Senior Incident Response Engineer (purple Team)

Walmart Walmart · Retail · HERNDON, VA TECH FACILITY VA Herndon, Bentonville, AR

Senior Incident Response Engineer (Purple Team) to 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'd actually do

  1. Execute a variety of campaigns (assume breach, fraud, Adverserial AI, Atomic, transparent / collaborative)
  2. Develop, curate, and leverage offensive security TTPs and threat intelligence
  3. Manage and configure campaign infrastructure
  4. Provide ongoing consulting to defense teams as they design and implement responses to campaign findings

Skills

Required

  • Knowledge of fundamental computing concepts
  • Proficiency in vulnerability assessment, penetration testing, and threat modeling
  • Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 3 years’ experience in incident response or related area at a technology, retail, or data-driven company.
  • 5 years’ experience in incident response or related area at a technology, retail, or data-driven company.

Nice to have

  • Certifications in Security+, Network+, GISF, GSEC, CISSP, CCSP, or GCIH
  • Master’s degree in Computer Science, Information Technology, Engineering, Information Systems, Cybersecurity, or related area
  • 1 Years' Exposure of leading/ working on Information Security / Cyber Security Projects
  • knowledge of accessibility best practices
  • CISSP - Certified Information Systems Security Professional - Certification

What the JD emphasized

  • An understanding of AI technologies