101 to 125 of 135 Java Jobs in Northern Ireland

Citi is hiring a Senior Java Developer to join the Risk Data Team. You will architect and implement robust microservices using Java/J2EE, Spring Boot, and RESTful services while optimizing SQL and CI/CD pipelines. You will lead a team of developers, promote clean code, and help advance ...

development team. The successful candidate will work alongside experienced developers to build, test, and maintain web applications using React on the frontend and Java on the backend. This role is ideal for someone looking to develop their software engineering skills in a collaborative environment.Responsibilities:Utilize knowledge of applications development procedures … business practices, and escalating, managing and reporting control issues with transparency.Role ResponsibilitiesDevelop and maintain user interfaces using React.js.Build and support backend services using Java and related frameworks.Write clean, maintainable, and well-documented code.Participate in code reviews and team discussions.Debug and resolve application issues.Collaborate with designers, developers, and stakeholders to deliver ...

development team. The successful candidate will work alongside experienced developers to build, test, and maintain web applications using React on the frontend and Java on the backend. This role is ideal for someone looking to develop their software engineering skills in a collaborative environment. Responsibilities: Utilize knowledge of applications development … practices, and escalating, managing and reporting control issues with transparency. Role ResponsibilitiesDevelop and maintain user interfaces using React.js. Build and support backend services using Java and related frameworks. Write clean, maintainable, and well-documented code. Participate in code reviews and team discussions. Debug and resolve application issues. Collaborate with designers ...

Dianaduggan is seeking a Full Stack Developer (Java/Python/Go) in Belfast for a leading global financial institution. The candidate will play a critical role in transforming technology in a hybrid multi-cloud environment, primarily leveraging AWS and Google Cloud. Key responsibilities include designing and maintaining scalable applications ...

Role: Java Developer Type: PERM/FTE Location: Belfast, Northern Ireland Working Model: Hybrid VISA SPONSORSHIP is also Available Core Responsibilities: Develop: Architect and maintain robust Java-based microservices leveraging Spring and SpringBoot frameworks. Lead: Guide development efforts, mentor junior developers, and ensure code quality, security, and performance. Collaborate: Partner … with cross-functional and DevOps teams to automate deployments and deliver high-quality solutions. Key Skills Required: Mandatory: Java, Spring, SpringBoot, and SpringMVC. Experience: 5-7 years working with Java microservices, cloud platforms, and containerization technologies. Let me know if you are interested and we can have a confidential chat. ...

have a great reputation for Digital Applications delivery. Due to our growth trajectory, we are now seeking a number of talented, driven and ambitious Java Developers to help drive innovation and product delivery within one of our key clients.This is an exciting opportunity for a Java Developer to not only … exposure to the Apigee platform which is one of the leading API platforms in the market place.The ideal candidate will have experience of delivering Java solutions across enterprise level projects/programmes.It is a position with excellent career prospects, suitable to someone looking to make the next step ...

team builds and operates software What You Bring to the Team Proven software engineering experience with a level of seniority Proficiency in Java, Go, and Python Strong debugging and problem-solving skills — comfortable tracing issues through complex, distributed systems Experience with (or strong aptitude for) large-scale microservice architectures Comfortable ...

invest in you!. Job DescriptionYou may have been working as a Test Engineer, Software Engineer in Test, or Test Analyst who writes Java the way most people write emails — fluently, without thinking twice. You are as comfortable designing and building an automation framework from scratch as you are executing … developers and product owners with a shared responsibility for quality. This is not a role for someone who treats automation as an optional extra — Java-based test engineering is at the core of what you will be doing, and the expectation is that you bring real depth to it. ...

latency market data functionality and work closely with floor traders, production support and other teams to diagnose real-world issues. The role emphasizes Java development, microservices, scripting, and a strong understanding of network protocols. #J-18808-Ljbffr ...

Position Strong Backend Java DeveloperMandatory Skills : Java, Spring, SpringBoot, SpringMVCMode-3 Days from BelfastType-FTE/PermTechnical Skills RequiredExperience with Java NIO components like Channels Buffers and Selectors is expectedExpert knowledge of FIX protocol Market Connectivity and Low latency programming is a mustVery strong in Java and Spring Boot based ...

Citibank (Switzerland) AG in Belfast is seeking an experienced Java software engineer to join Citi Tech, delivering scalable microservices for global finance. You will design and implement backend systems using Java/J2EE, Spring Boot, and RESTful services; lead and mentor teammates; contribute to CI/CD, testing, and cloud ...

Citigroup Inc. in Belfast, United Kingdom is seeking a Senior Software Engineer (Java) to design and develop large, complex distributed systems for the FiTP team. You will contribute to high volume trade capture and processing, with a focus on performance, scalability and reliability. The role requires strong Java expertise, Spring ...

innovate and improve how the team builds and operates softwareWhat You Bring to the TeamProven software engineering experience with a level of seniorityProficiency in Java, Go, and PythonStrong debugging and problem-solving skills — comfortable tracing issues through complex, distributed systemsExperience with (or strong aptitude for) large-scale microservice architectures - Comfortable ...

