26 to 45 of 45 Java Jobs in County Antrim

Citigroup Inc. is seeking a Senior Software Engineer (Java or Python) to help shape next‐gen financial software. You will engage in full‐stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‐native solutions with modern JS frameworks. You will also explore Gen‐AI concepts ...

## Full Stack Application Development Technical Lead (Java/Python), Vice PresidentApplylocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todaytime left to apply: End Date: August 19, 2026 (13 days left to apply)job requisition id: 26951606Are you looking for a career move that will … 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 ...

providing great business benefit. This role is for a developer position responsible for accomplishing results through hands on development/bug fixes of our Java application. The overall objective of this role is to drive applications development through programming activities. Responsibilities Platform Support & Enhancement: Build and maintain common solutions … meet performance and scalability requirements Comfortable in using AI based coding assistants and AI powered SDLC processes Mandatory Skills Strong commercial experience as a Java developer. This will be tested during interview stage Experience in REST API and authentication mechanisms (OAuth/Basic Authentication) Messaging Systems experience ...

trading platforms. You will design test plans, implement automation, and collaborate with development and production teams to ensure robust releases. The role requires strong Java skills, hands-on experience with Selenium or Cypress, and familiarity with CI/CD, TestNG and SQL. A hybrid work arrangement is offered with generous ...

software developer to design, develop, and maintain critical software on a scalable platform. The ideal candidate will have 7-11 years of experience in Java and Golang, along with a solid foundation in data structures and algorithms. This role offers a competitive salary range of $150,000 – $226,000 along ...

helping resolve issues or blockers and provide general leadership to team. Key Skills and Experience required: Very strong software development experience. Strong knowledge of Java and RESTful web services. Experience in developing performant code and a solid understanding of Java threading. Experience working with git based source code management. Good ...

Role: Java Developer Type: PERM/FTE Location: Belfast, Northern Ireland Working Model: Hybrid (3 days per week in office) 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. Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering ...

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 ...

base code and drive improvement. Work alongside Site Reliability Engineers and cross‐functional teams to diagnose/troubleshoot any production performance related issues. Use Java, Golang, and Python. Build systems on Docker, Kubernetes, MongoDB, ELK, TimescaleDB, GCP Stackdriver, GCS, Cloud Composer, and AI Platform. About You Desire to build products … that solve complex technical problems for end users. 7‐11 years experience developing highly scalable distributed applications, products, and services in Java and Golang. Design and develop REST, gRPC, and GraphQL APIs. Working knowledge of SQL and No‐SQL database technologies. Solid foundation in data structures, algorithms, and software design ...

engineering team, supporting large-scale software solutions. The successful candidate will guide the team through the software lifecycle, focusing on modern technologies like C#, Java, and cloud platforms. The position offers hybrid working and opportunities for significant influence in technical direction and team culture. #J-18808-Ljbffr ...

Role: Java Developer Type: PERM/FTE Location: Belfast, Northern Ireland Working Model: Hybrid (3 days per week in office) Core Responsibilities: Develop: Architect and maintain robust Java-based microservices leveraging Spring and SpringBoot frameworks click apply for full job details ...

Citi is seeking a Java Developer AVP in Belfast for a hybrid role (up to 2 days at home per week). You will help build and maintain Java applications that power our trading platforms, focusing on performance, reliability and scalable REST APIs with secure authentication. Work with global teams ...

Oracle Ledger Program, building both frontend interfaces and backend services to meet evolving business requirements. Build and enhance common services and user interfaces using Java, Angular or React, and REST APIs, ensuring high-quality, scalable, and maintainable code. Lead the full development lifecycle across analysis, design, construction, testing, and implementation … mentoring less experienced developers. Required Qualifications & Skills Experience in software development, with a strong focus on full stack engineering across enterprise applications. Proficiency in Java for backend development, with demonstrated experience building and consuming REST APIs in production environments. Hands-on experience with Angular or React for building responsive, user ...

world 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 … assist/lead in applications systems development, analysis and programming activities.We are seeking candidates who have the following Skillset:Experience held in Core Java (all editions)Knowledge of end to end lifecycle of an applicationFor more senior level roles, we would require leadership experienceDo you think you could add value ...

Citi Belfast is seeking a Full Stack Application Development Technical Lead (Java/Python) to lead end-to-end delivery of enterprise-scale features. You will design, build, and enhance Java-based backend services and Python-enabled components, collaborating with global teams to meet regulatory and transformation priorities. The role … requires strong Java experience, frontend exposure, and a willingness to ramp up Python as needed. #J-18808-Ljbffr ...

Engage in Greenfield Projects Daily Technologies: AWS Angular Java React ASP.NET NodeJS Cloud C# Support JavaScript Years of Post-graduate Engineering Experience Ability and desire to work with various technologies across multiple projects, including Java, .NET, React, Angular, Node.js, and AWS Proven experience of working in a small team Excellent ...

Java Script Works in Belfast seeks a Lead Automation Engineer with 8 years of experience in software engineering or QA automation. The role requires strong coding skills in TypeScript, Java, or Python, and hands-on experience with UI and API test tools including Playwright, Cypress, Postman, and Selenium. The position ...

Citi is hiring for a Java developer role within its technology wing. The role focuses on building and maintaining scalable trading platform solutions, with emphasis on REST APIs, messaging systems, and distributed architectures. The team operates in a hybrid model with exposure to global teams and modern SDLC practices. ...

## Equities Technology (Low Latency Developer) - VPApplylocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26977601Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence ...

Lead Automation Engineer Location: Belfast, United Kingdom Posted 9 months ago Job posted by our partner Jooble Tech Stack Python API TypeScript UI Automation Java Selenium QA Automation Requirements 8 years' experience in software engineering or QA automation Strong coding skills in a modern language (TypeScript, Java, Python) Hands ...