Senior Network Engineer – IT Operations & Infrastructure

Purpose of Role:

Provide L3 ownership for network infrastructure, including incident escalations, troubleshooting, routing, switching, security hardening and firmware upgrades.

Key Responsibilities:
L3 troubleshooting for Cisco & Fortinet based networks, prepare RCA for major incidents, support service restoration.
VLAN, routing (OSPF/BGP/EIGRP), firewall (Fortinet Policy & Rule Mgmt) and VPN (IPSec / SSL) administration.
Security: firewall rule reviews, segmentation, vulnerability remediation and PT remediation.
Upgrades & migrations: perform device firmware upgrades (IOS, NX-OS), network migration activities, and technology refresh projects.
Monitoring: review escalations from L1 monitoring tools (e.g. SolarWinds), perform network event analysis and capacity trend forecasting.
Documentation: maintain configuration documents, update HLD/LLD and operational runbooks/SOP.

Required Experience & Skills:




5–8 years of Cisco switching/routing and Fortinet firewall administration in enterprise networks.
Robust knowledge of network security, VPN technologies, QoS, firewall mgmt and MPLS architectures.
Proficiency with network monitoring and trending tools; experience with RCA & SLA compliance.

Preferred Certifications & Qualifications:
CCNA (minimum), ideally CCNP (ENARSI, DC)
Fortinet NSE (levels 4–7)
ITIL Foundation

Competencies:
Technical ownership and accountability
Solid communication and documentation skills
Ability to mentor junior staff
Analytical thinking and decision-making

Reporting Relationships: Reports to Network Team Lead; coordinates with Security and Monitoring teams.

Required Skills
it operations
cisco routing & switching
fortigate
network security
firewall management
vpn
firmware upgrades

📌 Assistant Manager It Operations & Infrastructure Chennai
🏢 Sourceo
📍 Chennai