Network Engineer L3

Ltm • Media & Entertainment • Creative Agencies • Certification required • 5 hours ago
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Salary
≈ $91k – $187k per year (Estimated)
Location
Hybrid (Houston, United States)
Seniority
Senior · 6+ years exp

Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Oct 7, 2026. Ltm scores B on the Alion truth index.

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Ltm

LTIMindtree is a worldwide technology consulting and digital solutions company that empowers businesses in a variety of sectors to get to the future faster by combining engineering DNA and tech expertise.
ltm.com • Bengaluru • Mumbai • Hyderabad • Chennai • Pune • Branding • Creative Agencies • Media & Entertainment • Enterprise Apps Implementation Partners • IT Outsourcing & Dedicated Teams • IT Consulting & Digital Transformation • Est. 1996
Tech stack of Ltm
  • Location: Houston, TX (3 days Hybrid)
  • Max Salary : $140K+Benefits
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    Job Description Network Operations Engineer L3

    Role Summary

    We are looking for a Network Operations L3 Engineer to provide advanced operational support troubleshooting and implementation for enterprise network infrastructure The role involves handling complex incidents leading changes and acting as an SME for Cisco Firewalls and Routing Switching environments

    Key Responsibilities

  • Provide L3 support for production network environments including incident resolution root cause analysis and preventive actions
  • Troubleshoot and resolve complex network issues related to routing switching and firewall technologies
  • Configure manage and optimize Cisco Firewalls ASA Firepower FTD including
  • ACLs NAT VPN SitetoSite Remote Access
  • Policy changes upgrades and failover scenarios
  • Design configure and support Routing Switching infrastructure
  • Routing protocols OSPF BGP EIGRP
  • Switching technologies VLANs STP HSRPVRRP PortChannels
  • Lead and execute network changes upgrades migrations and maintenance activities following ITIL processes
  • Act as escalation point for L2NOC teams and mentor junior engineers
  • Participate in problem management RCA documentation and service improvement initiatives
  • Work closely with security cloud and application teams during outages and project activities
  • Maintain technical documentation HLDLLD SOPs runbooks change records

  • Mandatory Skill Sets

  • Cisco Firewalls
  • Cisco ASA Firepower FTD
  • NAT ACLs IPsec SSL VPN
  • High Availability upgrades
  • Routing Switching
  • Strong handson with Cisco Routers Switches
  • OSPF BGP EIGRP
  • VLANs STP HSRPVRRP VPC EtherChannel

    • Troubleshooting

    • Deep packetlevel and protocollevel troubleshooting
    • Handling highseverity incidents in production

    Good to Have

    • Exposure to Fortinet Palo Alto firewalls
    • Experience with Data Center or Enterprise networks
    • Monitoring tools SolarWinds PRTG SNOW
    • Basic understanding of cloud networking Azure AWS connectivity
    • ITIL process awareness Incident Change Problem Management

    Experience Qualifications

    • 6 to 10 years of experience in Network Operations Network Support
    • Strong experience in L3 operational support roles
    • Cisco certifications CCNP CCIE preferred not mandatory
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