Walmart's Advertising Technology data team is seeking a Senior Software Engineer to join their innovative team in either Sunnyvale, CA or Bentonville, AR. This role focuses on building and maintaining the foundational data platform for targeting and measurement systems within Walmart's advertising technology stack. The position offers a unique opportunity to work on large-scale solutions that impact millions of customers worldwide. As part of Walmart Global Tech, you'll be working in a hybrid environment where you can balance office collaboration with flexible remote work. The role combines technical leadership with hands-on development, requiring expertise in front-end technologies like React, TypeScript, and GraphQL. You'll be responsible for architecting solutions, mentoring team members, and ensuring the scalability and performance of advertising platforms. The position offers competitive compensation ranging from $117,000 to $234,000 in Sunnyvale, with comprehensive benefits including healthcare, 401(k), stock purchase options, and educational assistance. This is an excellent opportunity for experienced engineers looking to make an impact at scale while working with cutting-edge advertising technology.