Senior Systems and Infrastructure Engineer, Information Security, Managed File Transfer

Walmart

. Lead the design and architecture of secure systems and applications, providing expert guidance on integrating Post-Quantum Cryptography into enterprise environments.

Posted 4/9/2026full-timeBentonville • Virginia • 🇺🇸 United StatesSenior💰 $90,000 - $180,000 per yearWebsite

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

Lead the design and architecture of secure systems and applications, providing expert guidance on integrating Post-Quantum Cryptography into enterprise environments.
Define and drive cryptographic strategy and roadmap, ensuring alignment with evolving PQC standards (e.g., NIST PQC) and organizational security objectives.
Evaluate and guide adoption of cryptographic technologies, including key exchange mechanisms, digital signatures, and message authentication schemes in a post-quantum context.
Partner with hardware and cryptographic vendors to influence product direction, evaluate capabilities, and ensure alignment with long-term security requirements.
Assess emerging threats and advancements in quantum computing and cryptography, translating research into actionable engineering practices and risk mitigation strategies.
Design, implement, and oversee enterprise-scale cryptographic solutions, ensuring compliance with industry standards and regulatory requirements.
Drive modernization of security protocols (e.g., TLS, SSH, IPsec) to support hybrid and quantum-resistant cryptographic approaches.
Mentor and guide engineers, establishing best practices for secure development, cryptographic implementation, and infrastructure security.
Lead cross-functional initiatives, collaborating with engineering, infrastructure, and security teams to embed cryptographic controls into platforms and services.
Communicate complex cryptographic concepts and risks to senior leadership, architects, and non-technical stakeholders to support informed decision-making.

Requirements

What you’ll need

Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 3 years’ experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
5 years’ experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company.
Certification in Security+, GISF, CISSP, CCSP, or GSEC.
Master’s degree in computer science, information technology, engineering, information systems, cybersecurity or related area and 1 year’s experience leading information security or cybersecurity projects.
Knowledge in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility.

Benefits

Comp & perks

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.
Education benefit program for full-time and part-time associates for high school completion to bachelor's degrees with tuition, books, and fees completely paid for by Walmart.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Post-Quantum Cryptographycryptographic strategykey exchange mechanismsdigital signaturesmessage authentication schemessecurity protocolsTLSSSHIPsecsecure development

Soft Skills

mentoringcollaborationcommunicationguidanceleadershiprisk mitigationbest practices establishmentcross-functional initiative leadershipcomplex concept communicationstakeholder engagement

Certifications

Security+GISFCISSPCCSPGSEC