• Belfast Jobs Expertini profile avatar

    • Javascript Developer Software Developer Software Engineer Jobs in Belfast, UK

    Professional job seekers finding United Kingdom jobs through Expertini
    750,000+ professionals on Expertini 750,000+ Candidates
    Join our global community
    Explore Leading Employers
    High-Paying Careers
    Expertini Penguin Mascot Resume Score™
    Resume Score™ Instantly
    Upload Your CV
    Quick 30-second process

    Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

    1. Expertini
    2. United Kingdom
    3. Belfast
    4. Jobs
    5. Javascript Developer Software Developer Software Engineer Jobs

    6. Download PDF

    Reset

    Create Job Alert
      Add Alert

     
     
    Create Alert
     
    Reset

    Entry Level Recruitment Consultant

    Entry Level Recruitment Consultant Reperio Human Capital is one of Ireland's most reputable and successful niche IT recruitment consultancies. Specialising in the IT & Software recruitment market, we have positioned ourselves in one of the fastest growing and competitiv ...

    Clerical Officer Required for immediate start

    Your new company Hays are working with the Northern Ireland Assembly to recruit for a temporary Clerical officer. This role requires someone who is available for an immediate start. Your new role Clerical Officers are responsible for providing administrati ...

    Clerical Officer

    Your new company Hays are working with the Northern Ireland Assembly to recruit for a temporary Clerical officer. This role requires someone who is available for an immediate start. Your new role Clerical Officers are responsible for providing administrati ...

    Senior Chartered Landscape Architect

    HLM Landscape team has an exciting opportunity for a Senior Chartered Landscape Architect (ILI or CMLI) to take on the role of a Project Leader, working across Ireland, either based in our Dublin or Belfast studio. You would be join our growing landscape team, with studios in the UK and Ireland. ...

    In House Tech Recruiter 12 month contract

    In-House Tech Recruiter - Global Technology Organisation - Belfast MCS Group is delighted to be partnering with a global technology organisation undergoing a significant period of transformation and growth, to appoint an In-House Tech Recruiter on a 12 month fixed-term contract bas ...

    Graduate Research and Development Scientist

    ARC's purpose is to expedite access to precision medicine clinical trials for patients globally. We fulfil our purpose through our dedicated team of experts with unparalleled domain knowledge, and the important relationships we have developed with our global clients. We are a Belfast-based Clinical R ...

    Senior Analyst, LPM UK, US & EMEA / APAC, Belfast

    JOB DESCRIPTION Herbert Smith Freehills Kramer is a world-leading global law firm, where our ambition is to help you achieve your goals.Exceptional client service and the pursuit of excellence are at our core. We invest in and care about our client relationships, which is why so many are longsta ...

    Senior Analyst, LPM UK, US & EMEA / APAC, Belfast

    JOB DESCRIPTION Herbert Smith Freehills Kramer is a world-leading global law firm, where our ambition is to help you achieve your goals.Exceptional client service and the pursuit of excellence are at our core. We invest in and care about our client relationships, which is why so many are longsta ...

    Domestic Gas Service and Breakdown Engineer Boiler Manufacturer

    Example Recruitment Group is currently recruiting on behalf of one of the UK’s leading boiler manufacturers.They are currently recruiting for a service and breakdown domestic gas/heating engineer to join their team on a permanent basis.The Role: * Working in the BT postcodes area (Candidate ideally ...

    Domestic Gas Service and Breakdown Engineer Boiler Manufacturer

    Example Recruitment Group is currently recruiting on behalf of one of the UK’s leading boiler manufacturers.They are currently recruiting for a service and breakdown domestic gas/heating engineer to join their team on a permanent basis.The Role: * Working in the BT postcodes area (Candidate ideally ...

