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Walmart Canada · 3 weeks ago

Staff, Network Engineer, Information Security

Bentonville, AR

Full-time

Onsite

Senior Level, Lead/Staff

$110K/yr - $220K/yr

4+ years exp

Walmart Inc. is seeking a senior-level engineer to assist in the design, implementation, and modernization of their Network Access Control (NAC) capabilities. The role involves driving a multi-year strategy that includes 802.1x deployment, TACACS automation, and developing infrastructure-as-code strategies.

DeliveryRetailShopping

Responsibilities

Help lead the technical execution of Walmart’s NAC strategy, including major initiatives in 802.1x, TACACS, and ZTA posture enforcement

Design, deploy, and support NAC policies and controls across campus, stores, and distribution centers

Build and maintain automation workflows that eliminate repetitive operational tasks

Develop infrastructure-as-code modules and workflows to manage NAC systems and supporting infrastructure in a modern, declarative way

Partner closely with teams across Global Tech and InfoSec to deliver integrated solutions

Troubleshoot complex NAC issues involving RADIUS, TACACS+, switchport behavior, endpoint posture, and authentication flows across Cisco and Juniper environments

Contribute to the evaluation of platforms including viability assessments, POCs, and architectural recommendations

Create technical documentation, diagrams, and playbooks to support both operational teams and leadership

Qualification

802.1xCisco ISEInfrastructure as CodeNetwork AutomationZero TrustRADIUSTACACS+Vendor AssessmentsRBAC ModelsCommunication Skills

Required

Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 4 years' experience in network engineering or related area at a technology, retail, or data-driven company

6 years' experience in network engineering or related area at a technology, retail, or data-driven company

Extensive hands-on experience with 802.1x for wired and wireless networks, including authentication flows, EAP methods, and switchport enforcement

Deep understanding of Cisco ISE architecture and configuration, including RADIUS, TACACS+, policy sets, profiling, and posture assessment

Experience working in mixed network environments, including Cisco Catalyst/NX-OS and Juniper EX/Mist

Practical experience automating infrastructure or network operations using tools appropriate to the environment

Background in infrastructure as code using tools like Terraform or similar, with the ability to manage infrastructure through version-controlled declarative configuration

Scripting or orchestration frameworks used in network automation

API-driven automation for network and security platforms

Solid networking background to include access layer switching, load-balancing, firewalls, and routing

Familiarity with Zero Trust concepts and how NAC fits into device posture, identity, and least-privilege access models

Experience designing RBAC models and command authorization workflows for network infrastructure

Strong communication skills and the ability to work cross-functionally in a large enterprise

Preferred

Certification in Security+, Network+, GISF, GSEC, CISSP, or CCSP

Master's degree in Computer Science, Information Technology, Engineering, Information Systems, Cybersecurity, or related area and 2 years' experience leading information security or cybersecurity projects

Background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly

Knowledge of accessibility best practices