6,678+ Lead Java Application Developer Java Web Tech Jobs in Belfast, UK — Local Employers Hiring June 2026

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
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.

Reset

Create Job Alert

 
   
Reset

Ruby on Rails Engineer — Scale a Sports SaaS (Remote/Hybrid)

A dynamic sports-tech SaaS company based in Northern Ireland is seeking an experienced Software Developer (Ruby on Rails) to shape its engineering culture and architecture. You'll own end-to-end features that deliver real value to sports clubs and their members. This role requires at least 2 years of experience ...

Senior Engineer (Vice President)

**Role**As a Senior Engineer you will be responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities **About the Departme ...

Application Security Lead/ 9 months Contract/ Fully Remote

Application Security Lead - Up to £675 per day 9 months contract- Inside IR35 Fully Remote UK based CBTR is working with a leading enterprise client to hire an experienced Application Security Lead to own and evolve their application security capability across the full ...

Managing Engineer Security Software

Managing Security Engineer (Hybrid) The Opportunity Our client is seeking an experienced Managing Security Engineer to lead a high‑performing engineering team responsible for designing, building, and operating security controls as scalable software products. This is a hands‑on leadershi ...

Managing Engineer Security Software

Managing Security Engineer (Hybrid) The Opportunity Our client is seeking an experienced Managing Security Engineer to lead a high-performing engineering team responsible for designing, building, and operating security controls as scalable software products.Apply fast, check the full description by scrolling ...

Senior Software Engineer in Belfast Ocho

Engage in Greenfield Projects DailyTechnologies:AWSAngularJavaReactASP.NETNodeJSCloudC#SupportJavaScriptYears of Post-graduate Engineer ...

Senior Software Engineer Java (Belfast, Hybrid with 3 days on site per week)

About the opportunity Enably is hiring on behalf of a Belfast-based cybersecurity company looking to add a Senior Java Software Engineer to its engineering team. This is a hybrid role, with 3 days per week in the Belfast office. It would suit someone who enjoys building robust backe ...

Software Engineering Team Lead

MCS Group is working with an exciting software scale-up building AI-powered products used by enterprise customers globally. They're now looking for a hands-on Engineering Team Lead to join their growing backend team. This role is ideal for a strong Senior or Lead software Engineer who still loves co ...

React + TypeScript UI Engineer — Frontend Innovator

A leading software development company in Northern Ireland is looking for a talented web developer to design, develop, and maintain user interfaces using React and TypeScript. Candidates should have at least 3 years of experience and a strong background in web application development. Collaboration with business ...

Software Engineering Team Lead

MCS Group is working with an exciting software scale-up building AI-powered products used by enterprise customers globally.You can get further details about the nature of this opening, and what is expected from applicants, by reading the below.They're now looking for a hands-on Engineering Team Lead to j ...

Software Test Engineer (AVP)

**Discover your future at Citi** Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. **Job Ov ...

Senior Backend Developer

Location: RemoteEmployment Type: Contract What You’ll Do Design and implement scalable backend systems to support real-time multiplayer features Develop APIs and services that interact with game clients, databases, and third-party platforms Optimize server performance, latenc ...

Senior Software Engineer

The RoleWe’re looking for experienced Senior Software Engineers who enjoy building scalable systems, working with cloud infrastructure, and delivering high-quality software in production environments.This role sits at the intersection of software engineering and cloud/platf ...

Senior Front End Engineer Belfast in Belfast Ocho

Qualifications Looking for someone who possesses humility, integrity, curiosity, and a strong drive to support teammates. You should have experience in JavaScript or another structured language such as Python, Java, or C#. Additionally, familiarity with one or more JavaScript frameworks, like Reac ...

Software Engineering Team Lead

MCS Group is working with an exciting software scale-up building AI-powered products used by enterprise customers globally. They're now looking for a hands‑on Engineering Team Lead to join their growing backend team. This role is ideal for a strong Senior or Lead software Engineer who st ...

Senior Python Developer — Front Office Risk Tech (LLM/RAG)

Citi is looking for an experienced Applications Development Senior Programmer Analyst in Belfast. This role requires participation in developing and implementing application systems in collaboration with the Technology team. As part of the Wholesale Credit Risk Technology team, you will design innovati ...

