Systems Experience ...

background should ideally include: Hands-on experience with a UI automation framework such as Playwright, Cypress or Selenium. Coding or scripting experience using TypeScript, JavaScript, Java or a similar language. An understanding of REST API testing and validation. Experience managing test cases and defects through tools such as Jira ...

Quality Engineering, Test Automation Development, or Software Testing. 2+ years building and maintaining automated test frameworks from the ground up using C#, Python, Java, JavaScript, or TypeScript with tools such as Selenium WebDriver, Cypress, Playwright, XCUITest, Espresso and Appium. Strong experience with API testing tools and frameworks (Postman, REST Assured ...

scripting languages; Python, GO, PowerShell, Bash, Groovy* Programming language with a working knowledge in at least one of Java, C# (.NET Framework/Core), JavaScript (Node.js), Ruby, C++* Developer tooling; Full stack CI/CD, GitLab, Jenkins, SonarQubeNexus* Knowledge and working experience of containerising application components including writing DockerFiles ...

scripting languages; Python, GO, PowerShell, Bash, Groovy Programming language with a working knowledge in at least one of Java, C# (.NET Framework/Core), JavaScript (Node.js), Ruby, C++ Developer tooling; Full stack CI/CD, GitLab, Jenkins, SonarQubeNexus Knowledge and working experience of containerising application components including writing DockerFiles ...

scalability, high availability, and performance. A minimum of 4 years software engineering experience in at least 3 programming paradigms to include: - Object-oriented (Java & JavaScript wit at least one other language) - Procedural/systems (e.g. Go, Rust, C) - Functional (e.g. F#, Elixir, Clojure, Haskell) Experience using modern development tools (e.g. ...

stakeholders. Key Requirements: 4+ years experience in a full stack or front end/back end software engineering role with Typescript Experience with modern JavaScript frameworks such as React Solid backend development experience (Node.js) Experience with AWS (Lambda, API Gateway, AppSync, Fargate) Microservices, event-driven architecture & messaging systems Strong database ...

designing or integrating Azure cloud services (e.g., Azure Functions, Logic Apps, Service Bus, API Management). Solid understanding of C# & .NET, Dataverse plugin development, JavaScript form customisation, and REST APIs. Experience working in Agile/sprint-based delivery. Strong communication and stakeholder engagement skills. Advantageous (nice-to-have, not required ...

manual testing and automation experience. You should also bring: Experience with Playwright, Cypress, Selenium or similar automation frameworks. Programming or scripting ability in Java, JavaScript, TypeScript or a comparable language. Practical knowledge of API testing. Familiarity with Jira and test management tools such as Zephyr. Experience with Git, CI/ ...

ability to work effectively within an agile development team. Experience within financial services or electronic trading would be advantageous. Familiarity with HTML, CSS, JavaScript/TypeScript and Angular would be desirable. #J-18808-Ljbffr ...

ability to work with evolving requirements Good communication skills and experience working in cross-functional teams Nice to Have Experience with TypeScript or JavaScript Experience contributing to frontend applications (React) Familiarity with observability tooling (logging, monitoring, tracing) Experience with data modelling and metadata management Exposure to CI/CD practices ...

Essential* Extensive experience in QA automation within Agile environments.* Strong automation experience using tools such as Selenium, Cypress, Playwright, or TestComplete.* Proficiency in Java, JavaScript, or similar programming/scripting languages.* Proven ability to design and maintain scalable automation frameworks (Playwright/WebDriverIO preferred).* Experience integrating automation within ...

demonstrated ownership of production systems throughout the full software development lifecycle which must include proficiency in one or more modern programming languages (e.g., Java, JavaScript) .* Hands on experience designing, building, and operating scalable distributed systems and cloud‐based applications, including microservices architectures* Demonstrated ability to design, develop, and integrate ...

2.0, OpenID Connect, and SAML Experience supporting Security Operations, Incident Response, SOC, or breach modeling activities Strong software engineering background with experience in Java, JavaScript, Python, Go, Rust, or other modern programming languages Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger ...

technical stakeholders. A proactive attitude with a genuine interest in developing your technical skills and knowledge. Desirable: Exposure to C#/.NET, JavaScript, Python or similar programming languages. Familiarity with SQL Server, APIs and software integrations. Knowledge of Git, Azure, Power BI or Microsoft Power Platform. Previous placement, internship ...

continuous improvement. What You'll Need Strong object-oriented programming skills using PHP, Java, C#/.NET or a similar technology. Experience with modern JavaScript or TypeScript development. Exposure to a frontend framework such as React or Vue would be advantageous. Experience using Git and working within an Agile environment. ...

2.0, OpenID Connect, and SAML. Experience supporting Security Operations, Incident Response, SOC, or breach modeling activities. Strong software engineering background with experience in Java, JavaScript, Python, Go, Rust, or other modern programming languages. Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger. ...

demonstrated ownership of production systems throughout the full software development lifecycle which must include proficiency in one or more modern programming languages (e.g., Java, JavaScript) . Hands on experience designing, building, and operating scalable distributed systems and cloud‐based applications, including microservices architectures Demonstrated ability to design, develop, and integrate ...

from solution design and implementation through to testing, deployment and ongoing optimisation. You will ideally have experience in several of the following areas: Strong JavaScript and React development experience Experience with React Native or native mobile application development Backend development and API integration Cloud infrastructure, ideally within AWS An interest ...

would be beneficial. Applications are also welcome from graduates already in their first role who are looking for a new opportunity. Exposure to modern JavaScript frameworks, Azure, Git or AI coding tools would be useful. You do not need experience in every area to be considered. What's on Offer ...

their growth This role will be a great fit if you: 3+ years experience as a Software Engineer Proficiency working with TypeScript/JavaScript backend frameworks (Express, NestJS or similar) Comfortable writing backend code to be performant and efficient Experience building RESTful application interfaces and designing APIs Experience working ...