Role description
Network Security Engineer Firewall RoutingSwitching
Experience 5 to 8 Years
Job Summary
We are seeking a versatile Network Security Engineer with handson expertise in both enterprise networking routingswitchingWAN and network security firewalls VPN Zero Trust
The role focuses on endtoend network and security operations including design implementation troubleshooting and optimization across hybrid enterprise environments
Key Responsibilities
1 Core Networking VERY IMPORTANT ADDITION
Configure and manage
oRouters switches WAN edge devices
Support LANWANWLAN and SDWAN environments
Implement and troubleshoot
oRouting protocols BGP OSPF EIGRP
oSwitching VLAN STP trunking port security
Perform traffic flow analysis L2L7 visibility
Troubleshoot network issues impacting firewallVPN behavior
2 Firewall Security Operations
Configure and manage firewalls
oCisco ASA Firepower FTDFMC Fortinet Palo Alto
Implement and maintain
oSecurity policies ACLs NAT segmentation
Monitor and respond to
oSecurity incidents threats and anomalies
Perform firewall rule analysis optimization and cleanup
3 VPN Secure Connectivity
Configure and troubleshoot
oIPSec VPN sitetosite
oRemote access VPN
Ensure secure connectivity across
oBranch DC Cloud and remote users
4 Security Risk Management
Manage IDSIPS and threat inspection systems
Conduct vulnerability assessments and remediation
Implement Zero Trust ZTNA ZIA ZPA where applicable
Support compliance ISO NIST enterprise policies
5 Monitoring Troubleshooting
Use tools like
oSolarWinds ThousandEyes Splunk
Perform
oDeep packet analysis
oRCA for complex networksecurity issues
Correlate network security events
6 Change Lifecycle Management
Perform
oFirewall upgrades and migrations ASA FTD
oNetwork device upgrades
Execute changes via ITIL processes ServiceNow
7 Documentation Collaboration
Maintain
oNetwork security architecture diagrams
oFirewall policies and config backups
Work with
oNetwork Cloud Security Application teams
Required Skills
Core Networking MANDATORY NOW
Routing BGP OSPF EIGRP
Switching VLAN STP trunking port security
Protocols TCPIP DNS DHCP NAT
Security Firewall
Cisco ASA Firepower FTDFMC
Fortinet Palo Alto
NAT ACL segmentation
IDSIPS
VPN Secure Access
IPSec VPN
SSL VPN
Troubleshooting CRITICAL
Endtoend packet flow analysis
Network firewall issue correlation
Log analysis
Good to Have
SDWAN Cisco VeloCloud Meraki
Cloud networking AzureAWS
ZTNA ZIAZPA
Automation Python APIs
Certifications Preferred
CCNP Enterprise
CCNP Security
Fortinet NSE Palo Alto PCNSE
ITIL Foundation
Skills
Mandatory Skills : SSE - Cisco Umbrella/Secure Access, SSE - Forti SASE, SSE - Zscaler (ZPA, ZIA)
About LTM
LTM is an AI-centric global technology services company and the Business Creativity partner to the world’s largest and most disruptive enterprises. We bring human insights and intelligent systems together to help clients create greater value at the intersection of technology and domain expertise. Our capabilities span integrated operations, transformation, and business AI — enabling new ways of working, recent productivity paradigms, and new roads to value. Together with over 87,000 employees across 40 countries and our global network of partners, LTM — a Larsen & Toubro company — owns business outcomes for our clients, helping them not just outperform the market, but to Outcreate it. Please also note that neither LTM nor any of its authorized recruitment agencies/partners charge any candidate registration fee or any other fees from talent (candidates) towards appearing for an interview or securing employment/internship. Candidates shall be solely responsible for verifying the credentials of any agency/consultant that claims to be working with LTM for recruitment. Please note that anyone who relies on the representations made by fraudulent employment agencies does so at their own risk, and LTM disclaims any liability in case of loss or damage suffered as a consequence of the same. Recruitment Fraud Alert - https://www.ltm.com/careers/recruitment-fraud-alert
📌 Specialist - CyberSecurity (Bengaluru)
🏢 LTM
📍 Bengaluru