Senior Software Engineer JBLE1_NI

MCS Group is delighted to be partnering with a growing consultancy as they establish a brand-new engineering presence in Belfast. Our client is a high-growth cloud, data, and AI engineering consultancy delivering mission-critical solutions for enterprise and scaling clients across modern cloud ecosystems. This i ...

Senior C++ Developer

Senior C++ Software EngineerStaff-level individual C++ contributor with a clear path to technical leadership C++ server-side engineering handling global transaction volumes Hybrid working with genuine flexibility to work from home 35 days holiday, private medical, ...

DevOps Engineer

Required Experience Experience Required: 2-3 years only Principal-level hands-on engineer delivering distributed, cloud-native systems Deep expertise in Kubernetes , especially stateful applications ...

Lead Front End Developer (React)

Company Description Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster str ...

Lead Mobile Developer: Flutter Migration & Team Lead

A technology company in Belfast is seeking a Lead Mobile Developer to shape their mobile platform's direction. In this role, you'll lead the migration from Xamarin to Flutter and mentor a growing team. The ideal candidate has deep experience in mobile app development for both Android and iOS and a passion for bu ...

Lead Front End Developer (React)

Company Description Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong pa ...

Lead Front End Developer (React)

Company DescriptionCheck you match the skill requirements for this role, as well as associated experience, then apply with your CV below.Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expe ...

Managing Engineer Security Software

Managing Security Engineer (Hybrid)The OpportunityOur client is seeking an experienced Managing Security Engineer to lead a high-performing engineering team responsible for designing, building, and operating security controls as scalable software products. This is a hands-on leadership role ...

Principal .Net Developer ( AI )

Principal Software Architect / Engineering Manager Belfast | Hybrid | Permanent | Competitive + Leadership Bonus This one is different.Learn more about the general tasks related to this opportunity below, as well as required skills.Most architecture roles are advisory.This one has teeth.Our clien ...

Senior Software Engineer

The Role We’re looking for experienced Senior Software Engineers who enjoy building scalable systems, working with cloud infrastructure, and delivering high-quality software in production environments. This role sits at the intersection of software engineering and cloud/platform work. You ...

Senior Software Engineer

The Role We’re looking for experienced Senior Software Engineers who enjoy building scalable systems, working with cloud infrastructure, and delivering high-quality software in production environments. This role sits at the intersection of software engineering and cloud/platform work. You ...

Senior React Developer

MCS Group is delighted to be partnering with a leading global technology firm building a cutting-edge engineering hub in Belfast, focused on delivering innovative software solutions used worldwide.Check all associated application documentation thoroughly before clicking on the apply button at the bottom of t ...

Lead Platform Consultant

Lead Platform Consultant | Up to £90,000 | Belfast | Hybrid We are working with a globally recognised financial services organisation to hire two Lead Platform Consultants into their growing product security function.Increase your chances of reaching the interview stage by reading the complete job descriptio ...

DevOps Engineer

Required Experience Experience Required: 2-3 years only Principal-level hands-on engineer delivering distributed, cloud-native systems Deep expertise in Kubernetes , especially stateful appli ...

Senior Full stack Engineer

Senior Full Stack Engineer (TypeScript) Ocho People | Technology Recruitment Senior Full Stack role at a world-leading financial markets infrastructure organisation Brand new platform built in partnership with AWS, genuinely greenfield work TypeScript across the full stack with a modern, well-architected tech ba ...

Tech Delivery Lead – Cloud Water Analytics

A leading wastewater solutions provider in Belfast is looking for a Technical Developer to manage cloud infrastructure and support customer deployments. Key responsibilities include capturing and prioritizing work in Agile, addressing customer issues, and optimizing AWS services. The ideal candidate holds a rele ...

Platform Tech Architect & Cloud DevOps Lead

Job Information CAPABILITY / JOB FAMILY GROUP: Platforms JOB FAMILY: Platform Architecture JOB PROFILE TITLE: Platform Technical Architect MANAGEMENT LEVEL: Consultant Job Profile Description MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS: </ ...

