L3 Network Security Engineer - Routing & Switching

Key Responsibilities :

• Advanced Troubleshooting : Perform advanced L3-level troubleshooting for complex network incidents and outages, ensuring rapid resolution and minimal downtime.
• Firewall Management : Expertly manage, configure, and maintain Palo Alto Networks firewalls, FTD (Firepower Threat Defense), and ASA (Adaptive Security Appliance), including the setup of security policies, NAT, VPNs, and threat prevention mechanisms.
• Switching & Routing : Deploy, configure, and troubleshoot Aruba and Cisco switches across access, distribution, and core layers of the network. Implement and manage static routing and Policy-Based Routing (PBR) throughout the network environment.
• Network Performance & Optimization : Proactively monitor network performance and conduct regular tuning activities to ensure optimal throughput and reliability.
• Security & Policy Management : Collaborate with cross-functional teams to ensure proper firewall and network policy configurations are implemented and maintained.
• Network Operations & Upgrades : Perform network upgrades, apply firmware patches, and meticulously follow change management procedures to maintain network integrity.
• Documentation & Reporting : Maintain detailed and accurate documentation of network configurations, diagrams, and incident reports.
• On-Call Support : Participate in on-call rotations and provide escalation support for critical network and security Skills & Experience :
• Experience : Minimum 6+ years of experience in enterprise network engineering roles.
• Networking Fundamentals : Deep understanding of Layer 2 / Layer 3 networking concepts, VLANs, trunking,

and IP subnetting.

ref : hirist.tech)