Principal, Software Engineer, Information Security

Position Summary

Principal Software and Infrastructure Engineer, DS Core leads the design, implementation, and ongoing evolution of Walmart’s enterprise‑scale Active Directory Service Fabric. Serves as a Strategic Infrastructure & Platform Automation Lead requiring deep technical expertise to architect a secure, highly available hybrid environment that seamlessly integrates physical and virtual identity infrastructure. The ideal candidate drives architectural decisions and strategic roadmaps with an "Automation First" mindset, ensuring the scalability and resilience of the organization’s foundational identity platform regardless of underlying hardware.

• Architect and deploy a secure, highly available Active Directory Service Fabric spanning multiple environments, domains, and forests.
• Provide expert operational oversight for core directory services, specifically LDAP, replication (SYSVOL and Active Directory), and Kerberos on Domain Controllers.
• Lead the design of a hybrid architecture that optimizes resource utilization across both physical and virtual platforms.
• Drive the adoption of Infrastructure as Code (IaC) to programmatically manage the lifecycle, configuration, and security of the identity fabric.
• Design and implement Zero Trust security solutions, ensuring strict isolation of domain controllers from shared administrative access.
• Ensure all AD architectures and controls align with industry standards (NIST, PCI DSS) and corporate security policies.
• Develop and influence short‑ and long‑term roadmaps for directory services, focusing on high availability and software‑defined modernization.
• Perform formal AD DS capacity planning and system benchmarks to ensure performance and scalability across the hybrid landscape.
• Champion "Self‑Healing" infrastructure initiatives, using automation to detect and recover from systemic directory anomalies.
• Design, implement, and maintain advanced monitoring and alerting solutions to detect indicators of compromise and ensure operational health.
• Consult with application, platform, and infrastructure teams on integration patterns and best practices.
• Mentor engineers and provide technical leadership across teams to foster a culture of engineering excellence.

• Bachelor’s degree in Computer Science, Information Technology, or a related field; advanced degree preferred.
• 10+ years of experience in enterprise Active Directory engineering and infrastructure architecture.
• Proven expertise in both physical hardware life cycles and virtualization technologies such as VMware or Hyper‑V.
• Demonstrated mastery of Automation and Scripting (Power Shell, Python, or Go) to manage complex server populations.
• Deep knowledge of AD topology design, replication optimization, and security protocols.
• Excellent communication, documentation, and project leadership skills.

Walmart offers competitive pay, performance‑based bonuses, and a comprehensive benefits package:

• Health benefits:
  
  medical, vision, and dental coverage.
• Financial benefits:
  
  401(k), stock purchase plan, and company‑paid life insurance.
• Paid time off: PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting.
• Disability coverage: short‑term and long‑term disability.
• Additional benefits: company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement.
• PTO/PPTO for vacation, sick leave, holidays, or other purposes; amounts vary by job classification and length of employment.
• Live Better U:
  Walmart‑paid education benefit program for full‑time and part‑time associates, covering tuition, books, and fees.

Bentonville, Arkansas – Annual salary range: $ – $.
Bellevue, Washington – Annual salary range: $ – $. Additional compensation includes annual or quarterly performance bonuses and stock options.

• Option 1:
  Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 5 years’ experience in software engineering or related area at a technology, retail, or data‑driven company.
• Option 2: 7 years’ experience in software engineering or related area at a technology, retail, or data‑driven company.

• Certification in Security+, GISF, CISSP, CCSP, or GSEC.
• Master’s degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 3 years’ experience leading information security or cybersecurity projects.
• Experience creating inclusive digital experiences, implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility.

Primary location: 805 Se Moberly Ln., Bentonville, AR 72712, United States of America.
Walmart maintains a drug‑free workplace with a no‑tolerance policy regarding the use of illegal drugs and alcohol on the job.