Network Engineer L3

About the role

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.

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 (Site-to-Site, Remote Access), policy changes, upgrades, and failover scenarios.
• Design, configure, and support Routing Switching infrastructure: routing protocols OSPF, BGP, EIGRP; switching technologies VLANs, STP, HSRP, VRRP, 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 (HLD/LLD, SOPs, runbooks, change records).

Skills

Mandatory Skill Sets:

• Cisco Firewalls
• Cisco ASA, Firepower, FTD
• NAT, ACLs, IPsec, SSL VPN
• High Availability upgrades
• Routing & Switching: strong hands‑on with Cisco Routers & Switches
• OSPF, BGP, EIGRP
• VLANs, STP, HSRP, VRRP, VPC, EtherChannel
• Troubleshooting: deep packet‑level and protocol‑level troubleshooting
• Handling high‑severity incidents in production

Good to Have:

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

Qualifications

6 to 10 years of experience in Network Operations / Network Support; strong experience in L3 operational support roles; Cisco certifications CCNP or CCIE preferred but not mandatory.

Benefits

Benefits/perks listed below may vary depending on the nature of your employment with LTIMindtree (“LTIM”):

• Comprehensive Medical Plan covering Medical, Dental, Vision
• Short Term and Long‑Term Disability Coverage
• 401(k) Plan with Company match
• Life Insurance
• Vacation Time, Sick Leave, Paid Holidays
• Paid Paternity and Maternity Leave

Pay

Maximum salary: $140K+. Actual compensation within the range will be dependent upon the individual's skills, experience, performance, and internal equity. Pay is determined by work location, job level, and additional factors such as job‑related skills, experience, and relevant education or training; other forms of compensation (e.g., annual performance‑based bonus, sales incentive pay) may