23 of 23 Java Jobs in County Antrim

for someone who thrives on tackling complex challenges, developing people, and crafting scalable, cloud native systems across a range of modern technologies. Our Technology Landscape Languages:JavaScript/TypeScript, Java, C# Frameworks:React, Angular, Vue, Node.js, Next.js, Spring Boot, .NET Cloud Providers:AWS, Azure, GCP CI/CD Tools:GitHub Actions, Jenkins, Azure DevOps Infrastructure as Code:Terraform, Cloud Formation More ❯

for using the right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure CI/CD:Jenkins, GitHub Actions, Azure More ❯

for using the right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure CI/CD:Jenkins, GitHub Actions, Azure More ❯

degree (with honours) or equivalent/better strongly preferred, but substantial relevant experience could substitute Passion for developing high-quality, reliable, and efficient software solutions Strong knowledge of core Java skills, with demonstrable experience Experience coding in a story-driven, agile environment Strong knowledge and experience of SDLC methodologies; agile is a big advantage. Expertise in Object Oriented Design and More ❯

for using the right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms: AWS, GCP, Azure CI/CD:Jenkins, GitHub Actions, Azure More ❯

Supporting activities during the project discovery phase. Required experience and skills: Hands on software engineering skills using various platforms and tools. JavaScript/Typescript experience. Any experience in C#, Java or Python will be beneficial. Experience with both Front End frameworks (React, Vue, or Angular) and Server Side JavaScript/TypeScript (Node.js/Next.js) will be advantageous. DevOps and CI More ❯

Java Developer Hybrid (Belfast) | 6-Month Contract | Inside IR35 Our client, a leading organisation within the financial services sector, is seeking an experienced Java Developer to join their Belfast-based technology team on an initial 6-month contract (Inside IR35). This is an excellent opportunity to work on high-performance, data-driven applications within a fast-paced enterprise environment. … The successful candidate will play a key role in developing and optimising complex batch processing and integration systems using Java 17, Spring Batch, Spring Integration, and GridGain Database. Key Responsibilities Design, develop, and maintain scalable Java 17 applications for enterprise data processing. Build and optimise batch processing solutions using Spring Batch. Design and implement integration flows with Spring Integration. Develop … deployment and operational tasks in Unix/Linux environments. Collaborate with cross-functional technical and business teams to deliver high-quality, reliable solutions. Skills & Experience Required Strong proficiency in Java 17, including modern Java features and best practices. Proven experience with Spring Batch and Spring Integration. Solid understanding of Unix/Linux scripting and SQL. Hands-on experience with GridGain More ❯

testing frameworks, pipelines, and CI/CD integration What we’re looking for: Experience in QA or software engineering with a focus on test automation Proficiency in JavaScript, Python, Java, C# , or Go Hands-on experience with Cypress , Playwright , or Postman/Newman Exposure to CI/CD tools and agile delivery environments A self-driven mindset with curiosity for More ❯

Ensure high availability and performance of NSO platforms. Key Experience and Skills: Hands-on experience with Cisco NSO in complex, multi-vendor environments. Strong experience with YANG modelling, XML, Java and/or Python service packages. Experience with Cisco pyATS as an automation testing framework. Proficient with Linux systems, scripting and troubleshooting. Experience with version control (Git), CI/CD More ❯

to help win new projects The brief in short: Tech Lead/Engineering Lead experience – leading pods of around 3–6 engineers Strong, recent hands-on coding in .NET, Java, or Python (not just oversight) Deep experience in cloud architecture and infrastructure , (AWS or Azure, Terraform, Kubernetes, CI/CD) Proven ability to re-architect or modernise platforms – ideally moving More ❯

built in any modern framework, whether that's Node with tools like Express or NestJS, or one of the many MVC flavours of frameworks in .NET/Rails/Java, etc. Working on modern webapps, built with tools like React or Angular. NoSQL experience with services like DynamoDB, or MongoDB. Database design with query and performance optimisation. End to end More ❯

