76 to 100 of 118 Java Jobs in County Antrim

systemic stability and drive informed, data-driven decision-making. Role Overview/What will you do Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful web services. Design, develop, and maintain robust microservices adhering to architectural best practices. Apply hands‐on expertise in Core Java … culture of excellence, collaboration, and continuous improvement. Key Skills and Experience required Experience in developing and implementing complex software solutions. Strong knowledge of Java/J2EE, Spring Boot, and RESTful web services (XML, JSON). Proven experience working with Microservices Architecture. Hands‐on experience with Core Java, Multi‐threading, Collections ...

Code Cursor Compound Engineering or similar approaches/tools Experience with agentic AI workflows and steering techniques for reliable automation Strong OOP skills using Java, Python or C# Experience with CI/CD pipelines and DevOps practices Knowledge of AWS, Azure or GCP Strong understanding of software engineering standards, architecture … context management Docker and Kubernetes Software security best practices and compliance Automated testing frameworks and QA processes AWS certification or equivalent cloud certification Skills: Java Python C# Claude Kiro Copilot RAG Benefits: hybrid Bonus Pension Enhanced Leave Private Medical/Dental Life Assurance Critical Illness Cover JBLE1 ...

## Full Stack Application Development Technical Lead (Java/Python), Vice PresidentApply: Hybrid: Belfast United Kingdom: Full time: Posted 3 Days Ago: End Date: October 2, 2026 (9 days left to apply): 26994336Are you looking for a career move that will put you at the heart of a global financial … priorities into measurable operational outcomes.**What you’ll do****Application Development Technology Lead is a senior level position responsible for*** Design, build, and enhance Java based backend services and Python enabled components for enterprise scale applications* Own end‐to‐end delivery of features from design through production rollout* Collaborate with ...

Front-end Web Developer to join Citi Tech in Belfast. You will build, test, and maintain web applications using React on the frontend and Java on the backend, collaborating with experienced developers to grow your software engineering skills in a team-centric environment. You will contribute to code reviews, testing ...

contribute to the ASPEN platform, participate in agile transformations, and help deliver secure, scalable solutions within a global tech group. The role emphasises Java/Angular development with Oracle databases, strong communication, and ability to perform under pressure while collaborating across teams. #J-18808-Ljbffr ...

seeking a motivated Front-end Web Developer to join our development team in Belfast. You will work with React on the frontend and Java on the backend to build, test, and maintain web applications. This role offers a collaborative environment and opportunities to grow in a global financial technology setting. ...

production, collaborating with Traders, Quants, and Global Technology to optimize latency in a hybrid Belfast setting. The role requires significant KDB+/q experience, Java and Python skills, and a strong background in low-latency systems. A bachelors degree is essential; hybrid work up to 2 days remote per week ...

join a Global team delivering real-time market data systems, with a focus on low-latency performance and scalable analytics. Strong KDB+/Q, Java and Python skills are required, along with Linux/UNIX expertise. The role offers hybrid work up to 2 days remote per week, a competitive ...

developer role. At least 2 years’ professional experience of Supporting and developing business systems using high-level programming languages such as C#.NET, Java, PHP or Classic ASP. Experience with modern CSS frameworks and styling libraries (Bootstrap, Tailwind CSS, Foundation) Demonstrable knowledge of relational databases and experience of developing applications with ...

deliver quality, business critical software.● Support operation of services in production. ****Core Competencies:**** ● 2+ years of systems programming experience in Rust, C, C++, Go, Java or a comparable language with enthusiasm to write production Rust (we will help you ramp up with dedicated mentorship!). ● Understanding of data structures ...

deliver quality, business critical software. Support operation of services in production. Core Competencies 2+ years of systems programming experience in Rust, C, C++, Go, Java or a comparable language with enthusiasm to write production Rust (we will help you ramp up with dedicated mentorship!). Understanding of data structures ...

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 ...

Description My client, a global technology organisation , is looking for a Back-End Software Engineer (Java) to join an established engineering team in Belfast . This is an excellent opportunity to become part of a collaborative team developing and enhancing large-scale backend platforms that support mission-critical enterprise applications … benefits package Strong career progression and learning opportunities You will join a global engineering function focused on building highly scalable backend services using modern Java technologies, cloud platforms and DevOps practices. The team develops secure, high-performance distributed systems, delivering new capabilities while continually improving reliability, automation and operational performance. ...

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 … escalating, managing and reporting control issues with transparency. Role Responsibilities Develop 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 ...

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. ...

solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. We are seeking a Java Developer for our Global Market Access EMEA development team. Sitting within the Equities cash business, the main function of the team is to build … behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency. Skills and Experience Previous commercial experience of software development using Java and Python, ideally gained within the Financial Services (or related) industry. Experience of applications support and maintenance. Able to demonstrate clear and concise written ...

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 ...

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 ...

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 ...

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 ...

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 ...