    Principal Engineer & R&D Lead, Advanced Mechanical Systems

    A leading engineering company in Belfast is seeking a Principal Engineer to lead innovative R&D in mechanical engineering. This pivotal role involves managing transformative projects in rotating unions and condition monitoring systems. The ideal candidate will have over 10 years of experience, a Master's degree ...

    Graduate Electrical Engineer / Water Belfast (Summer 2026 starts)

    **Company Description****Work with Us. Change the World.**At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure co ...

    Senior Cybersecurity Engineer: Own End to End Security

    A global manufacturing and technology business in Belfast is hiring a Senior Cybersecurity Engineer. This hybrid role involves enhancing security controls and collaborating with teams across the US and Europe. Candidates should have over 5 years of hands-on experience in cybersecurity and an understanding of clo ...

    Senior Electrical Engineer Water & I&C Design (Hybrid)

    An infrastructure consulting firm is looking for a Senior Electrical Engineer to join their team in Belfast. This role involves leading the design of electrical and ICA elements in water treatment projects, managing bids, and mentoring junior engineers. Ideal candidates will have a passion for innovation and the ...

    Hybrid DSP/RF Verification Engineer: UVM, FFT & FIR

    A technology firm in Belfast is seeking an experienced engineer to drive verification for DSP/RF signal-chain blocks using UVM and advanced verification techniques. The role involves validating algorithms such as FFT, FIR, and channelizers. Candidates should possess strong skills in UVM, DSP verification, and Py ...

    Principal Engineer & R&D Lead, Advanced Mechanical Systems

    A leading engineering company in Belfast is seeking a Principal Engineer to lead innovative R&D in mechanical engineering. This pivotal role involves managing transformative projects in rotating unions and condition monitoring systems. The ideal candidate will have over 10 years of experience, a Master's degree ...

    Entry Level Site Reliability Engineer (Remote United Kingdom)

    Summary Yelp engineering culture is driven by our values: we’re a cooperative team that values individual authenticity and encourages creative solutions to problems. All new engineers deploy working code their first week, and we strive to broaden individual impact with support from managers, mento ...

    Senior ML Engineer LLMs & Agentic AI (Hybrid Belfast)

    A leading AI solutions provider in Belfast is looking for a Senior ML / AI Engineer to build impactful systems using Large Language Models. This role involves designing workflows, developing RAG pipelines, and architecting production ML services. Applicants should have robust Python skills and ML experience, par ...

    Sr Systems Engineer REO Compute Support (Tue Sat)

    **The Sr Systems Engineer - REO Compute Support (Tue - Sat)**Key Responsibilities:* Contribute to incident response and on-call rotation - own and resolve escalated incidents, identifying and mitigating root causes associated with distributed computing architecture (client server, intranet/internet), h/w platfor ...

    Junior Java & Cloud Engineer – 24 Month Belfast Hybrid

    A prominent UK-based technology firm is looking for Junior Developers and Developers for 24-month hybrid assignments in Belfast. Candidates will engage in hands-on development, working in teams with seasoned engineers on Java microservices, Kubernetes, Azure, and React Native. This opportunity is part of the Ele ...

    Senior Water Networks Engineer (Hybrid) — Lead Modelling & Design

    A global engineering firm is seeking a Senior Water Networks Engineer/Modeller to join their Water team in Belfast. The role involves leading technical projects, providing mentorship, and collaborating with multidisciplinary teams to enhance water systems. Essential skills include hydraulic modelling, excellent ...

    Staff Java Engineer Remote/Hybrid, Scalable AWS Backend

    A leading tech recruitment firm is seeking a Staff Java Engineer based in Northern Ireland to design and deliver high-performance backend services. The role involves working with modern Java and AWS to build scalable systems. Ideal candidates will have deep AWS experience and a proactive mindset. With a flexible ...

    Power BI Data Engineer Law Firm Analytics & Fabric

    A leading law firm in Belfast is looking for a Data Engineer to join their data team. The successful candidate will focus on developing Power BI reports and Microsoft Fabric configurations while ensuring effective data solutions. Requirements include proficiency in T-SQL, DAX, and experience with complex financi ...

    Senior Backend Engineer: Build Scalable Microservices in Cloud

    A global technology company in Belfast is seeking a Senior Engineer to join their Content Core team. You will develop and implement solutions to enhance client experiences, focusing on backend technologies and scalable microservices. Ideal candidates have over 5 years of experience, a relevant degree, and a stro ...

    AI Lead Engineer — Finance Tech (Hybrid, Growth & Mentorship)

    A global financial services firm in Northern Ireland is seeking an experienced Python lead for its Wholesale Credit Risk Technology team. The role involves leading the development of innovative technology solutions in collaboration with onshore and offshore teams. Candidates should have over 8 years of hands-on ...

    NOC Engineer — 24/7 Shifts, Career Growth & Training

    A tech services company is seeking a skilled NOC Engineer for 24/7 shifts in Belfast. In this role, you will resolve IT/network incidents, support field engineers, and ensure high-quality service delivery. Ideal candidates will thrive in fast-paced environments with a passion for customer service and have experi ...

    Lift Test Engineer Belfast TK Elevator UK Ltd

    We are looking for an experienced and passionate Lift Test Engineer to join our Belfast team, who will be responsible for providing technical expertise during the installation of our clients' elevators across the UK region. As a Lift Test Engineer, your day to day will include: Provid ...

    Field Service Engineer 4 Day Week & Home Services

    A telecommunications provider in Belfast is seeking Technicians to install and maintain broadband, TV, and phone services. The ideal candidate will have a UK manual driving licence and be comfortable working outdoors in all conditions. Responsibilities include resolving technical issues and ensuring exceptional ...

    DeltaV CSV Engineer Pharma Validation (6 Month Contract)

    A global pharmaceutical company located in Northern Ireland is seeking an experienced CSV Engineer for a 6-month contract. The ideal candidate will have Delta-V CSV implementation experience, particularly in recipe-driven Batch manufacturing. Key responsibilities include supporting commissioning and validation p ...

    AI Lead Engineer, Hybrid – Wholesale Credit Risk Tech

    A leading global financial institution is seeking a Python Lead for its Wholesale Credit Risk Technology team in Belfast. This role involves designing and delivering innovative technology solutions using Python and FastAPI, as well as collaborating with onshore and offshore teams to implement enterprise-scale ap ...

    Hybrid Principal Clean Water Process Engineer: Design Lead

    A global engineering services firm is seeking a Principal Clean Water Process Engineer in Belfast, UK. This role involves managing technical design work for complex water projects, mentoring team members, and working collaboratively on innovative solutions for the UK water market. Candidates should possess a deg ...

    Senior Applied AI Engineer Hybrid Consultant (UK Travel)

    A leading professional services firm is seeking a Senior Consultant – Applied AI Engineer in Northern Ireland. This role involves designing AI capabilities, collaborating with clients, and implementing solutions with a focus on Python, cloud engineering, and microservice frameworks. The position offers a hybrid ...

    Embedded x86 Competitive Marketing and Sales Enablement Engineer

    At AMD, our mission is to build great products that accelerate next‑generation computing experiences—from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes from bold ideas, human ingenuity and a shared passion to ...

    Embedded x86 Competitive Marketing and Sales Enablement Engineer

    WHAT YOU DO AT AMD CHANGES EVERYTHING At AMD, our mission is to build great products that accelerate next‑generation computing experiences—from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes from bold i ...

    Structural Engineer – Fast Growth Firm | 24 Days Leave

    A leading civil & structural consultancy in Northern Ireland is seeking a Structural Engineer for their North Belfast office. This permanent position offers job security and involves engaging in a variety of commercial, residential, and government projects. Candidates should have at least 3 years of experience o ...

