The Java Developer position at Walmart involves designing and implementing scalable, secure, and robust microservices using Java and Spring Boot. The role requires participation in the full software development lifecycle, including requirement analysis, design, development, testing, deployment, and maintenance. Developers will write clean, maintainable, and well-documented code, optimize applications for performance and scalability, and work closely with DevOps, QA, and front-end teams to ensure seamless integration. Additionally, the role includes debugging and resolving production issues as needed while staying up to date with new technologies and best practices.