Systems and Infrastructure Engineer III, Information Security

Position Summary...

What you'll do… Role summary:

The Systems and Infrastructure Engineer III, Information Security, plays a critical role in designing, implementing, and maintaining secure and scalable infrastructure solutions. This position involves developing modular and extensible system architectures, automating workflows, and ensuring compliance with security standards and frameworks. The role requires expertise in risk analysis, capacity planning, and configuration management to support business objectives effectively. The engineer will collaborate across teams to deliver robust, high-quality solutions that enhance system performance, reliability, and security while adhering to established coding and operational best practices.

About the team:

The Identity Platform Team delivers essential identity infrastructure that ensures secure, scalable, and resilient access across Walmart’s technology ecosystem. The team engineers and manages enterprise identity platforms supporting directory services, authentication, authorization, privileged access, and integrations across workforce, applications, cloud, and infrastructure. Responsibilities include platform engineering, architecture, governance, configuration, and lifecycle management to maintain standardization, security, high availability, and scalability. Utilizing Dev Ops, automation, APIs, and telemetry, the team enhances reliability, accelerates service delivery, and enforces consistent controls while leading audit readiness, technical governance, resiliency, and platform modernization initiatives.

• Design and implement scalable, secure infrastructure solutions aligned with business requirements and security standards.
• Develop detailed system designs from high-level architecture, ensuring modularity and extensibility.
• Automate infrastructure deployment and maintenance using scripting and configuration management tools.
• Perform routine infrastructure maintenance, including backups, patching, and compliance audits.
• Analyze and optimize resource capacity to meet current and future demands cost-effectively.
• Identify, prioritize, and resolve technical issues, providing feasible solutions under moderate supervision.
• Collaborate with stakeholders to support security risk assessments and compliance reviews.
• Maintain documentation of system configurations, code revisions, and operational procedures.

• Extensive experience in infrastructure design, including software architecture, distributed systems, and scalability.
• Proficiency in automation tools and scripting languages to streamline workflows and deployments.
• Strong knowledge of security standards, frameworks, and risk compliance methodologies.
• Ability to develop modular, extensible, and functional system designs aligned with business requirements.
• Expertise in infrastructure maintenance, performance metrics, and capacity management.
• Skilled in coding standards, secure software development, and telemetry implementation.
• Experience with configuration and release management in cloud and virtualized environments.
• Familiarity with Agile methodologies and requirement scoping for iterative development.

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.

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