Global Logistics Lead – Clean Tech & Sustainability

ScaleX™ Talent Solutions in Belfast is seeking a Senior Logistics Co-Ordinator to enhance their Operations function. In this role, you will manage global shipments, ensure compliance, and support supplier relationships within a fast-paced, innovative environment. The ideal candidate should have over 5 ...

Tech Enablement Lead – Hybrid Energy Grid

A leading energy organisation is seeking a Technology Enablement Manager in Belfast. This managerial role includes leading innovation in energy systems and driving projects to integrate new technologies and flexibility solutions. Candidates should have a degree in engineering or a related field, along with signi ...

Cloud Native Software Architect & Tech Lead

A leading digital solutions provider in Belfast is seeking a Staff Software Engineer to oversee software delivery and architect solutions. The ideal candidate will have strong technical expertise, particularly in cloud native architecture, and the ability to build great customer relationships. This role emphasiz ...

VP, Fixed Income Tech Lead Hybrid

Citibank (Switzerland) AG is seeking a Fixed Income Technical Lead in Belfast, UK. This role involves supporting the Finance Desk, managing applications like Finance Workstation, and overseeing technical stability and incident resolution. Candidates should have experience with UNIX systems, Oracle SQL, and a bas ...

Global Market Enablement Lead Dairy Tech

A leading food processing equipment supplier is looking for a Global Market Support Manager in Belfast. The role involves empowering sales teams to drive global sales and adopting innovative farm management solutions. Candidates should possess a degree in a relevant field and have strong skills in sales support ...

Tech Delivery Lead – Cloud Water Analytics

A leading wastewater solutions provider in Belfast is looking for a Technical Developer to manage cloud infrastructure and support customer deployments. Key responsibilities include capturing and prioritizing work in Agile, addressing customer issues, and optimizing AWS services. The ideal candidate holds a rele ...

Tech Delivery Lead – Cloud Water Analytics

A leading wastewater solutions provider in Belfast is looking for a Technical Developer to manage cloud infrastructure and support customer deployments. Key responsibilities include capturing and prioritizing work in Agile, addressing customer issues, and optimizing AWS services. The ideal candidate holds a rele ...

Data Solution Architect

Data Solution Architect Location: Belfast (Hybrid) Eligibility: UK work authorisation required (no sponsorship available) We're working with a growing technology consultancy delivering large scale data transformation programmes within the healthcare domain, and they're looking for a Data Solution Architect to le ...

Senior Application Development Lead Generative AI (GenAI), Vice President

Are you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, application development, problem solving and communication to Source to Pay Solutions Technology group. By Joining Citi, you will become part of a global organisation w ...

Senior Application Development Lead Generative AI (GenAI), Vice President

Are you looking for a career move that will put you at the heart of a global financial institution? Then bring your skills in analysis, application development, problem solving and communication to Source to Pay Solutions Technology group. By Joining Citi, you will become part of a global organisat ...

Lead Python Engineer VP

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

DevOps Engineer

Required Experience Experience Required: 2-3 years only Have you got the right qualifications and skills for this job Find out below, and hit apply to be considered.Principal-level hands-on engineer delivering distributed, ...

Technology Field Application Engineer

Position: Technology Field Application EngineerJob Description: Principal AccountabilitiesBe part of driving technical sales results for the embedded microcontroller and microprocessor team, in particular, championing wireless connectivity.Actively drive customer ...

Senior Software Engineer

MCS Group is delighted to be partnering with a growing consultancy as they establish a brand-new engineering presence in Belfast. Our client is a high-growth cloud, data, and AI engineering consultancy delivering mission-critical solutions for enterprise and scaling clients across modern cloud ecosystems. ...

Senior Application Security Engineer

TL;DR We’re looking for a deeply technical Application Security Engineer to embed inside engineering and help secure Cloudsmith 2.0, the operating system for the modern software supply chain. The ideal person is a software engineer at heart who chose to specialize in security. You should be comfo ...

Lead Platform Engineer

Lead Platform Engineer | Up to £90,000 | Belfast | Hybrid We are working with a globally recognised financial services organisation to hire two Lead Platform Consultants into their growing product security function. This is a senior individual contributor role for someone who can oper ...

🚀 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

    Lead Java Application Developer Java Web Tech Jobs in Belfast Job Search Guide, Trends and Insights