JavaScript Developer jobs in Belfast

NodeJS JavaScript Developer - AI & ML Role: Senior or Lead NodeJS Engineer Location: Belfast - 2-3 days per week Salary: Up to £90,000 NodeJS Engineer that would like to work at the forefront of AI integration & Edge deployments? Want to work as part of a team that is developing LLM & SLM capabilities and platforms for mission-critical projects across finance, energy & Defence? We're...

We are looking for an experienced JavaScript developer with a minimum of 2-3 years experience who is proficient with React.js & Next.js. The primary focus would be on developing user interface components, implementing and executing them following well-known React.js workflows (such as Server Side Rendering). Also ensuring that these components and the overall application are robust, reusable...

Are you an experienced JavaScript Developer with a passion for building solutions that power the utilities sector? One of my clients are hiring on a contract basis to help deliver technology that keeps the UK’s essential services running smoothly. What You’ll Do: - Develop and maintain scalable web applications for utility clients - Work with modern JavaScript frameworks (React, Node.js,...

You will be building systems that automate end-to-end workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers.

Senior Full-Stack Engineer - Go/JavaScript Salary: £80,000 - £90,000 Location: Fully-remote Tech: Go, JavaScript, .NET About the role: We’re working with a leading organisation in the legal sector, renowned for their award-winning approach to technology-driven innovation, in support of their efforts to strengthen their growing SaaS team. They are looking for a senior software engineer with...

You will work in an agile software development environment, developing quality and scalable software solutions using leading-edge technologies. Based on business requirements, you will develop code consistent with quality standards and offer support during testing cycles and post-production deployment.

You will have the opportunity to work on various modern web applications across a variety of platforms focusing on the backend. Should you choose, this role will allow you to expand your leadership capabilities as you progress in the company. The team tend to go into the Oxford office once a month.

You should have a strong grasp of object orientated (OO) development principles. Our client can provide you with industry recognized training in: .

You will follow a structured a career development programme with the view to being promoted to the position of Team Leader / Development Manager of your own department within 12 months.

You will be a key player in designing, developing, and maintaining critical backend services. Your expertise in JavaScript and Spring Boot will be essential for creating robust RESTful APIs and event-driven microservices deployed on AWS. We are looking for a developer who is passionate about embedding security, observability, and automation directly into the development lifecycle.

Senior WordPress Engineer Permanent | Fully Remote (UK-based) with occasional London Salary: £90,000 We’re supporting a leading digital company in their search for an experienced Senior WordPress Engineer. This is a fantastic opportunity to work on high-traffic, enterprise-level WordPress properties that reach millions of users every month. As a Senior WordPress Engineer, you’ll play a key...

Visualfiles System Developer Permanent | £35,000 – £45,000 | Remote working available (UK-based) Do you have experience in Visualfiles development and are considering a new challenge? Perhaps you’re looking for a step up, a more balanced workload, or simply the chance to work on meaningful technical projects? If so, we’d love to connect. We’re working with a well-established,...

You will work closely with the creative team developing and prototyping ideas. Strong attention to detail and caring about your work is crucial to us. It’s not just about getting a project across the line but setting it up for on-going development and support

A fast-growing fintech company is hiring a Fullstack Developer(AI) to help build the next generation of intelligent, personalized financial platforms. This role blends modern front-end engineering with AI-powered workflows, automation, and human-centered design to deliver seamless digital experiences for users across global markets. You'll join a lean, high-impact product and engineering team...

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

You will be building systems that automate end-to-end workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers.

HTML5 Games Developer - Pixi.JS £60,000-£75,000 Oxford – Flexible/Remote Harvey Nash have partnered with a global business well established within the online gaming/gambling industry who have ambitious growth plans. The company have a wide array of clients ranging from independent gaming studios to the world’s largest online casinos delivered into by teams across UK, Canada, South Africa, and...

Job Description NodeJS JavaScript Developer - AI & ML Role: Senior or Lead NodeJS Engineer Location: Belfast - 2-3 days per week Salary: Up to £90,000 NodeJS Engineer that would like to work at the forefront of AI integration & Edge deployments? Want to work as part of a team that is developing LLM & SLM capabilities and platforms for mission-critical projects across finance, energy &...

You should have a strong grasp of object orientated (OO) development principles. Our client can provide you with industry recognized training in: .

You will follow a structured a career development programme with the view to being promoted to the position of Team Leader / Development Manager of your own department within 12 months.

.NET Developer, .NET 9 - Social Networking Site – Preston (Tech stack: .NET Developer, .NET 9, C#, Web API 2, Entity Framework, Microservices, Azure, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is the world’s largest social-networking web site and they have ambitions to become the biggest web site in the world! Their global presence currently stretches across 25...

You will be building systems that automate end-to-end workflows from document processing through to statutory filing to make a real impact on tens of thousands of our customers.