    Marine Electrical Design Engineer Zuken E3 & BoM Expert

    A trusted engineering and consulting firm in Northern Ireland is seeking a skilled Electrical Engineer. The successful candidate will manage Bills of Materials (BoM) and ensure electrical designs meet industry standards. Proficiency in Zuken E3 and experience in the marine sector are essential. The firm offers a ...

    SCADA Engineer — Hybrid Role Driving Decarbonisation & OT Upgrades

    A leading recruitment agency is seeking a SCADA Engineer in Belfast to ensure the safe and reliable operation of the electricity transmission system. This role involves maintaining and enhancing SCADA and Energy Management Systems. The ideal candidate will have hands-on experience with SCADA systems and relevant ...

    DevOps Engineer – Cloud Infra, CI/CD & Stock Options

    A fintech company in Belfast is looking for a DevOps Engineer to design secure, scalable cloud infrastructure and improve CI/CD pipelines. You will ensure system reliability while collaborating with engineering teams. The ideal candidate has over 3 years of experience in a similar role and strong skills in AWS. ...

    Sr Systems Engineer REO Compute Support (Tue Sat)

    Sr Systems Engineer - REO Compute Support (Tue - Sat) Key Responsibilities Contribute to incident response and on-call rotation - own and resolve escalated incidents, identifying and mitigating root causes associated with distributed computing architecture (client server, intranet ...

    Principal UI Engineer: Lead Scalable, High Performance UIs

    A leading financial services company in Northern Ireland is seeking a Principal UI Engineer to drive the design and development of high-performance UI applications. The ideal candidate will have proven experience in technical leadership within complex systems, proficiency in HTML5 and CSS, and strong knowledge o ...

    Senior Drainage Engineer — Hybrid & High Impact Transport Projects

    A leading engineering firm is seeking a Senior Drainage Engineer based in Belfast or Leeds. This role involves delivering drainage services for critical transport infrastructure projects and managing engineering teams. The ideal candidate will have extensive experience in sustainable drainage design and hold a r ...

    Full Stack Engineer: React/Node, Cloud & Client Impact

    A leading digital consultancy in Belfast is seeking a Full Stack Engineer to deliver transformative solutions to complex business challenges. You will be part of a collaborative team responsible for creating web applications using TypeScript, React, and Next.js. The ideal candidate has proven experience in API d ...

    Senior DevOps Engineer Cloud & Platform Growth (4 Day)

    Realtime Recruitment is seeking a Senior DevOps Engineer to advance cloud and platform evolution within a global technology organization in Belfast. This hands-on role involves improving system reliability, scaling environments, and guiding transitions to cloud-native solutions. The successful candidate will lea ...

    Product Engineer Java Spring Boot & Full Stack (Hybrid)

    A leading insurance firm in Northern Ireland seeks experienced Product Engineers with expertise in Java Spring Boot and Full Stack development. The role involves designing and building scalable digital products to protect families and their belongings. Candidates should have over 3 years of experience with moder ...

    Belfast IT Service Desk Engineer (1st/2nd Line)

    Your Company is seeking a Service Desk Analyst to deliver high-quality IT support in Belfast. As the first point of contact for incidents and service requests, you'll ensure excellent communication and customer service. Essential skills include experience providing 1st and 2nd line support, knowledge of Microsof ...

    Level 2 IT Support Engineer — Hybrid & Career Growth

    MCS Group is seeking a proactive Level 2 IT Support Engineer in Belfast for a hybrid role. The successful candidate will provide desktop support, troubleshoot various issues, and support Microsoft 365 administration. Ideal applicants should have strong experience in IT support, particularly in 2nd line roles, de ...

    Senior Civil Engineer – Hybrid Belfast (Infra Design Lead)

    A leading engineering consultancy requires a Senior or Principal Civil Engineer in Belfast. You will lead technical projects, mentor junior engineers, manage delivery from concept to completion, and ensure high standards of quality and safety are met. The ideal candidate will have 5-10 years of experience, a deg ...

