USA) Principal, Systems and Infrastructure Engineer

Position: (USA) Principal, Systems and Infrastructure Engineer
Position Summary...

The Principal, Systems and Infrastructure Engineer leads the design, implementation, and maintenance of scalable infrastructure solutions to support business objectives. This role involves optimizing system performance, driving automation initiatives, and ensuring security compliance across platforms. The engineer collaborates with cross-functional teams to manage cloud migrations, capacity planning, and integration efforts while maintaining up-to-date documentation and operational standards. By applying expertise in systems engineering and infrastructure architecture, this position ensures reliable, high-availability environments that meet evolving technical and business requirements within a complex enterprise setting.

About the team:

The Enterprise Directory Services Core team manages Walmart's multiple Active Directory forests, ensuring essential services like LDAP function securely and efficiently. The team maintains a stable and well-protected Active Directory environment, exemplifying operational excellence. It provides consulting support to application teams by sharing best practices and resolving application-related issues. This team plays a vital role in sustaining the infrastructure that supports Walmart's business operations, focusing on reliability, security, modernization, and collaboration to effectively meet organizational needs.

What you'll do...

Lead the design, security, and management of hybrid identity systems. This role drives identity modernization, cloud-based identity and access management adoption, architecture standards, automation, and resilient directory services across large-scale infrastructure.

* Techncal leadership over operations of enterprise Active Directory services across multi-domain, multi-forest, and hybrid identity environments.

* Drive modernization of domain controller infrastructure through life capacity management, resiliency engineering, and service optimization initiatives.

* Advance enterprise identity modernization by integrating Active Directory, cloud-based identity, and the reduction of legacy authentication dependencies.

* Develop and maintain automation frameworks, monitoring platforms, alerting solutions that improve operational efficiency.

* Provide leadership, mentorship, and escalation support for engineers.

What you'll bring:

* 10+ years in IT infrastructure, experience within the past 5 years in enterprise IAM, Active Directory, cloud-based identity, and access management adoption.

* Deep hands-on knowledge of AD forests, domains, GPOs, trusts, replication, and Lifecycle Management.

* Proven ability to lead cross-functional technical projects, mentor engineers, and align security standards with business goals

* Proficiency in cloud migration strategies and management of public cloud platforms.

* Strong knowledge of automation tools, scripting languages (e.g., Power Shell and Python), and CI/CD pipelines to optimize operational efficiency.

* Ability to analyze infrastructure performance metrics and develop capacity plans aligned with business requirements.

* Skilled in configuration, release, and integration management to ensure seamless system deployments.

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  Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart…