Senior Java Engineer ( SpringBoot, Microservice, Kafka)

Senior Java Engineer

We are urgently seeking a highly skilled Senior Java Engineer to join our client team based in Ireland on a hybrid working model. This is a subcontractor opportunity for a candidate who can demonstrate strong, current, and hands-on engineering expertise across the Java ecosystem. The successful candidate will be expected to contribute meaningfully from day one, working within a large-scale distributed services environment.

Mandatory    Strong Required    Nice to Have

OOP / Design Patterns Java (8+)

Spring Boot

Microservices

Kafka

OOP / Design Patterns

REST APIs

Distributed Systems

Git / CI-CD

Docker / Kubernetes

Cloud (AWS/Azure/GCP)

SQL / NoSQL Databases

•     Minimum 8 years of active, hands-on Java development — candidates must demonstrate current, working proficiency, not experience from several years ago.

•     Strong, up-to-date expertise in Java OOP principles, concurrency, and modern Java features; recent and regular practice is essential.

•     Proven, current hands-on experience with Spring Boot — candidates must be able to build and discuss Spring Boot applications confidently during technical evaluation.

•     Real-world coding experience in microservices architecture — candidates must be able to describe actual implementations and write microservices code; conceptual understanding alone is not sufficient.

•     Solid practical knowledge of Apache Kafka in a production setting, including producing, consuming, and managing topics — basic or introductory exposure will not meet the requirement.

•     Experience working in Agile / Scrum delivery environments.

•     Good communication skills and ability to collaborate effectively with onsite and distributed teams.

•     Design, develop, and maintain scalable backend services using Java and Spring Boot.

•     Build and evolve microservices within a distributed systems architecture.

•     Develop and maintain Kafka-based event-driven pipelines.

•     Conduct and participate in code reviews to uphold code quality standards.

•     Collaborate with architects, product owners, and cross-functional teams to deliver features end-to-end.

•     Contribute to technical documentation, design decisions, and best practices.

Submit your profile with a clear breakdown of your hands-on experience in Java, Spring Boot, Microservices, and Kafka — including specific projects and your direct contributions. Shortlisted candidates will be contacted promptly for a technical evaluation.

Send your CV to: [email protected]