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Top Java Developer Jobs in Belfast

2 Days Ago
Belfast, Northern Ireland
5,289 Employees
Senior level
5,289 Employees
Senior level
Consulting
The Java Engineer will design and implement robust software solutions using Java and its features, focusing on object-oriented programming, multi-threading, RESTful services, and various frameworks. Responsibilities include ensuring code quality, automating testing, managing CI/CD pipelines, and optimising application performance.
2 Days Ago
Belfast, Northern Ireland
5,289 Employees
Senior level
5,289 Employees
Senior level
Consulting
The Java Engineer will design and implement scalable software solutions using Java. Responsibilities include developing web applications, implementing REST services, overseeing CI/CD pipelines, and ensuring code quality through testing frameworks. A strong background in leadership and successful project delivery is essential, along with experience in a range of technologies and frameworks.
3 Days Ago
Belfast, Northern Ireland
Remote
4,900 Employees
Mid level
4,900 Employees
Mid level
Fintech • Payments
The Mid Java Developer will be responsible for backend development, focusing on integrations and API suite. Duties include writing high-quality code, managing production support, and promoting continuous engineering improvement. The role demands collaboration with stakeholders to meet requirements and adopt best practices in software development.
3 Days Ago
Belfast, Northern Ireland
85,636 Employees
Junior
85,636 Employees
Junior
Aerospace • Logistics • Security • Software • Cybersecurity
As a Backend Developer at Northrop Grumman UK, you'll design, develop, and maintain backend infrastructure, collaborating with cross-functional teams. Your responsibilities will include the entire software development lifecycle from requirements gathering to deployment, and mentoring junior developers.
3 Days Ago
Belfast, Northern Ireland
85,636 Employees
Senior level
85,636 Employees
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
The Lead Java Engineer role involves designing, developing, and maintaining critical infrastructure for services. It requires collaborating with cross-functional teams, guiding junior developers, and overseeing project deliverables. The role emphasizes a leadership mentality in addressing technical challenges within a dynamic environment.
8 Days Ago
Belfast, Northern Ireland
166 Employees
Senior level
166 Employees
Senior level
Marketing Tech • Software • Automation
As a Lead Java Developer, you will take charge of software delivery within a Unix-based environment, provide technical leadership, mentor team members, and ensure project success through effective collaboration with various stakeholders. Your expertise in Java and MVC frameworks, particularly Spring, will be essential in delivering innovative digital solutions.
10 Days Ago
Belfast, Northern Ireland
Remote
4,900 Employees
Mid level
4,900 Employees
Mid level
Fintech • Payments
As a Mid Java Developer, you will be responsible for backend development including API integration and full stack coding. You'll work closely with stakeholders to understand requirements, write efficient code, and manage production support. You’ll drive continuous improvement through mentoring and following best practices in a dynamic development environment.
12 Days Ago
Belfast, Northern Ireland
Remote
102 Employees
Mid level
102 Employees
Mid level
Software
The Mid-Level Java Engineer will develop and maintain payment solutions while collaborating with a scrum team to enhance usability and efficiency. Responsibilities include designing RESTful services, resolving issues during incidents, and participating in Agile processes, all while ensuring standard-compliant project execution.
14 Days Ago
Belfast, Northern Ireland
Remote
80 Employees
Mid level
80 Employees
Mid level
Information Technology • Consulting
The Java Developer will design, develop, and maintain Java applications using modern frameworks, implement microservice architectures, and create APIs. Responsibilities include applying TDD and BDD methodologies, supporting CI/CD processes, and optimizing applications for cloud platforms while collaborating within multidisciplinary teams.
17 Days Ago
Belfast, Northern Ireland
Remote
3,222 Employees
Mid level
3,222 Employees
Mid level
Cloud • Security • Software • Generative AI
The Software Engineer II will enhance Elasticsearch’s performance in distributed systems by improving indexing mechanisms, maintaining cluster coordination, addressing performance issues, and collaborating with support engineers on complex problems.
7 Days Ago
Belfast, Northern Ireland
Remote
2,135 Employees
Senior level
2,135 Employees
Senior level
Information Technology • Consulting
The Senior Java Full Stack Engineer will manage full stack application development, owning the entire development lifecycle from design to deployment. Responsibilities include developing innovative applications, working in an XP environment with remote pairing, and utilizing a range of technologies to ensure reliable, high-quality code.
8 Days Ago
Belfast, Northern Ireland
Remote
240 Employees
Senior level
240 Employees
Senior level
HR Tech • Information Technology
As a Senior Back-End Engineer, you will design and develop secure APIs, build integrations, own the implementation cycle, collaborate with cross-functional teams, and contribute to architectural decisions to support rapid company growth.
9 Days Ago
Belfast, Northern Ireland
Remote
4,900 Employees
Senior level
4,900 Employees
Senior level
Fintech • Payments
As a Senior Java Software Engineer, you will design and develop high-performance microservices and event-driven architectures, mentor junior engineers, and own the full software development life cycle. You will collaborate across teams, implement scalable solutions, and drive improvements in a cloud-native environment.
11 Days Ago
Belfast, Northern Ireland
203 Employees
Entry level
203 Employees
Entry level
Information Technology • Consulting
As a Quality Engineer, you will collaborate with team members and clients to ensure quality in software delivery. Your responsibilities include designing and executing tests, recording defects, automating APIs with REST, and utilizing BDD frameworks like Cucumber. You'll actively engage in daily stand-ups and share knowledge to enhance the team's skills in a hybrid work environment.
12 Days Ago
Belfast, Northern Ireland
Remote
3,751 Employees
Entry level
3,751 Employees
Entry level
Software
The role involves designing and coding micro-services for the FICO platform, ensuring quality and automated testing, collaborating with global teams, and adhering to agile development methodologies.
20 Days Ago
Belfast, Northern Ireland
Remote
701 Employees
Expert/Leader
701 Employees
Expert/Leader
Information Technology
The Senior Java Developer will design and implement microservices for a cloud contact center platform. Responsibilities include leading the development team, mentoring engineers, conducting code reviews, and collaborating across teams to ensure high-quality software solutions.
22 Days Ago
Belfast, Northern Ireland
3,751 Employees
Mid level
3,751 Employees
Mid level
Software
Join FICO as a Full Stack Java AWS Engineer, where you'll design and code micro-services for a leading analytics platform, participate in agile development, and ensure high-quality software delivery from inception to customer support.
11 Days Ago
Belfast, Northern Ireland
Remote
Senior level
Senior level
Payments
The Senior Software Engineer will work on creating high-volume, high-performance software solutions, focusing on microservices architecture with Java. Responsibilities include mentoring junior engineers, adhering to engineering principles, and ensuring developer experience. The role involves collaboration with development teams to deliver business value and applying best practices in automated testing and delivery.
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