26 to 50 of 53 JavaScript Jobs in Belfast

engineers on your team supporting them in their growth Requirements Must Haves 5+ years experience as a Software Engineer Proficiency working with TypeScript/JavaScript backend frameworks (Express, NextJS or similar) Comfortable writing backend code to be performant and efficient Experience building RESTful application interfaces and designing APIs Experience working ...

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 ...

critical systems. The ideal candidate will have deep experience in Python development , support and incident management , modern delivery methodologies , cloud platforms , and front-end JavaScript technologies . Key Responsibilities Production Support & Operations Provide L2/L3 support for Python-based applications in production environments Monitor system performance, troubleshoot incidents … code (e.g., Terraform, ARM, CloudFormation) Ensure security, scalability, and resilience of cloud-based systems Front-End Development Develop or support UI components using modern JavaScript frameworks (e.g., React and Angular) Collaborate with UX/UI teams to improve user experience Ensure seamless integration between front-end and back-end systems ...

exposure to platforms used by millions of people daily. We value problem-solving ability and strong communication, with opportunities to work on technologies like JavaScript (Angular/Node), .NET Core, AWS, Docker and Kubernetes in a hybrid model with three #J-18808-Ljbffr ...

developer. Strong professional experience with C#. Experience contributing to or supporting a mobile application built with React Native. Experience with modern web development, including JavaScript and CSS. A track record of designing and building maintainable software in a team environment. Experience working with complex or long lived codebases. Confidence contributing ...

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: Monday ...

Group is partnering with a technology organisation to recruit a Frontend-Focused Full Stack Engineer in Belfast. The role emphasises frontend development with React, JavaScript, HTML5 and CSS, while applying C#/.NET skills to backend APIs as needed. You will maintain and enhance customer-facing web apps across ...

Best suited to a mid-senior developer, 4+ years development experience. Strong React Native experience, proven ability building enterprise applications using React Native Excellent JavaScript/TypeScript skills Experience developing and releasing applications for both iOS and Android Strong understanding of mobile application architecture, performance and security Experience working with ...

apply them to solve business problems. Strong teamwork and collaboration skills. A proactive and self-starting approach. Nice To Have Experience with C#, JavaScript or similar technologies. Experience with Microsoft Azure or Microsoft 365. Experience implementing SaaS or cloud-based products. Familiarity with AI, LLMs, agents or Copilot technologies. Experience ...

apply them to solve business problems. Strong teamwork and collaboration skills. A proactive and self-starting approach. Nice to have: Experience with C#, JavaScript or similar technologies. Experience with Microsoft Azure or Microsoft 365. Experience implementing SaaS or cloud-based products. Familiarity with AI, LLMs, agents or Copilot technologies. Experience ...

create and evolve financial software platforms. You will work on full-stack development, applying Spring Boot/Spring Core, Flask/FastAPI, and modern JavaScript frameworks to deliver scalable cloud-native applications. You will collaborate with cross-functional teams, mentor junior engineers, and ensure robust coding practices while embracing GenAI ...

strong software engineering, data engineering, or related technical background, with core proficiency in Python and SQL. (Familiarity with other languages like Java or JavaScript is a bonus, but not essential). Pipeline Expertise: Experience designing and building data pipelines, ETL processes, and data integration solutions. Cloud Platforms: Experience with cloud ...

fast-paced scale‐up environment, shaping the future of on‐chain infrastructure in digital capital markets. You'll work with TypeScript/JavaScript backends, build robust RESTful APIs, and collaborate across engineering, product, and leadership to deliver impactful features with strong testing and CI/CD practices. #J-18808-Ljbffr ...

shape the user experience for enterprise-grade AI security agents and collaborate across product, design, and backend teams. This high-ownership role demands deep JavaScript/TypeScript skills, React expertise, and experience with large-scale systems, cloud-native development, and on-call rotations. #J-18808-Ljbffr ...

tokenization. You will design, build, and maintain high-performing software solutions while mentoring others. The role requires 3+ years of experience with TypeScript/JavaScript and collaboration within development teams. This position offers competitive salaries, stock options, and a supportive work environment to foster personal and professional growth. ...

including SQL and stored procedures. Ability to troubleshoot and investigate technical issues, with experience in precise and detailed technical communication. Experience in EJS(Embedded JavaScript templates) will be preferred. CLP – C Certified Professional Programmer Certification preferred. Circumstances Working hours: Monday to Friday, 37.5 hours per week with additional hours ...

.NET developer who has a strong interest in modern web development and wants to spend a significant proportion of their time working with React, JavaScript, HTML and CSS , while continuing to contribute across the backend. The Role As a Frontend-Focused Full Stack Engineer , you'll work as part … enhancing a portfolio of customer-facing web applications. The role has a strong emphasis on frontend development and user experience , with React and modern JavaScript technologies forming an increasingly important part of the technology stack. You'll also use your C#/.NET experience to develop APIs, backend functionality ...

maintaining complex software features, fostering collaboration with QA teams, and mentoring junior developers. The ideal candidate will have solid commercial experience, especially with C#, JavaScript, and mobile applications using React Native. Join a dedicated team making a notable impact in health and care technology. #J-18808-Ljbffr ...

concepts and train others effectively Nice to Have Experience working in a SaaS or high‐growth environment Experience with Salesforce Basic coding ability (Python, JavaScript or similar) What We're Looking For Builder mindset – someone who ships, not just plans High ownership and accountability Comfortable working in a fast‐moving ...

concepts and train others effectively Nice to Have Experience working in a SaaS or high‐growth environment Experience with Salesforce Basic coding ability (Python, JavaScript or similar) What We’re Looking For Builder mindset – someone who ships, not just plans High ownership and accountability Comfortable working in a fast‐moving ...

required What you will bring Strong professional experience with C# and ASP.NET MVC Strong SQL Server experience Experience in developing with for the web: JavaScript, HTML, CSS Knowledge of principles of writing mobile apps and deployment on apple and android app stores Experience using GitHub for source control and collaboration ...

with product stakeholders, and contribute to customer-facing features, internal tools and ongoing reliability. You’ll be comfortable across the stack (Ruby on Rails, JavaScript, CSS) and write robust tests. #J-18808-Ljbffr ...

## Senior Software Engineer (Back-End)Applylocations: Belfasttime type: Full timeposted on: Posted 3 Days Agojob requisition id: R5500The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients ...

About TP ICAP Group The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and ...

little as 3-6 months: Step 1 - Introduction to Development - Complete a selection of professional and industry recognised coding courses covering HTML5, CSS3, Javascript and Python. The training is delivered via multimedia rich video tutorials, presentations and quizzes, through a portal that you study from home. These courses will give … friendly advisors will be in touch. Keywords: Coding, programming, web developer, software developer, app developer, Trainee, PHP, HTML, SQL, CSS3, Java, Javascript, Python, C#, Trainee Web Developer ...