Senior Java Engineer

A Senior Java Software Engineer is required by CareerWise Recruitment for our Galway based client. The Senior Java Software Engineer  will join R&D teams and collaborate with specialists across Data Engineering, Data Science, Firmware/IoT, DevOps, UX, and Product Cybersecurity to design, scale, and maintain resilient microservices powering millions of connected assets and global transport units in real time. This role is based ON-SITE Monday to Thursday, work onsite with your colleagues & Fridays, choose your work location, balancing what your work requires.

THE ROLE:

• Architecture & Scalable System Design: Partner with Product Management, Technical Architects, and engineering peers to architect secure, stateless, and high-performance multi-tenant microservices and RESTful APIs capable of processing massive telematics streams.
• Core Backend Development: Deliver robust, maintainable, and production-grade code utilizing modern Java and Spring Boot, adhering to industry-leading design principles, code reuse patterns, and domain boundaries.
• Resilience & Quality Engineering: Establish automated testing standards (unit, integration, and performance benchmarking) and diagnose complex issues across distributed, asynchronous workflows.
• CI/CD & DevOps Automation: Collaborate closely with DevOps to build and maintain secure CI/CD pipelines, containerized environments, and cloud deployment lifecycles.
• Technical Leadership & Mentorship: Champion engineering excellence through constructive code reviews, architectural discussions, knowledge sharing, and active mentoring of junior and mid-level software engineers.
• Agile Collaboration: Drive features from concept to production within a fast-paced Agile Scrum framework, collaborating cross-functionally across firmware, cloud services, and user interfaces.

REQUIREMENTS:

• Java & Enterprise Ecosystem: 5+ years of hands-on software development experience with Java (Java 17/21+) and the core Spring framework (Spring Boot, Spring Security, Spring Data).
• Distributed Architecture & APIs: Demonstrated experience designing, implementing, and documenting RESTful APIs and stateless microservice architectures.
• Data Persistence & Relational Databases: Strong expertise in relational database modeling, complex SQL querying, indexing, and query optimization (e.g., PostgreSQL, MySQL, or Oracle).
• Testing & Quality Mindset: Proven background in test-driven practices, automated testing frameworks (JUnit, Mockito, Test containers), and robust error-handling design.
• DevOps & Tooling: Proficient with Git, standard build tools (Maven or Gradle), containerization concepts (Docker), and automated CI/CD pipelines.
• Operating Systems: Comfortable navigating and troubleshooting across both Linux/UNIX and Windows development and server environments.
• Agile Mindset & Communication: Excellent interpersonal, verbal, and written communication skills with proven autonomy in cross-functional Agile Scrum teams.

ADDED DESIRABLE SKILLS:

• Cloud-Native Platforms: Practical experience building and deploying cloud infrastructure on AWS (e.g., ECS/EKS, Lambda, SQS, SNS, S3, RDS) or Azure.
• High-Throughput Streaming & Messaging: Familiarity with message brokers or event streaming platforms (e.g., Apache Kafka, RabbitMQ, MQTT) and IoT/telematics data pipelines.
• Multi-Tenant SaaS: Experience building multi-tenant data isolation and role-based access control (RBAC) models for enterprise SaaS.
• Front-End Familiarity: Working understanding of modern front-end technologies (e.g., React, TypeScript, HTML5/CSS3) for seamless full-stack feature collaboration.
• Observability & Scripting: Experience with observability stacks (Prometheus, Grafana, Open Telemetry, Datadog) and automation via Bash/Shell scripting.

Please call Tom Devaney for further information on 091-758771 or email: tdevaney@careerwise.ie

CareerWise Recruitment (In Search of Excellence)

Established in 1999, CareerWise Recruitment specialises in recruitment of management and technical professionals for the Pharmaceuticals, Life Sciences, ICT, Engineering, Food and Agri Sectors. 

We operate out of multiple locations in Ireland and have offices in Cork, Shannon, Galway, Mayo and Dublin.

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