Network Engineer III
IT
Bangalore Urban, Karnataka, India · Chennai, Tamil Nadu, India · Lapland, Finland · Bangalore Rural, Karnataka, India · hagerstown, md, usa · Remote
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.
What you'll do...
About the Team
The Network Operations L2 team is responsible for supporting and maintaining Walmart’s large-scale 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 mission-critical enterprise networking environments.
The team supports:
- 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 business-critical 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 long-term fixes to improve network stability.
- Develop and maintain operational runbooks, SOPs, troubleshooting guides, and knowledge articles.
- Participate in on-call rotation and support 24x7 production operations when required.
Automation & Innovation
- Develop and enhance automation solutions using in-house automation tools.
- Improve operational efficiency through self-healing 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.
- 5–7 years of experience in enterprise network engineering and operations.
- Strong hands-on experience in:
- Enterprise routing and switching
- Wireless networking technologies
- WAN/SD-WAN 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 large-scale enterprise network environments.
- Hands-on experience with automation/scripting using Python, Ansible, REST APIs, or equivalent tools.
- Strong analytical, troubleshooting, and problem-solving 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 high-scale, mission-critical environments.
- Ability to collaborate effectively across global teams and multiple technology domains.
About Walmart Global Tech
Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. Thats what we do at Walmart Global Tech. Were a team of software engineers, data scientists, cybersecurity experts and service professionals within the worlds leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.
We’re back to work
Walmart’s culture sets us apart, and we know being together helps us innovate, learn and grow great careers. 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 and the communities we serve live better when we really know them. That means understanding, respecting, and valuing unique styles, experiences, identities, ideas and opinions while being inclusive of all people.
Minimum Qualifications...
Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Minimum Qualifications:Option 1: Bachelor's degree in computer science, information technology, information systems, electrical engineering, or related area and 2 years’ experience in large-scale networking environments or related area.Option 2: 4 years’ experience in large scale networking environments or related area.Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Information Technology - CISCO Certification - Certification