Mizanur Rahman

Principal Officer – System & Infrastructure Engineering

Al • Vollzeit

Dec 2015 - Present • 10 yrs 11 mos

Lead enterprise IT infrastructure and systems engineering for mission-critical banking services, focusing on high availability, resilience, security, and service continuity. Key Responsibilities and Achievements: • VMware & Virtualization: Administer VMware ESXi, vCenter, vSphere HA/DRS, vMotion, vSAN, NSX-T, VMware Cloud Foundation (VCF), and vCloud Director. • Core Banking Modernization: Served as Technical Lead for the Ababil NG Core Banking System modernization project on VMware Cloud Foundation with Tanzu Kubernetes Grid (TKG), achieving production go-live on January 8, 2025. • Kubernetes & DevOps: Deploy and manage Tanzu/Kubernetes platforms, containerized workloads, microservices, Docker, and GitLab CI/CD delivery workflows. • Linux & IBM AIX: Manage enterprise operating systems, patching, performance tuning, troubleshooting, and security hardening. • Storage & Data Protection: Administer SAN infrastructure, Cisco UCS blade systems, and storage performance. Implement Kubernetes backup and recovery using Velero, with enterprise backup and DR operations. • Networking & Core Services: Configure DNS/BIND, NTP/Chrony, LDAP, SSL/TLS certificates, API Gateway services, VLANs, routing, switching, and firewall rules. • Security & Compliance: Support SIEM and PAM integration, security hardening, and PCI-DSS-related controls. • Monitoring & Optimization: Perform infrastructure monitoring, capacity planning, performance optimization, proactive maintenance, and production troubleshooting to support reliable banking operations.

Senior IT Executive

Space Apartments • Vollzeit

May 2012 - Dec 2016 • 4 yrs 7 mos

Managed IT infrastructure, network administration, and end-user support for hospitality operations. Key Responsibilities: • Network Administration: Managed LAN/WAN infrastructure, switches, routers, access points, and network connectivity. • MikroTik Networking: Configured routing, bandwidth management, firewall rules, VPN connectivity, and secure inter-branch communication. • System Administration: Managed DNS services, monitored system performance, and resolved computer, printer, file-sharing, and internet connectivity issues. • ERP & Business Applications: Supported NiceSoft Hotel Management System and NICE Accounting Module, including operational reporting. • Security & Access Control: Administered BioStar v1.9 biometric access control, CCTV/NVR systems, and PABX/voice infrastructure. • Wireless Infrastructure: Managed controller-based and standalone Wi-Fi access points to maintain reliable wireless connectivity. Focused on network reliability, secure access, efficient troubleshooting, and uninterrupted IT support for daily business operations.