**Position Summary...**
Role summary
The Senior Incident Response Engineer (Purple Team) will operate within a purple‑team driven program, focused on assumed‑breach and post‑access adversary activity to strengthen detection and response capabilities. This role leads threat-actor driven campaigns that measure real‑world defensive effectiveness and drive continuous improvement across production environments. Working closely with SOC, Detection Engineering, and risk stakeholders, the engineer translates campaign outcomes into actionable enhancements, validates remediation through retesting, and helps mature response processes. The role also collaborates with peers and advances scalable, measurable security practices aligned with organizational and industry standards.

**What you'll do...**
**About the team**
At Walmart, we believe it is essential to keep innovating while safeguarding our data. Our team ensures that Walmart maintains a secure operating environment and t...