L3 Network Engineer

HCL Technologies
Dallas, TX, United States
12 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
8 years minimum
Compensation
$99,000.0 - $125,000.0
Working hours
Shift work
Job source

Tech stack

Link Aggregation (Ethernet) Apple IOS Border Gateway Protocol Spanning Tree Protocols Computer Networks Data Centers Dynamic Host Configuration Protocol Network Address Translation Domain Name System (DNS) Enhanced Interior Gateway Routing Protocol EtherChannel Hot Standby Router Protocol
+20 more
Virtual Private Networks (VPN) Network Security Routing Cisco Nexus Switches Open Shortest Path First (OSPF) Wireshark Virtual Local Area Networks Virtual Router Redundancy Protocols Wide Area Networks Wireless Access Point Wireless Networks Transport Layer Security Identity Services Engine Load Balancing Computer Network Technologies Information Technology Routing & Switching Open Network Automation Platform Big Ip Cisco

Job description

About the Role: Join our dynamic team as a Senior Network Engineer specializing in Routing & Switching, where you’ll design, implement, and support our enterprise LAN/WAN infrastructure across large-scale environments. Lead critical troubleshooting efforts, support network automation initiatives, and drive projects that ensure our network’s resilience, security, and performance. This role offers opportunities for professional development, mentorship, and exposure to cutting-edge networking technologies., * Design, deploy, and manage enterprise LAN/WAN networks, ensuring scalability, security, and reliability.

  • Troubleshoot complex routing and switching issues, leading root cause analysis and incident resolution.
  • Configure and manage advanced routing protocols including BGP, OSPF, EIGRP, and support high-availability protocols such as HSRP/VRRP.
  • Manage VLANs, Spanning Tree protocols (STP/RSTP/MSTP), EtherChannel, LACP, and QoS to optimize network traffic.
  • Perform IOS/NX-OS upgrades, lifecycle management, and network automation tasks.
  • Administer Cisco Wireless LAN Controllers (WLC), Access Points, and work with Cisco ISE for policy enforcement.
  • Deploy and support Cisco SD-WAN technology, troubleshooting overlay/underlay connectivity, and routing policies.
  • Manage Cisco ACI fabric environments, including tenants, VRFs, bridge domains, EPGs, and contracts, supporting data center migrations and automation initiatives.
  • Provide Level-3 support for high-priority incidents, conduct packet analyses with Wireshark, and perform RCA to prevent recurrence.
  • Implement and troubleshoot network security controls such as ACLs, VPNs, NAT, and segmentation policies.
  • Mentor junior engineers, sharing technical expertise and best practices to build a resilient team.

Preferred Skills & Technologies:

  • Infoblox DNS, DHCP, and IPAM management.
  • F5 BIG-IP load balancer administration, including SSL offloading and iRules.
  • Strong understanding of network automation and IP management.
  • Experience with data center migrations and large-scale enterprise projects.

Requirements

  • Bachelor’s Degree in Computer Science, Information Technology, or a related field.
  • 8+ years of enterprise networking experience, with proven expertise in Cisco technologies.
  • Hands-on experience in large-scale enterprise or healthcare environments.
  • Excellent troubleshooting, analytical, and stakeholder management skills.

Work Schedule & Environment:

  • Willingness to support a 24/7 global support operation, including night shifts, weekends, and on-call rotations.
  • Flexibility to participate in scheduled maintenance, critical incident management, and support during non-business hours.
  • Must thrive under pressure during P1/P2 incidents while coordinating with cross-functional teams and vendors.

Benefits & conditions

Pulled from the full job description

  • AD&D insurance
  • 401(k)
  • Health insurance
  • Paid time off
  • Vision insurance
  • Dental insurance
  • Unlimited paid time off, * Opportunity for career growth through involvement in innovative projects and automation initiatives.
  • Collaborative team environment with exposure to global networking challenges.
  • Compensation includes competitive salary, benefits, and professional development allowances.

A candidate’s pay within the range will depend on their skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to HCL policies. In addition, this role is eligible for the following benefits subject to HCL policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance; employee assistance program; 401(k) retirement plan; 10 days of paid time off (PTO) per year (some positions are eligible for unlimited PTO); and 10 paid holidays per year., * 401(k)

  • Dental insurance
  • Health insurance
  • Paid time off
  • Vision insurance

About the company

HCLTech is a global technology leader with a presence in over 60 countries, dedicated to delivering innovative digital, engineering, cloud, and AI solutions. We partner with clients across diverse industries to create impactful, sustainable technology services that drive progress worldwide.

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