Job Summary

We are looking for an experienced Network Security Expert / Network Security Engineer with strong hands-on expertise in enterprise network security infrastructure, perimeter security devices, and Vulnerability Assessment & Penetration Testing (VAPT).

The ideal candidate should have practical experience in implementing, configuring, managing, troubleshooting, and securing enterprise network environments, including Firewalls, Web Application Firewalls (WAF), F5/ADC, Load Balancers, DDoS protection, NIPS, Proxy, VPN, and Routing & Switching infrastructure.

The candidate should also possess strong knowledge of security assessments, vulnerability identification, remediation, and security hardening.

Key Responsibilities

1. Network & Perimeter Security

- Manage, configure, and troubleshoot enterprise network security devices.
- Hands-on experience with Firewall, WAF, F5/ADC, Load Balancers, DDoS protection, NIPS, Proxy, and VPN.
- Manage NAT, PAT, Routing & Switching, SSL/TLS encryption and decryption.
- Implement and maintain network security policies and access controls.
- Perform configuration reviews, security hardening, and infrastructure optimization.

2. Vulnerability Assessment & Penetration Testing (VAPT)

- Perform VAPT for networks, infrastructure, perimeter security devices, web applications, and APIs.
- Identify and validate vulnerabilities, security misconfigurations, and weaknesses.
- Conduct Network, Web Application, API, Firewall, WAF, and Infrastructure Security Assessments.
- Analyze VAPT reports and coordinate vulnerability remediation.
- Perform vulnerability retesting and closure validation.
- Maintain vulnerability registers, assessment reports, and remediation trackers.

3.



Security Assessment & Compliance

- Strong understanding of OWASP Top 10, CVE, CVSS, vulnerability classification, and risk assessment.
- Support security audits, compliance requirements, and documentation.
- Assist in incident investigation, Root Cause Analysis (RCA), and security hardening.
- Support SIEM-based security monitoring and incident response activities.

Required Technical Skills
- Firewall: Palo Alto, Fortinet, Check Point, Cisco.
- WAF: F5 Advanced WAF / ASM, Web Application Firewall.
- Load Balancer: F5 BIG-IP, LTM, GTM, ADC.
- Network Security: DDoS, NIPS, IPS/IDS, Proxy, VPN.
- Networking: Routing, Switching, NAT, PAT.
- Security: SSL/TLS Encryption & Decryption, Security Hardening.
- VAPT Tools: Burp Suite, Nessus/Tenable, Qualys, Nmap, OWASP ZAP, Wireshark.
- Security Knowledge: OWASP Top 10, CVE, CVSS, Vulnerability Management, SIEM.

Mandatory Qualifications & Experience
- B.Tech / B.E. in Computer Science, IT, ECE or MCA.
- Minimum 6+ years of relevant experience in Network Security / Information Security.
- Robust hands-on experience in enterprise Firewall, WAF, F5/ADC, and network security infrastructure.
- Practical experience in Vulnerability Assessment and Penetration Testing (VAPT).
- Excellent troubleshooting, analytical, and problem-solving skills.

Preferred Profile
- Candidates from reputed engineering institutions will be preferred.
- Experience managing enterprise-scale network security environments.
- Strong implementation and troubleshooting experience rather than purely monitoring or coordination experience.
- Relevant certifications such as PCNSE, CCNP Security, Fortinet NSE, or CEH will be an added advantage.

📌 Network Security Expert (New Delhi)
🏢 Corporate Infotech (CIPL)
📍 New Delhi