Arefin I.

Technical Security Expertise: - Vulnerability Assessment and Penetration Testing (Nessus, OpenVAS, Acunetix) - Security Operations (Wazuh XDR & SIEM, AzureAD PAM & DLP, Darktrace NDR & EDR) - FortiADC Load balancer with WAF & Barracuda Email Security Gateway. - Network Security (FortiGate Firewall, Cisco FTD) - Backup and Recovery (Veeam, Azure Site Recovery, Symantec Backup Exec, DPM) Cloud Expertise: - Architected and supported secure, scalable cloud solutions across AWS and Oracle Cloud Infrastructure (OCI) using core compute, networking, storage, and IAM services. - Designed and implemented multicloud architectures (AWS–OCI) with secure VPN/IPSec connectivity, workload optimization, and high availability. - Applied cloud security best practices, including IAM least privilege, network segmentation, encryption, logging, and compliance aligned with CIS benchmarks. - Optimized performance, availability, and cost through capacity planning, monitoring, automation (IaC concepts), and cloud best-practice frameworks. System Administration: - Active Directory, Group Policy, Exchange Hybrid (On-Prem & O365) - VMware VCenter, Citrix XenDesktop, Postfix Email Gateway, Squid Proxy - SCCM Auto push installation & MDT (Microsoft Deployment Toolkit) Automation and Tools: - Powershell, Scripting (Python), Docker (Guacamole, BookStack) - JIRA, Freshdesk Ticketing System, RD Web for remote platform Soft Skills: - Leadership and Team Management - Meticulous Reporting and Documentation - Cross-functional Collaboration