S M Abdul Wadud

I am a network and cyber security expert with 18+ years of experience delivering secure, scalable IT and network solutions for the banking sector. My work focuses on enterprise network design, security operations, and high-availability infrastructure.

I have led Tier III Data Center migrations and centralized secure networking for 250+ branches, architecting Layer 2/Layer 3 infrastructures and optimizing routing with BGP, OSPF and VRF. I manage enterprise firewalls and core routing platforms to ensure redundancy and continuous operations.

My practice emphasizes proactive cyber defense: we deployed IDS/IPS, SIEM-driven log analysis, Radware anti-DDoS, and vulnerability management aligned with ISO/IEC 27001:2013 and banking regulations. I apply ITIL processes to change and incident management and lead incident response and forensic coordination with SOC teams.

I mentor network and security engineers, develop security awareness training, and publish on cybersecurity topics. I hold certifications including PCNSE, CCNA/CCNP, and ITIL, and I aim to continue driving secure, compliant, and resilient infrastructure for financial institutions.