Java Jobs in Northern Ireland

1 to 25 of 80 Java Jobs in Northern Ireland

Java / Spark Developer (Belfast)

Belfast, County Antrim, United Kingdom
FPSG
Java Developer Permanent - Belfast City Hybrid 60/40 FPSG's client is a rapidly growing Global Technology Consultancy. They have a reputation of making a difference, spinning up bespoke teams, with autonomy and creativity, embedded in market leading organisation. This particular squad environment needs strong software engineer with excellent … bigdata awareness. Skills required - core Java, Apache Spark, strong database skills and the ability to adapt to improve. To progress in this role candidates must be able to demonstrate their abilities through participating in several major projects, delivering on complex Core Java development with Spark where Big Data/enterprise … prescriptive, and all development will follow an iterative fashion and engagement with various stakeholders; Business Analysts, Product Owners, Users etc. Person Specification Strong Core Java concepts/Java server-side development Demonstrable experience in Spring, Spring Boot and Hibernate Familiarity with Big Data concepts A demonstrable working knowledge of Apache More ❯
Employment Type: Permanent
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Java Engineer

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
PA Consulting Services Ltd
the right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: Java, Java OOPS, Java 8 Cloud technologies: AWS What you can expect ?? Apply object-oriented programming principles in Java to design and implement robust and scalable … still apply as we are often hiring for similar roles which your background might be better suited to. Minimum of 2 years' experience in Java software development Deep understanding of multi-threading concepts and performance optimisation. Proven ability to design, implement, and deliver complex software solutions. You thrive in problem More ❯
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Senior Java Engineer

Belfast, Northern Ireland, United Kingdom
Hayward Hawk
Senior Java Engineer Belfast (Hybrid) Were looking for an experienced Senior Java Engineer to join an exciting data-driven project! This role involves active development (no support work) on a batch data processing platform, working across both greenfield and existing project streams. Some elements of the work will also involve … moving from Oracle to big data technologies. Key Requirements: Extensive Java Development Experience Strong knowledge of Java 11+ and modern Java frameworks Experience writing efficient, scalable, and high-performance Java applications Familiarity with multithreading, concurrency, and distributed computing Big Data & Distributed Systems Knowledge: Strong understanding of how distributed systems function … Performance tuning for Spark-based applications Database & Storage Experience: Comfortable working with relational databases (e.g., Oracle, PostgreSQL) Exposure to big data storage solutions Skills: Java spark java More ❯
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Java Developer

Ballymena, Northern Ireland, United Kingdom
Ocho
Java Software Engineer Ocho Galgorm, Northern Ireland, United Kingdom (Hybrid) Graduate/Junior Java Developer - Java/Node.js - Ballymena/Hybrid - Up to £45k + Bonus About the Company: Join a fast-growing software solutions company based in Ballymena, working with a diverse portfolio of clients-from innovative local businesses … delivery, and creating an environment where graduate and junior engineers can thrive. The Role: This is an exciting opportunity for a Graduate or Junior Java Developer to join a collaborative engineering team. You'll work on impactful software projects across industries like healthcare, e-commerce, and manufacturing, using technologies such … as Java, Node.js, and modern JavaScript frameworks. Whether you're fresh out of university or have some commercial experience, you'll receive technical mentorship, support, and the opportunity to grow into a well-rounded developer. Key Responsibilities: * Build and maintain full stack web applications using Java and/or Node.js More ❯
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Senior Staff Software Engineer

Belfast, UK
Visa
You have payments related SME knowledge in one or more of the following industries - Banking, Fintech, Retail, Healthcare, Insurance. You have expertise of Core Java, JEE technologies, Web technologies, JavaScript and container based technologies. Proficient in Web Services/API Development using SOAP or REST, JSON and XML. Proficient in More ❯
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Senior Staff Software Engineer In Belfast, Northern Ireland, United Kingdom

Belfast, Northern Ireland, United Kingdom
Visa Inc
You have payments related SME knowledge in one or more of the following industries - Banking, Fintech, Retail, Healthcare, Insurance. You have expertise of Core Java, JEE technologies, Web technologies, JavaScript and container based technologies. Proficient in Web Services/API Development using SOAP or REST, JSON and XML. Proficient in More ❯
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Junior Solution Architect

Belfast, UK
PA Consulting
across multiple platforms and technologies. Demonstrated expertise in architecting cloud-based or hybrid systems. Technical Skills : Proficiency in one or more programming languages (e.g., Java, Python, C#). Strong understanding of cloud platforms (e.g., AWS, Azure, Google Cloud) and cloud-native architectures. Experience with APIs, microservices, containerization (Docker, Kubernetes), and More ❯
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Solution Architect (Mid Level)

