Network Security Engineer L3

Mployee.me; Dadri; On-site; INR 600,000 - 1,500,000; Full time

Job summary

Mployee.me in India seeks an experienced Network Security Engineer to manage firewall configurations, policies, and WAN design, ensuring secure and reliable network operations.

Role requires hands-on troubleshooting of firewall and routing issues, strong documentation, and collaboration on upgrades with OEMs such as Palo Alto, Fortinet, and Check Point.

Qualifications

• Strong understanding of firewall concepts (NAT, zones, security policies).
• Experience with enterprise firewalls, preferably Palo Alto.
• Proficiency in routing with firewalls and routing protocols (BGP/OSPF).
• Knowledge of datacenter networking and Spine-Leaf architectures.
• Hands-on troubleshooting and documentation skills.

Responsibilities

• Conduct L3-level troubleshooting of firewall issues (traffic drops, NAT, asymmetric routing).
• Design, optimize, and review firewall policies for security and efficiency.
• Implement NAT, routing, and zone-based policies for seamless operations.
• Validate security posture and support audits for compliance.
• Provide PCR and CAB support for firewall changes with minimal disruption.
• Root-cause analysis for security and network incidents with preventive strategies.
• Support firewall upgrades, migrations, and redesigns with OEMs like Palo Alto, Fortinet, Check Point.
• Coordinate with vendors and OEMs for network transformation projects.

Skills

Firewall concepts

Palo Alto

Firewall routing

BGP/OSPF

STP

MLAG

VLANs

Spine-Leaf

Network troubleshooting

Documentation

Tools

Palo Alto

Job description

• Strong understanding of firewall concepts, including NAT, zones, and security policies.
• Experience with enterprise firewalls, preferably Palo Alto, and a solid grasp of routing interactions with firewalls.
• Proficiency in routing protocols such as BGP and OSPF, with a mandatory understanding of switching technologies like STP, MLAG, and VLANs.
• In-depth knowledge of datacenter networking concepts and WAN architecture, including Spine-Leaf configurations.
• Hands-on experience in troubleshooting complex network issues and excellent documentation skills.
• Ability to communicate effectively with stakeholders and coordinate with vendors for seamless network operations.

Key Responsibilities

• Conduct L3-level troubleshooting of firewall issues, including traffic drops, NAT complications, and asymmetric routing.
• Design, optimize, and review firewall policies to enhance network security and efficiency.
• Implement NAT, routing, and zone-based policies to ensure seamless network operations.
• Validate security posture and support audits to maintain compliance with industry standards.
• Provide PCR and CAB support for firewall changes, ensuring minimal disruption to services.
• Perform root cause analysis for security and network incidents, developing prevention strategies.
• Support firewall upgrades, migrations, and redesign projects, collaborating with OEMs like Palo Alto, Fortinet, and Check Point.
• Coordinate with vendors and OEMs for network transformation and migration projects, ensuring successful implementation.