    Product Engineer — Java/Spring + Full Stack, Cloud‑Native

    A leading insurance corporation in Belfast seeks a Product Engineer who will design, build, and support innovative digital products. Candidates should have over three years of experience with Java Spring Boot and a strong understanding of full stack development and cloud technologies. The position offers a flexi ...

    Senior End User Support Engineer – MSP (Email/Sec)

    Ocho People is recruiting for an End User Support Engineer in Belfast, UK. In this hands-on contract role, you will support clients with email and web security, Microsoft 365, and endpoint management. The ideal candidate has over 5 years of IT support experience and expert-level knowledge in Microsoft 365. Respo ...

    Senior Full Stack UI Engineer (C#/WPF) – Hybrid

    Citi is seeking a development role for the User Interface in their Equities Technology team, located in Belfast. The ideal candidate will provide technical direction, conduct code reviews, and resolve complex problems using agile methodologies. The position requires extensive development experience, with skills ...

    🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

    Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

    To-Do Planner

    Organize your job search and personal tasks. All data is confidential.

    Open Planner →

    Wellbeing Center

    Access your confidential wellness report and resources to manage job search stress.

    Check Wellbeing →

    Skill Coach

    Plan your skill development with O*NET support to stay competitive in your field.

    Start Coaching →

    Outfit Helper

    Get AI-powered suggestions on what to wear for your next interview.

    Find Outfit →

    Income Tax Calculator

    Plan your finances with our calculator, updated for 2025 tax regulations.

    Calculate Tax →

    Salary Benchmark

    Get accurate, AI-supported salary trends to know your worth and negotiate better.

    Check Salaries →

    Interview Practice

    Practice for any interview with AI-enabled Q&A sessions. All data is private.

    Start Practicing →

    Interview Predictor

    Use our AI-supported tool to predict potential interview questions based on your resume.

    Predict Questions →

    Interview Practice Timer

    Use our mock interview trainer to perfect your answers under timed conditions.

    Start Timer →

    Behavioral Mastery

    Ace tricky behavioral interviews with our AI-powered practice module.

    Master Answers →

    Question Journal

    Confidentially record interview questions you were asked for future reference.

    Open Journal →

    Interview Ace

    A comprehensive tool to help you master every aspect of your interviews.

    Become an Ace →

    Q&A Logs

    Confidentially track your answers to common questions and refine them over time.

    View Logs →

    Application Planner

    Schedule and organize your job applications in one confidential planner.

    Open Planner →

    Cover Letter Tool

    Create perfect, tailored cover letters for each application with AI support.

    Generate Letter →

    Resume Score

    Get instant feedback on your resume with our NLP-supported analysis tool.

    Check My Score →

    ATS Score

    Check your resume's compatibility with Applicant Tracking Systems (ATS).

    Check ATS Score →

    Application Analyzer

    Use AI to analyze job descriptions and optimize your application materials.

    Analyze Application →

    Career Visualizer

    Confidentially plan and visualize your long-term career path and goals.

    Visualize My Career →

    Offer Genius

    Get intelligent insights and strategies to confidently negotiate job offers.

    Negotiate Offers →

    JobFlow

    Track your entire job search progress from application to offer with this intelligent tool.

    Track My Flow →

    JobSense

    Our intelligent matching engine that provides smart job recommendations.

    Get Smart Matches →

    Networking Toolkit

    Tools to build and manage your professional connections. All data is confidential.

    Build Network →

    Professional CV

    A classic, O*NET supported template for corporate and professional roles.

    Use This Template →

    Executive CV

    A premium, O*NET supported template designed for senior and C-level positions.

    Use This Template →

    Modern CV

    A fresh, stylish, O*NET supported template perfect for tech and modern industries.

    Use This Template →

    Creative CV

    A visually distinct, O*NET supported template for design and artistic roles.