Belfast, UK
Hybrid / WFH Options
PA Consulting
across multiple platforms and technologies. Demonstrated expertise in architecting cloud-based or hybrid systems. Technical Skills : Proficiency in one or more programming languages (e.g., Java, Python, C#). Strong understanding of cloud platforms (e.g., AWS, Azure, Google Cloud) and cloud-native architectures. Experience with APIs, microservices, containerization (Docker, Kubernetes), and More ❯
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Solution Architect (Mid Level)

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
PA Consulting Services Ltd
across multiple platforms and technologies. Demonstrated expertise in architecting cloud-based or hybrid systems. Technical Skills: Proficiency in one or more programming languages (e.g., Java, Python, C#). Strong understanding of cloud platforms (e.g., AWS, Azure, Google Cloud) and cloud-native architectures. Experience with APIs, microservices, containerization (Docker, Kubernetes), and More ❯
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Senior Java Developer (Spark)

Belfast, Northern Ireland, United Kingdom
Hayward Hawk
Do you dream in Java? Do you get excited about distributed systems? Does the idea of tackling greenfield projects make you excited? The Gig: Were on a mission to build a next-levelplatforma mix of shiny new greenfield work and some exciting enhancements to existing systems. No boring support workjust … pure, hands-on development withcutting-edge tech. The Tech Stack: - Java (11+) Youve got strong, commercial, hands-on experience - Spark Ideally, youve dabbled (or mastered) - Finance/Banking experience? Cool, but not a deal-breaker The Perks: - A modern Belfast office Close to great food, good coffee, and (more importantly … working together -Top-tier clients Youll be working on high-impact projects with some of the biggest names in finance & tech If you love Java, Big Data, and solving real-world challenges, then this is your chance to make an impact while working with a fantastic, high-performance team. Interested More ❯
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Senior Software Engineer

Belfast, Northern Ireland, United Kingdom
DailyPay Inc
in Golang What You Bring to The Team: 4+ years software development experience with at least 2 years working with strongly-typed languages (Go, Java, C, etc.) Demonstrated proficiency writing maintainable, high quality, robust code Experience in designing and developing micro services in one or more cloud computing services (AWS More ❯
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Senior Software Engineer

Belfast, UK
DailyPay
in Golang What You Bring to The Team: 4+ years software development experience with at least 2 years working with strongly-typed languages (Go, Java, C, etc.) Demonstrated proficiency writing maintainable, high quality, robust code Experience in designing and developing micro services in one or more cloud computing services (AWS More ❯
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Senior Site Reliability Engineer

Belfast, UK
Hybrid / WFH Options
Workrise, Belfast
Kotlin, Temporal, SpringBoot, React.js, Typescript, Material-UI, Next.js Node.js, MongoD, PostgreS and Kafka. If you have production scale experience in a different stack (Go, Java, Python, Scala, C#, etc.) and are interested in moving to a new stack, we should chat! Who you are: You're a hands-on developer More ❯
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Software Engineer (Assistant Vice President)

Belfast, United Kingdom
Citigroup Inc
s degree in computer science or engineering field involving software programming or systems engineering Hands-on professional software development experience Proficiency in programming in Java, Python, JavaScript or React Hands on experience of building RESTful APIs using popular frameworks like Spring Experience of following TDD and clean code principles Proficiency More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer Placement 2025

Belfast, Northern Ireland, United Kingdom
Intapp
skills and welcomes the opportunity to collaborate in a tight knit, agile team-oriented group. Strong coding ability within Object oriented languages such as Java, C# or C++ A passion for software engineering; examples of work you have completed outside of the core curriculum is a plus. A strong desire More ❯
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Senior Software Engineer

Antrim, Co. Antrim, UK
Randox Food Diagnostics
Leading development and software project delivery. Any one of WPF, WinUI, Blazor, MAUI, Xamarin, Avalonia, Flutter, Electron, React Native A second programming language. (Python, Java, C++) Communicating with and controlling embedded devices using wired and wireless communication protocols Using an ORM NET Core, ASP.NET Core Web API Coding mathematical algorithms More ❯
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Chief Software Engineer

Belfast, Northern Ireland, United Kingdom
Visa Inc
scalable, resilient and secure distributed applications. *Software engineering experience in both on-premises and cloud environments. *Proficiency in one or more modern programming languages (Java, Python). *Hands-on experience in software product development utilizing technologies, tools, and frameworks such as Tomcat, TC Server, VertX, Spring, GIT/Stash, Sonar More ❯
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Senior Java Developer

