Network Security Engineer

Job Title: Lead Network & Security Engineer

Experience Required: 10-13 Years

Location: Hyderabad

Male Candidates Only

Mandatory Work from Office

Rotational Shift

OSI Digital is looking for Lead Network Security Engineer with strong expertise in Palo Alto (firewalls, Panorama), Arista Spine-leaf and Cisco ISE. The candidate should possess extensive experience in traffic analysis, rule base review, network access control, and data center migration projects. This role requires a proactive professional who can ensure the efficiency, security, and compliance of our clients enterprise network infrastructure.

Key Responsibilities:

• Palo Alto & Panorama
• Manage, configure, and optimize Palo Alto firewalls and Panorama.
• Analyze network traffic and firewall rules to ensure compliance and security.
• Review, audit, and optimize security policies and access rules.
• Identify and block vulnerable ports/services to strengthen network defense.
• Perform rule base clean-up, removing unused or redundant rules.
• Ensure best practices are followed for firewall and Panorama operations.
• Network Access Control (NAC)
• Implement and manage 802.1X authentication.
• Administer and troubleshoot Cisco ISE for NAC and policy enforcement.
• Integrate NAC solutions with security infrastructure.
• Migration Projects
• Lead or support data center migration activities from legacy to modern environments.
• Ensure minimal downtime and smooth cutover during migrations.
• Validate switch-to-firewall traffic paths and ensure seamless connectivity.
• Security & Network Operations
• Provide end-to-end analysis of network and security flows.
• Monitor, troubleshoot, and optimize performance issues across network layers.
• Collaborate with cross-functional teams to strengthen enterprise security posture.

Required Skills:

• 10 to 13 years of professional experience in network security engineering.
• Strong hands-on expertise in Palo Alto Networks firewalls & Panorama.
• Proven experience in rule analysis, clean-up, and traffic analysis.
• Solid understanding of network access control (802.1X, Cisco ISE).
• Good Understanding of static Routing and Dynamic Routing like BGP OSPF and EIGRP.
• Hands on exposureon Arista Spine-leaf architecture.
• Experience in data center migration and large-scale infrastructure projects.
• Deep knowledge of switch traffic paths, firewall integration, and network security design.
• Strong troubleshooting, analytical, and documentation skills..

Preferred Qualifications

• Palo Alto certifications (e.g., PCNSE, PCCSA, PCNSA).
• Cisco certifications (CCNA, CCNP Security, CCNP Enterprise).
• Experience with multi-vendor environments and security best practices.

We are not looking for someone who is:

• Not interested to work from office.
• Not willing to work in a 24*7 shift roster.
• Who hasnt supervised any Shift.