    Use This Template →

    Minimalist CV

    A clean, simple, O*NET supported template that focuses purely on content.

    Use This Template →

    Europass CV

    The standard European Union recommended format for wide compatibility.

    Use This Template →

    Student CV

    An institution-recommended template perfect for internships and first jobs.

    Use This Template →

    Graduate CV

    An institution-recommended template for recent graduates entering the workforce.

    Use This Template →

    Academic CV

    The researcher-recommended format for roles in academia and research.

    Use This Template →

    Developer/IT CV

    A tech-savvy recommended template to highlight your technical skills.

    Use This Template →

    Skilled Worker CV

    A trades-recommended template to showcase hands-on skills and experience.

    Use This Template →

    Monochrome CV

    A sleek, black-and-white, O*NET supported template for a professional look.

    Use This Template →

    Art CV

    An artist-recommended template that allows your creativity to shine.

    Use This Template →

    Harvard CV

    A researcher-recommended template based on the classic Harvard format.

    Use This Template →

    Volunteer Research

    Help us improve our platform by joining our community research program.

    Join Research →

    Review Us

    Share your experience with our tools to help other job seekers.

    Share Experience →

    Register

    Create your free account to save jobs, build your profile, and track applications.

    Create Account →

    Login

    Access your dashboard, manage applications, and continue your job search.

    Access Your Account →

    Profile Builder

    Create a comprehensive professional profile that attracts recruiters and showcases your skills.

    Build Your Profile →

    View Profile

    See your public profile exactly as employers will see it. Make sure it's perfect.

    Preview Profile →

    Bookmarked Jobs

    Keep track of all your saved job opportunities in one organized place.

    View Saved Jobs →

    Your Reviews

    View and manage all the company reviews you've submitted.

    See Your Reviews →

    Following

    Manage the list of companies you follow to stay updated on their new openings.

    Manage Following →

    Find Companies

    Discover and research top employers in your country and industry.

    Discover Employers →

    Standalone CV Builder

    Use our O*NET supported CV builder to create a professional resume from scratch.

    Build Your CV →

    PDF to DOC (Beta)

    Convert your PDF resumes or documents into editable Word (DOC) format.

    Convert PDF →

    DOC to PDF (Beta)

    Create universally compatible PDF documents from your Word (DOC) files.

    Create PDF →

    General FAQ

    Find answers to common questions about our job site and platform.

    Read FAQ →

    Job Seekers FAQ

    Get help and find answers to questions specifically for job seekers.

    Get Help →

    Job Matching

    Learn about the technology and algorithms behind how we match you to jobs.

    Learn How →

    Personalized Matching

    Discover how we use your profile and activity to provide customized job suggestions.

    Learn More →

    Quick Apply

    Understand our fast application process and how to make the most of it.

    Learn More →

    Alert Frequency

    Learn how to manage your job alert settings so you get the updates you want.

    Manage Settings →

    Job Alerts Guide

    A complete guide to understanding how job alerts work and how to use them effectively.

    Read Guide →

    Resume Matching

    Learn how our system matches your resume to job requirements.

    Learn More →

    Ethical Branding

    Read our guide to building a professional and ethical personal brand.

    Read Guide →

    Candidate Visibility

    Learn how to increase your visibility to recruiters on our platform.

    Increase Visibility →

    Verified Badge

    Find out how you can get a verified badge to build trust with employers.

    Get Verified →

    AI ATS Technology

    Learn about the advanced AI and ATS technology that powers our platform.

    Learn More →

    ATS Ranking

    Understand how Applicant Tracking Systems rank you as an applicant.

    Learn More →

    Semantic Matching

    Learn how our AI-powered semantic matching goes beyond keywords.

    Learn More →

    💡 Tools that really enhance your application chances and career growth.

    Go to Your Dashboard →

      Javascript Developer Software Developer Software Engineer Jobs in Belfast Job Search Guide, Trends and Insights