Md Mosharaf Hossain

• Led Cloud and Linux teams, optimizing resources and driving innovation. • Designed secure, scalable architectures for private (Proxmox, OpenNebula, CloudStack) and public clouds (Azure, GCP). • Built a high-availability private cloud with 80Gbps DC/DR using Cisco, pfSense, Ceph, and LizardFS. • Managed MySQL (5000 TPS) and cPanel for database and web hosting performance. • Strengthened security with Nessus, Wazuh, Graylog, and SIEM for threat detection and compliance.

• Managed and optimized Linux server operations for hosting and virtualization, ensuring peak performance. • Administered open-source solutions for mail, web, DNS, and virtualization platforms. • Oversaw secure IP networks, including OSPF, BGP, and VPN configurations. • Ensured reliable and high-speed FTTH connectivity for seamless service delivery.

• Provided IT support and system management for Linux and Windows servers, including mail, proxy, AD, file, and IIS services. • Managed antivirus servers for 800 users and oversaw database and application servers. • Maintained WLAN and devices, ensuring proper configuration and security measures. • Streamlined IT operations through automation with scripts and policy improvements

• Directed WiMAX core network operations to ensure optimal availability and performance. • Administered ASN-GW and Linux-based platforms, including Debian, FreeBSD, Ubuntu, and CentOS. • Managed AAA systems and billing operations, overseeing CDR generation and analysis. • Supervised MySQL-based applications supporting core network functions. • Maintained Linux-based infrastructure for DNS, mail, and web services. • Deployed and managed high-availability email systems serving over 100,000 users.