(USA) Senior Systems and Infrastructure Engineer, Information Security

Job description

Role summary

The Senior Active Directory Engineer, Information Security, is a hands-on technical contributor responsible for supporting, securing, modernizing, and operating Walmart’s enterprise Active Directory environment. This role implements identity modernization initiatives, applies architecture standards, and develops secure software, automation, and reusable engineering solutions that improve the resilience, scalability, and operational efficiency of large-scale directory services.

About the team

The Enterprise Directory Services Core team manages Walmart’s multiple Active Directory forests, ensuring secure and efficient LDAP services. This team maintains a stable and well-protected Active Directory environment, demonstrating operational excellence. It provides consulting support by sharing best practices and resolving application-related issues. Focused on reliability, security, modernization, and collaboration, the team sustains critical infrastructure supporting Walmart’s business operations.

Their expertise includes systems engineering, cloud migration, configuration management, and security systems, enabling seamless and secure IT service delivery aligned with organizational goals.

What you'll do

Design and implement scalable, secure infrastructure solutions aligned with business and security requirements. Develop and maintain system security plans, 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 requirement 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.

What you'll bring

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.

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, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.

You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices . Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities.

Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. For information about benefits and eligibility, see One.Walmart .

Bentonville, Arkansas US-09050

The annual salary range for this position is $90,000.00 - $180,000.00 Herndon, Virginia US-10710: The annual salary range for this position is $108,000.00 - $216,000.00 Additional compensation includes annual or quarterly performance bonuses.

Additional compensation for certain positions may also include : - Stock

Qualifications

Designing leading and implementing technology projects One of the following scripting/programming languages: Python, Perl, Powershell, VB Script, Ruby, PHP, Bash, C, C++, C#, or .Net Certified Intrusion analyst (GCIAs), GIAC Certified Enterprise Defender (GCED), Certified Geographic Information Systems Professional (GISP), GIAC Certified Incident Handler (GCIH), Certified Information Systems Security Professional (CISSP), Certified Information Systems Auditor (CISA), GIAC Security Essentials Certification (GSEC), Windows/Linux certification, and/or Security+ certification Designing technical solutions in response to customer requests or changes Production support, including problem identification, ticket documentation, and customer and vendor relations Troubleshooting security infrastructure problems