Walmart Global Tech is seeking a Principal Software Engineer to join their Marketplace Engineering team, focusing on building core platforms and services that enable third-party sellers on walmart.com. This role is critical in developing highly scalable distributed systems that manage the entire seller lifecycle and deliver exceptional customer experiences. The position offers an opportunity to work with cutting-edge technologies like Java, Cassandra, and Kafka while leading complex architectural decisions and mentoring other engineers. Based in Sunnyvale, CA, this hybrid role combines the excitement of Silicon Valley with the impact of working for the world's largest retailer. The compensation package includes a competitive salary range of $143,000-$286,000, plus performance bonuses and comprehensive benefits. This is an excellent opportunity for experienced engineers who want to make a significant impact on retail technology while working with a world-class team.