About Zinkworks
Zinkworks is a global leader in innovation, headquartered in Athlone, Ireland, with three offices locations worldwide. We utilise the latest cutting-edge technologies to bring industry-leading expertise to our Telecommunication and Financial services clients. We are adept at developing custom innovations that streamline our clients' workflows and improve operational efficiency. With a commitment to quality and customer satisfaction, we have earned a reputation as a trusted partner for businesses seeking reliable software services.
What We Are Looking For
We are looking for a Senior Backend Java Engineer to join our engineering team. This role is critical to designing and building scalable backend services that power AI/ML-driven rApps, KPI management, and large-scale ETL data pipelines. You'll work in an agile team, contributing to architecture decisions, writing high-quality code, and ensuring robust delivery through automation and testing.
Key Responsibilities
* Design & Development: Build, enhance, and maintain scalable microservices in Java (Spring Boot).
* Data Pipelines & APIs: Implement REST APIs and event-driven services (Kafka / PubSub) to support high-throughput CM/PM ETL pipelines and KPI jobs.
* rApp Enablement: Develop backend services to support rApp design, training, deployment, and lifecycle management.
* Performance & Reliability: Optimise services for scalability, latency, and fault tolerance.
* Collaboration: Work closely with frontend engineers, data engineers, and AI/ML specialists to deliver end-to-end features.
* Automation & Quality: Ensure code quality with automated tests, CI/CD pipelines, and static analysis tools.
* Architecture: Contribute to system design, state management, caching, and validation frameworks.
* Mentorship: Guide junior engineers and promote engineering best practices.
Must-Have
Required Skills & Experience
* Strong experience with Java, Spring Boot, and microservices architecture.
* Proven experience with Google Cloud Platform (GCP), including Pub/Sub, GCS, and BigQuery.
* Background in telecommunications / ORAN / KPI systems, familiarity with network data (CM/PM) and performance monitoring.
* Strong understanding of REST APIs, event-driven systems (Kafka / PubSub), and asynchronous communication patterns.
* Hands-on experience with SQL/NoSQL databases (e.g., Spanner, Firestore, PostgreSQL).
* Experience with CI/CD pipelines, automated testing (unit, integration, E2E, Karate).
* Solid knowledge of containerization and orchestration (Docker, Kubernetes).
* Experience with caching frameworks (Redis, Guava, or equivalent).
* Excellent debugging, profiling, and performance optimisation skills.
* Strong problem-solving, communication, and teamwork skills.
Nice-to-Have Skills
* Exposure to AI/ML workflows and model integration.
What We Offer
* A key role in a company that's a trailblazer in the telecom sector, offering significant opportunities for growth and leadership in marketing.
* The chance to work with a team of forward-thinking professionals committed to establishing Zinkworks' position at the forefront of telecom innovations.
* Competitive compensation, including health benefits, retirement plans, and performance incentives.
* An inclusive culture that fosters innovation, collaboration, and excellence.
Zinkworks is a trusted partner to Telecoms and Financial Services organizations around the world. We help modernize legacy systems, move mission-critical systems into the cloud, and exploit the power of AI-driven automation. Our people thrive in technically complex environments where our commitment to quality and our expertise in software innovation and cutting-edge technologies helps our clients prepare for the future, accelerate growth and improve operational efficiency. We build long-lasting relationships with our customers to accompany them through their innovation journey.