Network Security Engineer

Cortex Consultants LLC; Mumbai; Hybrid; INR 1,500,000 - 2,500,000; Full time

Job summary

Cortex Consultants LLC in Mumbai seeks a Senior Network & Cloud Security Operations Engineer to manage a complex multi-vendor firewall estate across on-premises and cloud environments. This role involves incident management, firewall operations, and documentation. Ideal candidates will have over 7 years in network security, relevant certifications, and must be capable of handling complex change activities independently. The position operates in a hybrid model with rotational shifts.

Qualifications

• 7+ years in Network Security, focus on production support and BAU.
• CCSA, CCSE certifications preferred.
• 5+ years hands-on experience with Check Point product.

Responsibilities

• Manage incident tickets P1, P2, and P3 ensuring rapid resolution.
• Conduct Root Cause Analysis (RCA) for post-incident processes.
• Oversee configuration for Cisco, Fortinet, and Check Point firewalls.
• Implement security changes with minimal downtime.
• Create and update LLD documents and Runbooks.

Skills

Network Security

Incident Management

Firewall Configuration

Cloud Security

Multi-Vendor Management

Education

Graduate in IT/ Telecom domain

Tools

Cisco ASA/FTD

Fortinet FortiGate

Check Point

AWS

Azure

GCP

Job description

Senior Network & Cloud Security Operations Engineer

Location: Mumbai (Hybrid model).

We are looking for a highly technical Senior Security Engineer to join our Global Security Operations team. He/she will be the primary lead for managing a complex, multi-vendor firewall estate (Cisco, Fortinet, Check Point) across on-premises and cloud environments. This is a high-impact role requiring a mix of rapid incident response (P1/P2) and implementing BAU project changes including Low-Level Design (LLD).

Resource shall be working in a 24x7 support model having rotational shift.

Key Responsibilities

Incident and Problem Management

• End-to-End Troubleshooting: Responsible for P1, P2, and P3 incident ticket resolution, ensuring rapid restoration of services while maintaining security integrity.
• Root Cause Analysis (RCA): Lead the post-incident process by conducting deep-dive RCAs.

Firewall Operations & Change Management

• Multi-Vendor Management: Perform complex configuration, rule optimization, and policy management for Cisco (ASA/FTD), Fortinet (FortiGate), and Check Point firewalls.
• Hybrid Environment Support: Manage firewalls deployed in both traditional data centers and cloud environments (AWS/Azure/GCP).
• Change Execution: Implement all tiers of security changes, ensuring zero downtime and strict adherence to maintenance windows.

Documentation

• LLD & Documentation: Create and update Low-Level Design (LLD) documents for network security integrations.
• Runbook Creation: Develop and maintain detailed Runbooks and Standard Operating Procedures (SOPs) for the NOC/SOC teams to ensure consistent operational delivery.
• Quality Assurance: Execute Two-Eye Checks (Peer Reviews) for complex change windows to ensure accuracy and prevent human error in the production environment.
• Understanding of ITIL framework (Incident, Change, and Problem Management).

Experience

• 7+ years in Network Security, with a focus on large-scale production support and BAU project activities.
• Certifications: CCSA, CCSE.
• Minimum 5 years hands-on experience on checkpoint product, capable to independently handle P1, P2 tickets and complex change activities.

Education

• Graduate in IT/ Telecom domain.

Expertise In Security Platforms

• Fortinet: FortiManager, FortiAnalyzer, and FortiGate clusters.
• Checkpoint, Cisco FTD: Extensive experience with these platforms.

Cloud Networking

• Solid understanding of Cloud Security Groups, user-defined routes (UDR), and cloud-native firewall integrations.