Intrusion Analyst III, Cybersecurity

Position Summary

The Intrusion Analyst III serves as an experienced security professional within Walmart’s Security Operations Center (SOC), responsible for performing in-depth investigations, refining triage quality, and mentoring entry-level analysts. This role bridges operational execution and analytical leadership — ensuring SOC workflows remain efficient, accurate, and responsive to evolving threats.

The Intrusion Analyst III independently conducts follow-on investigations, validates findings, and contributes to process improvements that enhance detection and response capabilities.

• Investigation Ownership – Lead follow-on investigations from escalated alerts to resolution, identifying root causes and impact scope.
• Quality Control – Review and validate triage work from Analysts II to ensure consistency and accuracy across incident handling.
• Threat Analysis – Identify and contextualize indicators of compromise using SOAR, SIEM, endpoint, and AI-assisted tools.
• Incident Response Support – Collaborate with senior analysts during containment and recovery phases, ensuring accurate data collection and response coordination.
• Process Refinement – Recommend improvements to triage workflows, documentation standards, and response playbooks.
• Cross-Functional Collaboration – Partner with detection engineering, threat intelligence, and infrastructure teams to share findings and improve visibility.
• Knowledge Sharing – Mentor junior analysts through shadowing, feedback, and informal training sessions.
• Reporting – Produce detailed investigation reports and summaries for senior review.

• Technical Depth – Demonstrates strong understanding of intrusion methods, network forensics, and incident response techniques.
• Critical Thinking – Applies structured analysis to evaluate alerts and data, identifying patterns and correlations across sources.
• Accountability – Takes ownership of assigned incidents and ensures timely Staples.
• Collaboration – Works effectively across functions, providing clear communication and actionable insights.
• Mentorship – Supports the development of Analysts II by modeling best practices and reinforcing operational standards.

• Proficient in SOC toolsets `SIEM`, `SOAR`, endpoint detection, and AI-assisted analysis platforms.
• Familiar with incident response frameworks (NIST) and adversary mapping (MITRE ATT&CK).
• Skilled in investigation techniques such as log correlation, memory analysis, and forensic review.
• Experience documenting findings and contributing to incident post‑mortems.
• Working knowledge of scripting, query building, or automation concepts to enhance analysis efficiency.

• Bachelor’s degree in Cybersecurity, Computer Science, or related field (or equivalent experience).
• 4+ years of experience in SOC operations, intrusion analysis, or incident response.
• Demonstrated ability to lead independent investigations and mentor junior team members.

Professional Development Certifications such as GCIH, GCIA, or CySA+ are recommended to broaden technical knowledge. Expected to progress toward Senior Intrusion Analyst (X4) through leadership in investigations and process improvement.

• Respect the Individual – Foster collaboration and provide constructive feedback to peers.
• Act with Integrity – Uphold security and ethical standards in all investigative actions.
• Serve Our Customers and Members – Protect systems and data by delivering timely, high-quality incident analysis.
• Strive for Excellence – Pursue technical growth, continuous learning, and innovation in detection and response.

The Intrusion Analyst III ensures Walmart’s SOC maintains high analytical quality and investigative rigor._Intending investigations, mentoring peers, and improving SOC efficiency, this role serves as the critical bridge between front-line execution and senior-level technical leadership.

Wal‑Mart is an Equal Opportunity Employer.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical,…