Permanent JavaScript Jobs in Northern Ireland

1 to 25 of 49 Permanent JavaScript Jobs in Northern Ireland

Lead AI Software Developer

Belfast, United Kingdom
Hybrid / WFH Options
VanRath
frameworks. Advance AI Capability - Architect and deploy innovative machine learning features to elevate product intelligence, especially around automation and compliance. Full-Stack Leadership - Craft seamless user experiences using modern JavaScript tools while maintaining powerful, scalable back end systems. Champion Best Practice - Enforce high standards for performance, maintainability, and security throughout the codebase. Work Cross-Functionally - Collaborate closely with company founders More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

26 Jun 2025 BBBH58577 Frontend Developer £70000.00 - £75000.00 per annum + Hybrid Belfast

Belfast, United Kingdom
Hybrid / WFH Options
MCS Group
ll also help expand and mentor a growing team based in Belfast. What You'll Bring: Extensive front-end development experience Deep knowledge of modern technologies like React, TypeScript, JavaScript, and HTML5 OR Angular.js A track record of building robust, scalable UI architectures Experience working within cloud environments and applying security best practices What's on Offer: A competitive salary More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

IT Support Technician

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Venesky Brown
and mitigate against project challenges or risks - Work with service designers, UX specialists and other developers to translate wireframes and mockups into real interfaces. Essential Skills: - Experience of modern JavaScript practices and industry standards regarding front-end technologies - Commercial experience with React, Typescript, NodeJS, Redux, HTML5, CSS3, Webpack, React Testing Library - Experience with RESTful APIs - Experience writing unit and integration More ❯
Posted:

Staff Front End Engineer

Northern Ireland, UK
Hybrid / WFH Options
Ocho
cross-functional initiatives, architecture decisions, and design system evolution What We’re Looking For: 8+ years of front-end development experience, with deep knowledge of React, TypeScript, and modern JavaScript (ES6+) Proven experience leading front-end projects or platforms in a fast-paced environment Strong understanding of component architecture, state management, and testing strategies Familiarity with accessibility (a11y) standards and More ❯
Employment Type: Full-time
Posted:

Lead Java Developer - VP (Belfast)

Belfast, United Kingdom
Citigroup Inc
collaborate effectively with product owners and team members Experience working with the Scrum methodology Experience working with a NoSQL database, preferably MongoDB/Redis Experience developing web frontend using Javascript frameworks (prefer AngularJS, React & VUE) Exposure to functional programming language like Scala. Financial services technology experience preferably in reference data domain Physical and logical data modelling This job description provides More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Software Engineer

Belfast, Northern Ireland, United Kingdom
Lucera Financial Infrastructures
/Python CI/CD Tools, automated testing, delivery (Teamcity, Jenkins etc) Knowledge of networking protocols UDP, TCP, HTTP Experience with REST, WebSockets Version Control – preferably Git Grails Framework JavaScript – Bootstrap/JQuery More ❯
Posted:

Senior DevOps Engineer

Northern Ireland, UK
Realtime Recruitment
/GitLab) and build/release tools (e.g., Jenkins, Azure DevOps, Artifactory). Strong experience with Infrastructure as Code (Terraform), Configuration as Code (Ansible), and automation scripting (Python/JavaScript). Proficient in Docker and Packer. Familiarity with cloud architecture, networking, and build management tools (Nuget, Maven). Experience with Agile methodologies (Jira), monitoring tools (Elastic/Splunk), and Linux More ❯
Posted:

Software Engineer

Belfast, UK
Hybrid / WFH Options
Reward
and influence the direction of our evolving tech stack. Tech you’ll work with: Back-end: Node.js or .NET Core/.NET 5+ Front-end: Angular (or other modern JavaScript frameworks) Cloud: AWS + Infrastructure-as-Code Containerisation: Docker, Kubernetes GitHub for version control & code reviews Agile, test-driven environments where quality matters What we’re looking for: We hire More ❯
Posted:

Javascript Developer

Northern Ireland, UK
Hybrid / WFH Options
Ocho
frontend trends and drive continuous improvement • Contribute to architectural decisions and shape the future of the frontend platform Essential Criteria: • Strong commercial experience building frontend applications with React, TypeScript, JavaScript (ES6+), HTML5, and CSS3 • Proven ability to create high-performance, responsive, and accessible interfaces for data-rich SaaS platforms • Expertise integrating APIs using REST and/or GraphQL • Experience with More ❯
Employment Type: Full-time
Posted:

.NET Developer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Noir
Our client offers over 20 days of dedicated technical training per year and exposure to cutting edge technologies such as: .NET 9, Web API 2, Entity Framework, Microservices, Azure, JavaScript, Angular 19, Bootstrap, Agile and MongoDB. Additionally you will follow an official structured career progression program. Location : Belfast, Northern Ireland, UK/Remote Working Salary : £35,000 - £65,000 + More ❯
Posted:

Frontend Developer

Belfast, UK
Enso Recruitment
years of experience in a front-end development role, ideally mid-level Strong hands-on experience with Angular and TypeScript Proficient in HTML5, CSS3/SCSS, and modern JavaScript Experience working with RESTful APIs and integrating with back-end services Familiarity with Git or similar version control tools Solid understanding of responsive design and cross-browser compatibility Bonus points for More ❯
Posted:

Full Stack Engineer

Belfast, UK
ViVA Tech Talent
end-to-end, thrive in cross-functional teams, and want to work with the latest in cloud and AI-augmented development... let’s talk. Tech you'll use: Python, JavaScript, Bash Node.js, React, Flask Docker, Kubernetes, AWS, Terraform Kafka, RabbitMQ, GraphQL, REST PostgreSQL, MongoDB, Redis, Elasticsearch AI-assisted development tools and workflows What you'll do: Design and build production More ❯
Posted:

Appian Software Engineer

Belfast, UK
Wipro
to best practices and coding standards. Document technical specifications and user guides. What you will bring: Strong understanding of Appian architecture and components. Familiarity with web technologies (HTML, CSS, JavaScript) and RESTful APIs. Knowledge of relational databases and SQL. Excellent problem-solving and communication skills. Inclusion At Wipro we don’t just look at your CV. We’re more focused More ❯
Posted:

ServiceNow Architect

Belfast, UK
Henderson Scott
Architect on integration projects, ideally within the public sector. Familiar with key integration technologies: SSO, SAML, SSL REST, SOAP, JSON LDAP, JDBC, ODBC SCP, FTPS, Web Services Experience with: JavaScript (HTML5, Jelly, jQuery, AngularJS) Agile/Scrum delivery Jira, Confluence, RabbitMQ, Apache Camel, DevOps Knowledge of: Microservices architecture Enterprise integration patterns Exposure to other ITSM platforms (e.g., BMC Remedy, HP More ❯
Posted:

ServiceNow Architect

Antrim, Co. Antrim, UK
Henderson Scott
Architect on integration projects, ideally within the public sector. Familiar with key integration technologies: SSO, SAML, SSL REST, SOAP, JSON LDAP, JDBC, ODBC SCP, FTPS, Web Services Experience with: JavaScript (HTML5, Jelly, jQuery, AngularJS) Agile/Scrum delivery Jira, Confluence, RabbitMQ, Apache Camel, DevOps Knowledge of: Microservices architecture Enterprise integration patterns Exposure to other ITSM platforms (e.g., BMC Remedy, HP More ❯
Posted:

Front End Tech Lead (React)

Belfast, UK
Hybrid / WFH Options
iO Associates - UK/EU
interfaces, contribute to architectural decisions, and mentor others in a collaborative, product-driven environment. What You'll need: 8+ years of experience in frontend development, with deep knowledge of JavaScript/TypeScript. Proven expertise in React, or similar frameworks. Solid understanding of state management (e.g., Redux, Pinia) and component-based architecture. Experience integrating with RESTful and GraphQL APIs. Familiarity with More ❯
Posted:

SC/DV Cleared Senior Platform Engineer

Belfast, UK
IO Associates
ASAP Skills & Experience: Active SC or DV Clearance. Proven experience in VMware/Aria ecosystems. Orchestration experience, with the ability to create and manage complex workflows. Strong scripting skills (JavaScript, Python, PowerShell). Solid understanding of source control and CI/CD pipeline management. Strong networking knowledge within secure infrastructure environments. Ability to operate at a senior level with excellent More ❯
Posted:

SC/DV Cleared Senior Platform Engineer

Antrim, Co. Antrim, UK
IO Associates
ASAP Skills & Experience: Active SC or DV Clearance. Proven experience in VMware/Aria ecosystems. Orchestration experience, with the ability to create and manage complex workflows. Strong scripting skills (JavaScript, Python, PowerShell). Solid understanding of source control and CI/CD pipeline management. Strong networking knowledge within secure infrastructure environments. Ability to operate at a senior level with excellent More ❯
Posted:

Staff AI Engineer

Belfast, UK
ViVA Tech Talent
Own core system components, mentor engineers, and lead with impact What you’ll bring: 8+ years in software/AI engineering, with 3+ focused on ML systems Python + JavaScript, Transformers, LangChain, vector DBs (e.g. Pinecone) MLOps, cloud AI (SageMaker, Bedrock), containerized environments (K8s, Docker) Experience building production AI systems that scale and handle sensitive data The setup: Hybrid (Belfast More ❯
Employment Type: Full-time
Posted:

Application Security Engineer/Experienced Pen Tester

Belfast, United Kingdom
Hybrid / WFH Options
ESO
skill levels Your experience should include: Using offensive security tooling, including tools such as Burp Suite, Kali, Metasploit and such Scripting including the use of python, Powershell, bash or Javascript Securing networks, hosts, web applications and cloud native deployments Working with toolsets such as: vulnerability management, firewalls, SIEM, PAM, IDS/IPS, EDR/XDR, WAF Working with code security More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

Belfast, United Kingdom
Citigroup Inc
Basic Qualifications Bachelor's degree in computer science or engineering field involving software programming or systems engineering Hands-on professional software development experience Proficiency in programming in Java, Python, JavaScript or React Hands on experience of building RESTful APIs using popular frameworks like Spring Experience of following TDD and clean code principles Proficiency with data structures, algorithms and SQL Able More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Blockchain Engineer

Northern Ireland, United Kingdom
Hybrid / WFH Options
P2P
members about blockchain features Qualifications At least 2-4 years of experience as a blockchain developer Strong background in software development Advanced proficiency in programming languages like C++, Java, JavaScript, or C# Full-Stack development experience Knowledge of cryptography and blockchain protocols Advanced analytical and problem-solving skills Superb organizational skills and keen attention to detail Excellent communication and collaboration More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior DevOps Engineer

Belfast, United Kingdom
Rewardinsight
cutting-edge technology. This is a unique opportunity to become a key member of a forward-thinking, technology-focused organization. The successful candidate will work with technologies such as JavaScript (Angular/Node), .Net Core/.NET 5 +, AWS, IaC, Docker, Fargate, and Kubernetes. You will also play a significant role in shaping the future of our Tech and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

DevOps Engineer

Belfast, United Kingdom
Hybrid / WFH Options
VanRath
with proven CI/CD pipeline implementation experience. 3-5+ years' experience working with cloud platforms (AWS, Azure, or GCP). Strong scripting and automation skills (e.g., Python, JavaScript). Proficiency in tools such as Jenkins, CircleCI, GitHub/GitLab, Terraform, and Ansible. Familiarity with containerization (Docker), networking, and cloud security principles. Understanding of infrastructure, version control, and build More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Coding Trainee Placement Programme

Belfast, City of Belfast, County Antrim, United Kingdom
ITOL Recruit
is required and relevant for many entry level programming roles and help you get a step ahead. Learn the Command Line (*1.5 weeks) Learn Git & GitHub (*1.5 weeks) Learn JavaScript (*1.5 weeks) Learn Python 3 (*1.5 weeks) JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition language in building your programming More ❯
Employment Type: Permanent
Posted:
JavaScript
Northern Ireland
10th Percentile
£45,500
25th Percentile
£50,000
Median
£67,500
75th Percentile
£83,750
90th Percentile
£86,000