Assistant Manager - IT Operations & Infrastructure

Tata Communications; Chennai District; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Tata Communications is seeking a Senior Network Engineer in IT Operations Infrastructure to provide L3 ownership for complex network infrastructure, handle incidents, and lead upgrades and security hardening initiatives. You will manage Cisco and Fortinet environments, with emphasis on routing, VPNs, and security policy management.

Responsibilities include troubleshooting, RCA for major incidents, migrations, monitoring, and thorough documentation of network topology and runbooks.

Qualifications

• Experience in Cisco switching and routing in enterprise networks.
• Strong knowledge of network security, VPN technologies, QoS and MPLS architectures.
• Proficiency with network monitoring and trending tools; experience with RCA and SLA compliance.

Responsibilities

• L3 troubleshooting for Cisco/ Fortinet based networks and prepare RCA for major incidents.
• VLAN, routing (OSPF/BGP/EIGRP), firewall (Fortinet) policy rule mgmt and VPN administration.
• Security: firewall rule reviews, segmentation, vulnerability remediation.
• Upgrades/migrations: device firmware upgrades (IOS, NX-OS) and network migrations.
• Monitoring: review escalations from L1 tools (e.g., SolarWinds) and analyze network events.
• Documentation: maintain configuration documents, update HLD/LLD and runbooks/SOP.

Skills

Cisco switching/routing

Fortinet firewall administration

Network security

VPN technologies

QoS

Firewall management

MPLS architectures

Network monitoring tools

RCA/SLA compliance

Job description

Senior Network Engineer IT Operations Infrastructure

Purpose of Role:

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

Key Responsibilities:

• L3 troubleshooting for Cisco Fortinet based networks, prepare RCA for major incidents, supportservice restoration.
• VLAN, routing (OSPF/BGP/EIGRP),firewall(Fortinet Policy RuleMgmt)and VPN (IPSec / SSL) administration.
• Security:firewallrule reviews, segmentation, vulnerabilityremediationand 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 eventanalysisand capacity trend forecasting.
• Documentation:maintainconfiguration documents, update HLD/LLD and operational runbooks/SOP.

Required Experience Skills:

• 58 years of Cisco switching/routing and Fortinetfirewalladministration in enterprise networks.
• Strong knowledge of network security, VPN technologies, QoS,firewallmgmtand MPLS architectures.
• Proficiencywith network monitoring and trending tools; experience with RCA SLA compliance.

Preferred Certifications Qualifications:

• CCNA (minimum), ideally CCNP (ENARSI, DC)
• Fortinet NSE (levels 47)
• ITIL Foundation

Competencies:

• Technical ownership and accountability
• Strong communicationand 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.