Role description

Network Security Engineer | Bangalore | 5-8 Years

Location: Bangalore
Experience: 5-8 Years
Notice Period: Immediate to 30 Days Preferred

Job Overview

We are looking for a Network Security Engineer with strong expertise in both Enterprise Networking and Network Security Operations. The ideal candidate should have hands-on experience in routing, switching, firewalls, VPNs, and troubleshooting complex network security issues across enterprise environments.

Mandatory Skills

Enterprise Networking (Critical)

- Routing: BGP, OSPF, EIGRP
- Switching: VLAN, STP, Trunking, Port Security
- Protocols: TCP/IP, DNS, DHCP, NAT
- LAN/WAN/WLAN and SD-WAN environments
- Traffic flow analysis and packet-level troubleshooting

Network Security

- Firewalls: Cisco ASA, Firepower (FTD/FMC), Fortinet, Palo Alto
- Security Policies, ACLs, NAT, Network Segmentation
- IDS/IPS Management
- Firewall Rule Analysis, Optimization, and Cleanup

VPN & Secure Access

- IPSec Site-to-Site VPN
- Remote Access VPN
- SSL VPN

Troubleshooting (Must Have)

- End-to-End Packet Flow Analysis
- Network and Firewall Issue Correlation
- Log Analysis and Root Cause Analysis (RCA)

Additional Responsibilities

- Manage and optimize firewall and network infrastructure
- Configure and troubleshoot secure connectivity across branches, data centers, cloud, and remote users
- Vulnerability Assessment and Risk Remediation
- Zero Trust Technologies (ZTNA, ZIA, ZPA)
- Monitoring Tools: SolarWinds, ThousandEyes, Splunk
- Network/Firewall Upgrades and Migrations
- ITIL-based Change Management using ServiceNow
- Documentation of network diagrams, policies, and configurations

Valuable to Have

- SD-WAN (Cisco, VeloCloud, Meraki)




- Azure/AWS Networking
- Python Automation and APIs
- Zero Trust Security Solutions

Preferred Certifications

- 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, new 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