Design distributed authentication services for eBay using Java, Spring Boot, REST, and event-driven architecture. Help build cloud-native capabilities.

This Senior Software Engineer role focuses on production-grade backend applications and scalable distributed systems. You will create APIs and microservices supporting Authentication as a Service, extending eBay’s capabilities toward Depop and additional marketplaces. Your work includes architecture, implementation, deployment, troubleshooting, and continuous improvement.

Key Responsibilities:

- Develop Java and Spring Boot backend services and REST APIs
- Design scalable microservices and distributed system architectures
- Build asynchronous workflows with Google Pub/Sub or Kafka
- Contribute decisions on scalability, security,



and fault tolerance
- Own services through design, deployment, and troubleshooting

Requirements:

- Six or more years building production-grade software
- Solid Java experience or willingness to develop in Java
- Backend development experience with RESTful APIs and microservices
- Understanding of event-driven and asynchronous architectures
- Strong problem-solving and independent technical ownership skills

Use Java, Spring Boot, distributed systems, and event-driven design to shape eBay’s reusable authentication services.

📌 Senior Java Distributed Systems Engineer (Toronto)
🏢 eBay
📍 Toronto