(USA) Senior Systems and Infrastructure Engineer, Information Security
About The Position
The Senior Systems and Infrastructure Engineer, Information Security, is a hands-on technical contributor responsible for supporting, securing, modernizing, and operating Walmart’s enterprise Active Directory environment. The role implements identity modernization initiatives, applies architecture standards, and develops secure software, automation, and reusable engineering solutions to improve the resilience, scalability, and operational efficiency of large-scale directory services. The position is part of the Enterprise Directory Services Core team, which manages Walmart’s multiple Active Directory forests and supports secure, efficient LDAP services. The team maintains a stable and protected Active Directory environment, provides consulting support and best practices, and resolves application-related issues. Its work spans systems engineering, cloud migration, configuration management, and security systems to sustain critical business infrastructure and reliable IT service delivery. The role designs and implements infrastructure solutions, maintains security and compliance, automates deployment and maintenance, and supports capacity planning, performance optimization, and troubleshooting. Locations listed are Bentonville, Arkansas, and Herndon, Virginia.
Requirements
- Experience engineering, securing, or supporting enterprise Microsoft Active Directory environments.
- Hands-on experience developing and maintaining scripts, automation, or software solutions using PowerShell, Python, or a comparable programming language.
- Experience using Git or another source-control platform and applying structured development practices such as code review, testing, documentation, and release management.
- Experience with authentication protocols, security controls, compliance requirements, and infrastructure operations.
- Experience contributing to technical projects, documenting solutions, and resolving complex operational issues.
- Expertise in capacity management, performance optimization, and resource rightsizing.
- Proven capability in infrastructure maintenance, issue resolution, and configuration of physical and virtualized environments.
- Option 1 minimum qualification: Bachelor’s degree in computer science, information technology, engineering, information systems, cybersecurity, or a related area, plus 3 years of experience in systems and infrastructure engineering or a related area at a technology, retail, or data-driven company.
- Option 2 minimum qualification: 5 years of experience in systems and infrastructure engineering or a related area at a technology, retail, or data-driven company.
Nice To Haves
- Certified Intrusion Analyst (GCIA), GIAC Certified Enterprise Defender (GCED), Certified Geographic Information Systems Professional (GISP), GIAC Certified Incident Handler (GCIH), CISSP, CISA, GIAC Security Essentials Certification (GSEC), Windows/Linux certification, and/or Security+ certification.
- Experience designing, leading, and implementing technology projects.
- Experience designing technical solutions in response to customer requests or changes.
- Experience with one or more of Python, Perl, PowerShell, VB Script, Ruby, PHP, Bash, C, C++, C#, or .NET.
- Production support experience, including problem identification, ticket documentation, and customer and vendor relations.
- Experience troubleshooting security infrastructure problems.
Responsibilities
- Design and implement scalable, secure infrastructure solutions aligned with business and security requirements.
- Develop and maintain system security plans and conduct risk and compliance reviews to ensure adherence to security standards.
- Automate infrastructure deployment and maintenance tasks using scripting and configuration management tools.
- Perform routine infrastructure maintenance, including backups, patch management, and performance monitoring.
- Collaborate on requirements analysis, scoping, and design trade-offs for modular and extensible system components.
- Manage capacity planning and optimize resource utilization to meet current and future demands.
- Troubleshoot and resolve infrastructure issues, escalating as necessary to maintain system integrity.
- Support, secure, modernize, and operate Walmart’s enterprise Active Directory environment.
- Implement identity modernization initiatives, apply architecture standards, and develop secure software, automation, and reusable engineering solutions.
- Contribute to technical projects, document solutions, and resolve complex operational issues.
Benefits
- Competitive pay
- Performance-based bonus awards
- Medical, vision, and dental coverage
- 401(k)
- Stock purchase
- Company-paid life insurance
- Paid time off, including sick leave
- Parental leave
- Family care leave
- Bereavement leave
- Jury duty leave
- Voting leave
- Short-term and long-term disability
- Company discounts
- Military Leave Pay
- Adoption and surrogacy expense reimbursement
- PTO and/or PPTO for vacation, sick leave, holidays, or other purposes
- Walmart-paid Live Better U education benefit, including tuition, books, and fees for eligible associates
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What This Job Offers
Job Type
Full-time
Career Level
Senior