Aflac Northern Ireland is seeking a Java Engineer to help scale AI-enabled services in a serverless, cloud-first environment. You will develop Java APIs, AWS Lambda functions and microservices that power customer experiences and core business capabilities. You will work in an Agile team, applying TDD and CI/ ...

Belfast. The role centers on modernising billing platforms, delivering cloud-native microservices, and guiding architectural direction across enterprise systems. The position requires deep Java/Spring Boot expertise, AWS/EKS deployment, and Oracle DB knowledge, with a focus on reliability, scalability, and operational excellence. #J-18808-Ljbffr ...

cloud‐native solutions, creating new microservices, and guiding the evolution of billing capabilities across complex enterprise systems. The role requires strong technical depth in Java/Spring Boot, AWS, EKS, and Oracle DB, combined with the ability to lead engineering direction, mentor teams, and ensure high‐quality delivery. By driving … Solution Design · Design and evolve cloud‐native billing solutions using microservices architecture, API‐first design, and scalable integration patterns. · Make key technical decisions across Java/Spring Boot services, AWS‐hosted workloads, EKS deployment models, and Oracle DB data design. · Ensure solutions are secure, scalable, supportable, and aligned to enterprise ...

cloud-native solutions, creating new microservices, and guiding the evolution of billing capabilities across complex enterprise systems. The role requires strong technical depth in Java/Spring Boot, AWS, EKS, and Oracle DB, combined with the ability to lead engineering direction, mentor teams, and ensure high-quality delivery. By driving … Solution Design· Design and evolve cloud-native billing solutions using microservices architecture, API-first design, and scalable integration patterns.· Make key technical decisions across Java/Spring Boot services, AWS-hosted workloads, EKS deployment models, and Oracle DB data design.· Ensure solutions are secure, scalable, supportable, and aligned to enterprise ...

Architecture, Data Warehouse, and building Semantic Models Strong SQL and data modeling skills Experience building and optimizing ETL/ELT pipelines Strong proficiency in Java and experience building distributed applications and services Experience with Kafka or similar event-streaming platforms Understanding of Data Governance, Data Quality, Security, and Privacy controls …/ELT Pipeline Optimization Data Governance and Quality CI/CD and Deployment Automation Hard Skills Data Engineering Big Data Technologies SQL Data Modeling Java Kafka Streaming Data Processing Observability Solutions Cloud-Based Analytics Agile Delivery Soft Skills Mentoring Technical Leadership Collaboration Industry Keywords Data Governance Data Quality Security Privacy ...

Frontend Quality Assurance Specialist At a Glance Individual contributor QA role at a high-growth prediction markets trading firm Core stack: Java, Python, FIX, SQL, Cucumber, Playwright, JUnit Competitive base salary plus discretionary annual bonus 3+ years experience required, financial services testing background preferred Central role in quality … role, ideally within financial services Experience with testing tools such as Cucumber, Playwright and JUnit, with familiarity in test reporting and analysis Proficiency in Java, Python, FIX and SQL Excellent communication, interpersonal and presentation skills, able to explain complex concepts to non‐technical stakeholders Ability to work independently and collaboratively ...

Citi is seeking an experienced software engineer in Belfast to architect and lead regulatory reporting pipelines using Java and Spring Boot. You will guide a team, onboard new regulations, and implement AI-driven automation while ensuring scalable, reliable data processing across big data stacks. The role emphasizes real-time streaming ...

Citi Belfast is hiring Experienced Backend Java Developers to contribute to, and in some cases lead, the design and development of core backend services. The role spans Assistant Vice President to Senior Vice President levels, with a hybrid working model (up to 2 days from home per week), a competitive ...

Citi Belfast is seeking Experienced Backend Java Developers to join our Technology team in Belfast. Roles range from AVP to SVP level, contributing to a variety of development activities and end-to-end lifecycle ownership. We offer a hybrid work model (up to 2 days home), competitive base salary ...

Citigroup Inc. in Belfast (Hybrid) seeks an experienced Java developer to design, implement and support trading platform applications. You will work on core services, APIs, and distributed systems with modern tooling, across multi-site teams. The role emphasizes REST APIs, authentication, messaging systems, and high-performance software, with a hybrid ...

scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Overview We are hiring Experienced Backend Java Developers at Citi Belfast. The role ranges from Assistant Vice President to Senior Vice President and focuses on contributing to, and in some cases leading … application systems development, analysis, and programming activities. Responsibilities Develop and maintain backend Java applications. Analyze business requirements and translate them into technical solutions. Design, implement, and optimize backend services and APIs. Collaborate with cross‐functional teams including product, data, and quality assurance. Participate in code reviews, system design discussions ...

## Experienced Java DevelopersApplyremote type: Hybridlocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26978652***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. … challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.***Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective ...