Systems and Infrastructure Engineer III, Information Security

Walmart

Confirmed live today High trust

Quick summary

Work type
On-site
Location
Herndon, VABentonville, AR
Salary
$108,000–$216,000 / yr
Employment
Full-time
Posted
132 days ago
Freshness
Confirmed live today

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $173k
This role $162k
$95k $229k
below market most similar roles pay here above market

This role pays less than 55% of similar roles. Most pay $142,500–$203,875 — the blue band above. At the midpoint, this role pays about $162k versus about $173k for comparable roles.

Based on 240 similar postings.

Employer

About Walmart

Walmart Inc. is the world''s largest retailer by revenue, operating a chain of hypermarkets, discount department stores, and grocery stores, as well as a growing e-commerce presence through Walmart.com. Industry: General Merchandise & Grocery Retail

Walmart currently has 825 open roles on FindRole.

Listed pay typically runs $121,000–$242,000 across 473 roles with salary data.

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At a glance

TL;DR · Systems and Infrastructure Engineer III, Information Security

The (USA) Systems and Infrastructure Engineer III, Information Security joins the Information Security team to design, implement, and maintain secure, scalable infrastructure solutions. This role focuses on the Cryptography group, where you will drive modernization of certificate lifecycle management by building internal tools and advancing automation. You will develop modular system architectures, manage PKI, and provide analytics to improve operational efficiency and visibility. Key responsibilities include collaborating with platform and application teams to solve complex pain points while ensuring compliance with security standards. You must possess proficiency in Java, Python, or Go, alongside experience with GCP, Azure, and containerized environments. The work involves managing cryptographic protocols like TLS and SSH to solve complex cybersecurity challenges and maintain trust within a large-scale e-commerce digital ecosystem.

What you'll do

  • Design and execute standards for cryptography, PKI, and key management across the enterprise.
  • Build internal tools and automation to modernize certificate lifecycle management.
  • Deliver analytics to improve visibility, reliability, and operational efficiency of security systems.
  • Partner with platform and infrastructure teams to develop scalable tooling solutions for complex pain points.
  • Implement production-ready changes to minimize operational risk and improve service resilience.
  • Communicate security standards and best practices to stakeholders to improve platform operations.
  • Maintain secure and scalable infrastructure solutions while ensuring compliance with risk management frameworks.

What we're looking for

  • Option 1: Bachelor's degree in computer science, IT, engineering, information systems, cybersecurity, or related area and systems and infrastructure engineering experience.
  • Option 2: 4 years of experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
  • 3–5 years of software engineering experience, including SRE, platform engineering, or infrastructure-focused roles.
  • Experience with certificate lifecycle management, CLM platforms, PKI, and TLS certificate troubleshooting.
  • Proficiency in Java, Python, or Go.
  • Experience with cloud platforms such as GCP or Azure and containerized environments.
  • Strong understanding of cryptographic protocols like TLS and SSH, as well as algorithms and their implementations.
  • Certification in Security+, GISF, CISSP, CCSP, or GSEC (preferred); Master’s degree in a related field (preferred).

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