Java Software Engineer – Multiple Roles (Junior to Senior) Want to work with one of Northern Ireland’s fastest-growing tech companies? Looking for a team where your input genuinely shapes the architecture and direction of projects? How about working on greenfield builds using the latest Java and cloud technologies every day? The Role You’ll be developing high-quality, scalable … Java solutions as part of a small, talented engineering team. From day one, you’ll be hands-on — writing clean, testable code, designing APIs, and contributing to technical decisions that make a real impact. This is a collaborative environment where engineers are trusted to deliver, experiment, and grow. What’s In It For You? • Negotiable salaries (depending on experience — typically … encouraged • A genuine focus on work-life balance • A tight-knit team of engineers who love what they do and push each other to be better Technical Skills Strong Java experience (2+ years) Hands-on with Spring Boot and Microservices Architecture AWS services (EC2, RDS, S3, EKS, CloudFront, etc.) Works well independently and as part of a close team Nice More ❯

love to hear from you. Experience working with data: wrangling, cleaning, and transforming datasets for analysis. Familiarity with tools such as Alteryx, DataRobot, SAS, Databricks, SPSS, R, Python, Scala, Java, or Spark. Exposure to data visualisation platforms like Tableau or Power BI. Understanding of machine learning concepts and algorithms (e.g. classification, clustering, regression). Interest in or experience with Natural More ❯

environment setup, and documentation of changes. Ensure all deliverables meet performance, scalability, and compliance requirements. Work collaboratively across technical and delivery teams to ensure timely and quality outcomes. Skills Java Linux Windows What You Can Expect From Us Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here More ❯

software solutions for both internal and external stakeholders across global financial and commodities markets. This is an ideal position for an experienced engineer with strong proficiency in C# or Java, a passion for quality and testing, and a desire to be part of a modern, forward-thinking development culture. The Opportunity As a Senior Engineer, you will join a high … risks and blockers early to minimise delivery delays. Essential Skills & Experience: Degree in Computer Science or relevant industry experience. Proven software development experience with C# .NET and/or Java . Solid understanding of secure coding practices and API architecture . Strong focus on software testing and quality assurance . Experience with git-based source control and CI/CD More ❯

data synchronisation layer that will underpin a planned trading platform launch in 2026. The Role: They are forming the first core engineering pod in Belfast starting with a Senior Java Developer who will define technical direction and engineering standards, followed by two mid-level developers. This pod will be responsible for designing and implementing a high-performance exchange connector layer … high-quality solutions. Contribute to software design standards, code quality practices, and architectural decisions as the hub scales. Ideal Candidate Profile (Initial Senior Developer) Strong back-end development experience Java preferred for the senior role. Mid-level hires may come from other back-end language backgrounds if they can learn Java quickly. Demonstrated experience tuning and optimising performance on the More ❯

Java Developer Hybrid (Belfast) 6-Month Contract Inside IR35 Our client, a leading organisation within the financial services sector, is seeking an experienced Java Developer to join their Belfast-based technology team on an initial 6-month contract (Inside IR35). This is an excellent opportunity to work on high-performance, data-driven applications within a fast-paced enterprise environment More ❯

Software Engineer (C#, Java, Server-Side Development) Location: Belfast/Remote (Onsite for the odd get together a few times a month) Employment Type: Full-time, Permanent Salary: Competitive, DOE About The Role We're looking for an experienced Software Engineer with strong C#, Java, and server-side development skills to join a global fintech company. You'll design and … secure, scalable back-end solutions that support key business applications. Key Responsibilities Deliver technical solutions based on customer needs and requirements Design and develop server-side applications using C#, Java, and related web technologies Work with databases to build efficient and reliable back-end systems Identify opportunities to simplify and improve existing processes Analyse issues, evaluate solutions, and communicate findings … Mentor junior developers and support team development Contribute to recruitment, including technical interviews Essential Skills & Experience Degree in Computer Science or equivalent professional experience Strong commercial experience with C#, Java, or similar OOP languages Proven server-side development experience Good understanding of database design and development Solid knowledge of OOP, refactoring, and design patterns Strong analytical and problem-solving skills More ❯

team shaping the future of digital agriculture by developing cutting-edge digital solutions that make a real difference to customers. We are looking for full-stack engineers coming from Java/Angular background where you will: Develop & Improve Features - Design and build solutions that make a real impact for users. Take Ownership - Drive the full development lifecycle, delivering clean, maintainable … Strong focus on quality, reproducibility, and delivering reliable, maintainable solutions. Collaborative mindset with excellent problem-solving skills. Good communication skills in English, both written and spoken. Technology Stack Backend: Java, Spring Framework, PostgreSQL Frontend: TypeScript, Angular DevOps & Tools: Docker, Azure DevOps, Git, Jenkins, SonarQube You’ll be joining at an exciting time, with an ambitious roadmap and plenty of innovation More ❯

related field, Master’s degree a plus 7+ years of software development experience including Strong portfolio of work showing experience developing secure and standards-compliant code across multiple platforms. (Java, Microsoft stack as well as Open Source technology) Solid conceptual knowledge of design patterns and language agnostic design experience Test driven development mindset and strong discipline of writing extensive tests … Cassandra or Cosmos DB or other NO SQL databases Experience with multi-tenant architectures in the SaaS space Fluent in several of the following languages/platforms/libraries: Java and .NET Strong understanding of API’s and web service concepts such as REST, SOAP, and XML/JSON business object representations Experience developing API's utilizing REST architecture Ability More ❯

Senior Backend Engineer - Golang/Java Belfast, Northern Ireland Hybrid Schedule (M/F remote, T/W/TH in-office) If you enjoy working in a collaborative environment, learning new technologies, mentoring others, and developing software that shapes the future of audience targeting, we'd love to meet you. In this Backend Engineer role, you'll help design … or other cloud platforms Familiarity with SQL and NoSQL data stores Implementing caching systems as part of a solution Mentoring teammates is a plus *Our Current tech stack* Golang, Java ECS, Fargate, Docker, ALB, HAProxy RDS, MariaDB, DocumentDB, Postgres, ScyllaDB Redis, Memcache Kafka, SNS, SQS Terraform, Github Actions, Jenkins Comprehensive Perks And Benefits Holiday Breaks and Quarterly Wellness Days Equity More ❯

business value. Responsibilities: Collaborate on pre-sales engagements: assessments, proposals, orals, and business case creation. Design modernization paths from legacy systems (COBOL, z/OS, etc.) to modern stacks (Java, MSA, cloud). Lead effort estimation, tool strategy selection, and transformation approach definition. Provide architectural oversight during execution to ensure value realization. Participate in tooling evaluations and PoCs involving GenAI … architecture, with at least 3 years in modernization. Proven ability to assess legacy estates and define future-state architectures. Proficiency in mainframe tech (COBOL, DB2, CICS) and modern stacks (Java, Spring, microservices). Exposure to GenAI use cases in application engineering and code conversion. Strong client communication, technical documentation, and stakeholder alignment skills. Nice-to-Have Skills Description: Java, Python More ❯

grown success story, recognised in the Deloitte Fast 50 and multiple industry awards for product innovation and customer support. Key Responsibilities Develop and maintain Android applications using Kotlin and Java Deploy applications to Google Play and support release processes Integrate RESTful web services and APIs Collaborate with product, QA and design teams to enhance user experience Participate in testing, troubleshooting … and optimisation of mobile and web applications Qualifications and Skills Approx. 4+ years’ commercial Android development experience Strong knowledge of Kotlin , Java , RESTful APIs , JSON Proven experience with Google Play deployment Experience with Android/web app testing frameworks Strong problem-solving mindset and clean coding practices Interested? Apply now or get in touch for a confidential chat. More ❯