Belfast, UK
FD Technologies
Description Are you a technologist who has a hunger to dig deep and get involved in providing first-class solutions to real-world problems? Java Software Engineer - Belfast First Derivative is a people-first company. We are powered by our ever-growing teams of specialist problem-solvers and process-evolvers. … a variety of projects across Greenfield, Front Office, Data/Cloud Migration, Regulatory Reporting, Trade Reconciliation and more! Our main tech stack includes: Core Java (version 8 or higher) Spring Framework/Spring Boot Object Oriented design principles and patterns CI/CD tools such as Jenkins Microservices architecture, including … AWS Lambda, Cloud Functions, etc. JPA frameworks such as Hibernate and SQL Agile methodologies What experience will you need? Core Skills: Proficiency in Core Java with a focus on performance tuning and optimization. Strong experience with relational databases (eg. PostgreSQL) and NoSQL databases (MongoDB). Experience in database migration from More ❯
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Senior Automation Test Engineer

Belfast, UK
Hybrid / WFH Options
Version 1
testing, exploratory, systems integration and user acceptance testing e.g. manual testing. Confident with building and maintaining frameworks in one or more of these languages: Java, JavaScript, Python, or C#. Have practical experience with open source tools such as: Cypress, Karate, PlayWright, Selenium or similar. Worked in an agile environment. Develop More ❯
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Senior Software Engineer

Antrim, Northern Ireland, United Kingdom
Randox Laboratories
Leading development and software project delivery. Any one of WPF, WinUI, Blazor, MAUI, Xamarin, Avalonia, Flutter, Electron, React Native A second programming language. (Python, Java, C++) Communicating with and controlling embedded devices using wired and wireless communication protocols Using an ORM NET Core , ASP.NET Core Web API Coding mathematical algorithms More ❯
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Software Engineer in Test Integration

Belfast, Northern Ireland, United Kingdom
CME Technology Support Services Ltd
Continuously improve the test automation framework and processes. Contribute to improving team processes and methodologies and following best practices. Essential Criteria Competent in Python, Java or alternative object orientated language(s). Competent working in a Linux command line driven environment. Experience of writing and refactoring both manual and automated More ❯
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Java / Spark Developer (Bigdata)

Belfast, Northern Ireland, United Kingdom
Hybrid / WFH Options
Synechron
platform and will include moving from Oracle to big data. The role is active development with no support. We are looking for experienced Bigdata Java/Spark Developers to join the project. This is a multi-years project. Role: Translate application storyboards and use cases into functional applications Design, build … and maintain efficient, reusable, and reliable Java code Ensure the best possible performance, quality, and responsiveness of the applications Identify bottlenecks and bugs, and devise solutions to these problems Develop high performance & low latency components to run Spark clusters Interpreting functional requirements into design approaches that can be served through … team Processing of data using Hive, Impala & HBASE Performing analysis of large data sets and derive insight Requirements: 5 to 7 Years of strong Java experience with Java 1.8 or higher version Strong Core Java & Multithreading working experience Experience in Big data technologies like HDFS, Hive, HBASE, Apache Spark & Kafka More ❯
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Senior Java Developer

Belfast, Northern Ireland, United Kingdom
Ocho
Senior Java Software Engineer Location: Belfast Employment Type: Full-time Compensation: Competitive The Company Join a forward-thinking technology team driving transformation and innovation. This is an opportunity to work on cutting-edge cloud, DevOps, and software engineering solutions, delivering high-impact projects across various industries. With a strong focus … quality and best engineering practices through code reviews and automated testing. Adapt to evolving project priorities and business requirements. What You'll Bring Strong Java development skills, including experience with Spring Boot, Spring MVC, and Hibernate. Experience in cloud environments and containerisation (e.g., AWS, OpenShift, Kubernetes, Docker). Understanding of … and remote options available. Collaborative Culture - A team-focused environment that values innovation and technical excellence. How to Apply If you're an experienced Java Software Engineer looking for an exciting opportunity, connect with Ryan Quinn on LinkedIn or submit your CV via the link below. Skills: Java DevOps Cloud More ❯
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Senior Software Engineer

Belfast, UK
Hybrid / WFH Options
TN United Kingdom
that values quality, robustness and knowledge sharing. Need to have: A minimum of 4 years post-graduate experience in the software industry. Expertise in Java, Kotlin, Typescript, or C#. Experience developing cloud native solutions in AWS, GCP or Azure. Experience in UI development in Angular, React or Vue. Experience developing More ❯
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25N/SESE - Senior Software Engineer

Antrim, County Antrim, United Kingdom
Randox Laboratories
Desirable: Leading development and software project delivery. Any one of WPF, WinUI, Blazor, MAUI, Xamarin, Avalonia, Flutter, React Native A second programming language (Python, Java, C++) Communicating with and controlling embedded devices using wired and wireless communication protocols Using an ORM NET Core, ASP.NET Core Web API Coding mathematical algorithms More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Java
Northern Ireland
10th Percentile
£47,000
25th Percentile
£50,000
Median
£55,000
75th Percentile
£60,000