1 to 25 of 28 Permanent JavaScript Jobs in Northern Ireland

practices into development. Experience/Competences Essential Extensive commercial experience in full-stack development within enterprise environments. Proficiency in front-end technologies: HTML5, CSS3, JavaScript/TypeScript, React (or similar frameworks). Strong back-end experience, particularly with modern C# and ASP.NET. Solid understanding of RESTful APIs, GraphQL, and WebSockets. ...

Strong commercial experience as a Full Stack, Front-End or Back-End Software Engineer within an enterprise environment. Experience with TypeScript and/or JavaScript and modern front-end frameworks, particularly React. Strong backend development experience with C#/.NET, ASP.NET, Java or another object-oriented language. Experience developing RESTful ...

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 ...

trading or other regulated environments. Knowledge of FIX protocol and FIX message handling. Experience with AWS services, serverless architecture and microservices. Familiarity with Java, JavaScript and/or React. Understanding of TDD, BDD or similar testing methodologies. Experience working with high-volume, highly available or low-latency systems. For further ...

full stack experience in enterprise environments, strongest on the backend Strong modern C# and ASP.NET, including Entity Framework Working React with HTML5, CSS3 and JavaScript or TypeScript RESTful APIs, GraphQL and WebSockets AWS, Docker and Kubernetes CI and CD, automated testing and strong relational database skills, such as PostgreSQL ...

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 ...

D365 CE/Power Platform) and associated ALM strategies Demonstrated experience of delivering Dynamics migrations and upgrades Clear knowledge of the Microsoft stack (.NET, JavaScript, ASP.NET, MVC, C# .Net for Plugins and custom workflows, Integrations using .NET) Experience with Dynamics 365 workflows (internal and Power Automate) Strong understanding of Microsoft ...

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 APIs ...

their practical adoption where valuable. Skills & Experience 5+ years of experience in front-end development, with a strong focus on React. Solid understanding of JavaScript (ES6+), TypeScript, HTML5, and CSS3/SASS. Experience integrating with RESTful APIs and working within modern CI/CD pipelines. Strong appreciation for responsive design ...

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. For further information on this job, or any other Software Development jobs in Belfast or Northern Ireland, apply ...

experience, with level determined by technical depth and scope of ownership. You'll ideally bring experience across some of the following: React.js, TypeScript or JavaScript Python or comparable modern backend technologies RESTful or GraphQL API development PostgreSQL and database design Cloud-native development, ideally AWS AWS Lambda, S3, CloudFront ...

ranging from mid-level to senior engineers Strong hands-on development skills across frontend and/or backend technologies Experience with React, TypeScript/JavaScript and/or Python Understanding of APIs, databases, system design and software architecture Experience using AI-assisted coding tools such as Claude Code or GitHub ...

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 ...

deliver user-focused features Continuously improve performance, reliability, and security across the platform Tech Environment Backend: Node.js (Express or similar) Frontend: React (modern JavaScript/TypeScript) Cloud: AWS (e.g., Lambda, EC2, S3, RDS) CI/CD & Version Control: Git-based workflows and automated pipelines What We're Looking ...

enterprise scale with direct hands-on involvement Strong proficiency in at least one modern programming language used in AI delivery - Python, TypeScript/JavaScript, Java or similar Advanced knowledge of cloud platforms including AWS, Azure and/or GCP, APIs, integration patterns and automation Strong practical knowledge of AI, machine ...

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 interest in continuously improving cloud security controls through learning, experimentation, and collaboration. Proficiency in one or more modern programming languages (e.g., Python, Java, JavaScript), with the ability to write, review, and maintain production-quality code. Supervisory Responsibilities This job does not have supervisory duties. Posting Closing date ...

right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript, Java, .Net Cloud platforms: AWS, GCP, Azure Other technologies: CI/CD, TDD What you can expect Work to agile best practices and cross-functionally with ...

monitoring, troubleshooting and performance. Requirements WHAT WERE LOOKING FOR (Experience) Technical leadership on complex, multi-language software projects. Strong backend engineering in TypeScript/JavaScript plus at least one other language such as Python or Rust. Frontend development with a modern framework such as React. CI/CD, containers ...

tools to investigate complex datasets and turn insights into actionable business outcomes. Lead the development of HTML dashboards and analytical applications , using HTML, CSS, JavaScript and relevant visualisation tools. Identify and develop practical opportunities for AI, Copilot, AI agents and automation across reporting and business processes. Coordinate BI analysts, developers ...

Fabric . Practical experience using AI, generative AI, Copilot or AI agents to support analytics, reporting or business processes. Desirable Experience HTML, CSS and JavaScript or experience building web-based dashboards. Experience with Python, notebooks or other analytical tools. Experience with forecasting, predictive analytics or machine learning. Experience with data ...

development tool Understanding of areas such as LLM APIs, orchestration, agents, RAG, guardrails and observability AWS experience, ideally including exposure to Amazon Bedrock JavaScript/TypeScript and modern web engineering experience Experience with Node.js, React, Next.js or comparable technologies Strong understanding of software architecture and engineering best practice Experience mentoring ...

coding throughout A proven track record of building and shipping production software, not only designing or overseeing it Strong proficiency in Python, TypeScript/JavaScript or Java, and the flexibility to work across stacks Working knowledge of AI, machine learning, LLMs and agentic AI, applied in practice Experience with ...

robust technical solutions Contribute to CI/CD pipelines and deployment strategies in a cloud environment Required Experience Strong experience with React and modern JavaScript/TypeScript ecosystems Proven experience in a Lead or Senior Front End role with ownership of systems Experience designing and building scalable frontend architectures Solid ...

across design, delivery, and production support Clear communicator who can drive alignment across engineering, product, and platform teams Nice to Have: Experience with modern JavaScript frameworks, React preferred Exposure to data-heavy systems or analytics platforms AWS or cloud-native environment experience and familiarity with DevOps, CI/ ...