About the Role

We are seeking a Senior Java Backend Engineer to join our team building scalable, high-performance systems for merchant and catalog platforms. You will design and develop microservices, implement real-time event-driven pipelines, and contribute to system architecture for a global-scale enterprise.

Responsibilities

• Design and develop scalable microservices using Java & Spring Boot.
• Build and optimize real-time event ingestion pipelines with Kafka and Spark.
• Develop REST APIs with authentication and security best practices.
• Implement retry, failover, and circuit breaker patterns to ensure system resilience.
• Collaborate in system design reviews, code reviews, and architecture discussions.
• Monitor system performance and ensure high availability using observability tools.
• Contribute to CI/CD pipelines and deployment strategies across cloud environments.

Requirements

• 10+ years of experience in backend development with Java & Spring Boot.
• Strong expertise in Kafka and event-driven architecture.
• Hands-on experience with both SQL (PostgreSQL) and NoSQL (MongoDB) databases.
• Experience with Spark (batch or streaming) for large-scale data processing.
• Solid knowledge of CI/CD tools (Jenkins, Terraform, etc.).
• Experience with cloud platforms (GCP, AWS, or Azure).
• Familiarity with Kubernetes, Docker, and container orchestration.
• Strong problem-solving skills in distributed systems, scalability, and fault tolerance.

Preferred Skills

• Experience with system design patterns (fan-out, circuit breaker, retry mechanisms).
• Knowledge of monitoring tools (Grafana, Prometheus, CloudWatch, Splunk).
• Background in real-time feed processing and high-throughput systems.
• Exposure to multi-cloud or hybrid cloud deployments.

Job Title: Senior Java Backend Engineer (Spark Experience Required)

Location: Sunnyvale, CA

Team: Walmart – Sam’s Club

Type: Contract

Openings: 2