Harsh Kadu

Network Security Engineer with hands-on experience in F5 BIG-IP LTM and ASM (WAF), specializing in application delivery, load balancing, SSL offloading, Layer 7 security, and web application protection. Experienced in executing BIG-IP platform migrations, including iSeries to rSeries, iSeries to iSeries, and full application migrations. Proficient in configuring Virtual Servers, Pools, Nodes, Health Monitors, Persistence Profiles, SSL Profiles, SNAT Automap, High Availability (HA), software upgrades, and system hardening.

Strong experience in the implementation and optimization of WAF security policies, including OWASP Top 10 mitigation, HTTP Compliance, Brute Force Protection, DoS Protection, Bot Defense, and Layer 7 traffic inspection. Currently expanding expertise in packet-level traffic analysis using Wireshark and tcpdump, with a strong foundation in TCP/IP, HTTP/HTTPS, SSL/TLS handshakes, and application delivery concepts.

NOC Engineer at Cubix Tech Pvt. Ltd. (2026-05 – Present)

• Performed BIG-IP platform migrations, including iSeries to rSeries, iSeries to iSeries, and full application migrations.
• Enhanced application security posture by increasing OWASP compliance/security scores through rule optimization and policy adjustments.
• Performed WAF policy fine-tuning, successfully transitioning policies from learning mode to blocking mode, reducing false positives and improving application accessibility.
• Analyzed HTTP compliance, ASM event logs, and application traffic behavior to troubleshoot access and security issues.
• Supported BIG-IP software upgrades and high availability (HA) configurations.
• Escalated complex network and security issues to L2/L3 teams with proper debugging, logs, and documentation.

NOC Engineer Intern at Cubix Tech Pvt. Ltd. (2025-05 – 2026-05)

• Configured and supported F5 BIG-IP LTM components including virtual servers, pools, nodes, health monitors, persistence profiles, and SSL profiles.
• Implemented SNAT Automap, SSL offloading, and system hardening to ensure secure and stable application delivery.
• Deployed and managed BIG-IP ASM (WAF) security policies to protect applications from Layer 7 attacks.
• Configured WAF features including brute force protection, DoS profiles, and bot protection.
• Administered FortiGate firewalls including policy management, NAT configuration, VPNs, traffic shaping, web filtering, and threat mitigation.
• Supported NOC operations including monitoring, incident triage, root cause analysis, and configuration validation in a 24x7 environment.
• Handled L1/L2 support tickets, performed initial troubleshooting, and ensured timely resolution within SLA timelines.

Bachelor of Science (B.Sc.) in Information Technology – Keraleeya Samajam Model College (2025)

Higher Secondary Certificate (HSC) in Science – E. B. Madhavi Senior College (2022)

Secondary School Certificate (SSC) – S.S. Nikam English School (2020)