Network Engineer III

Position Summary We are seeking a highly skilled and motivated Network Engineer III to join the Network Operations L2 organization. This role will act as an experienced technical resource supporting complex network incidents, infrastructure reliability, operational excellence, and automation initiatives across Walmart's enterprise network ecosystem. The ideal candidate will possess strong expertise in enterprise networking technologies, advanced troubleshooting capabilities, operational ownership, and a passion for improving network reliability and operational efficiency at scale. About the Team The Network Operations L2 team is responsible for supporting and maintaining Walmart's largescale global network infrastructure across stores, distribution centers, data centers, WAN, and core infrastructure services. The team ensures operational excellence, high availability, rapid incident response, and continuous improvement across missioncritical enterprise networking environments. Store Networks (Wired & Wireless) Distribution Center (DC) Networks Data Center Networks Global WAN (GWAN) DDI Infrastructure (DNS, DHCP, IPAM) What You'll Do Network Operations & Incident Management Provide L2 operational support for Walmart's global network infrastructure including: Store wired and wireless networks Distribution Center networking Data Center networking GWAN connectivity DDI platforms (DNS, DHCP, IPAM) Troubleshoot and resolve complex network incidents impacting businesscritical services. Participate in major incident management (MIM) calls and drive technical resolution activities. Perform root cause analysis (RCA) and implement corrective/preventive actions. Collaborate with L1 operations teams for escalations, mentoring, and knowledge transfer. Technical Leadership Serve as a subject matter expert for routing, switching, wireless, WAN, and DDI technologies. Support infrastructure upgrades, migrations, deployments, and operational readiness activities. Review network changes and ensure operational compliance and risk mitigation. Work closely with architecture, engineering, security, and cloud teams to support new initiatives. Reliability & Continuous Improvement Drive operational excellence through proactive monitoring, observability, and performance optimization. Identify recurring issues and implement longterm fixes to improve network stability. Develop and maintain operational runbooks, SOPs, troubleshooting guides, and knowledge articles. Participate in oncall rotation and support 24x7 production operations when required. Automation & Innovation Develop and enhance automation solutions using inhouse automation tools. Improve operational efficiency through selfhealing workflows and automated remediation. Support telemetry, monitoring, and analytics initiatives for enhanced network visibility. Contribute to process standardization and operational modernization initiatives. Minimum Qualifications Bachelor's degree in Computer Science, Information Technology, Engineering, or related field. 57 years of experience in enterprise network engineering and operations. Strong handson experience in: Enterprise routing and switching Wireless networking technologies WAN/SDWAN environments Data Center networking DNS, DHCP, and IPAM solutions Expertise with technologies and platforms such as: Cisco Juniper Versa Infoblox Strong understanding of: TCP/IP BGP, OSPF, EIGRP VLANs, STP, HSRP/VRRP VXLAN/EVPN WLAN architectures DNS/DHCP/IPAM Experience troubleshooting largescale enterprise network environments. Handson experience with automation/scripting using Python, Ansible, REST APIs, or equivalent tools. Strong analytical, troubleshooting, and problemsolving skills. Excellent verbal and written communication skills. Preferred Qualifications Experience supporting large retail or globally distributed enterprise environments. Experience with network monitoring and observability platforms. Familiarity with ITIL processes and ServiceNow workflows. Exposure to SRE practices and operational excellence methodologies. What Makes You Stand Out Strong ownership mindset and operational discipline. Ability to troubleshoot highly complex network problems under pressure. Passion for automation and continuous improvement. Experience working in highscale, missioncritical environments. Ability to collaborate effectively across global teams and multiple technology domains. Location This role is based in our Chennai office for daily work, with flexibility for associates to manage their personal lives. Benefits Benefits: Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more. Equal Opportunity Employer Walmart, Inc. is an Equal Opportunity Employer By Choice. We believe we are best equipped to help our associates, customers .