• Spearhead the planning, capacity modeling and implementation of Microsoft based platforms /solutions initiatives to ensure that systems are scalable, reliable, secure, supportable, and achieve business and IT performance and budgetary objectives.
• Create and maintain system architecture documents and technology road maps.
• Maintain current professional and technical knowledge pertaining to industry standards/best practices to Conduct infrastructure assessments, gap analyses and provide recommendations with implementation strategies.
• Provide guidance and support to other system administrators and ensure seamless and non-disrupted changes are implemented.
• License Modeling and Management of Infrastructure Technology.
• Conduct technical studies & evaluations of business area requirements and recommends to IT management appropriate technology options.
• Act as project manager and senior member of Infrastructure team for planning, designing and implementation of multiple IT projects.
• Identifying risks and ensuring projects delivery to business ends.
• Single point of contact for all communications between the IT department, vendors and end users.
• Building RFPs and evaluating vendor proposals
• Management of mission critical systems including business and operations support systems.
• Manage and lead hardware and software migration and upgrade efforts of varying size and complexity

Administering VMware Infrastructure: (3 geographically distributed DCs, 30+ ESXi hosts, 700+VMs,
Windows Servers).
Configuration and Installation of vCenter Server 4.1/5.1/5.5, SSO, Inventory services and web client.
Configuring and managing VMware Features like vMotion, Storage vMotion, HA, DRS, SIOC.
Administering Windows Servers. Worked on Windows 2003, 2008, 2008 R2 and Windows Server
2012, 2012R2.
Managing VMware vCenter/Esxi using powerCLI and vCli to troubleshoot firewall, storage multipath,
I/O, performance issues.
Troubleshooting issues related to performance. Optimizing resource utilization (Memory/CPU and
storage). Assessing new project/VM requirements, sizing, server provisioning, etc.
Live migration and Cold migration of Virtual Machines to ensure load balancing of Hosts.
Provision, manage, and migrate virtual machines a n d virtual appliances as business needs and
configuring storage and networking accordingly.
Virtual machine clones and template and snapshot management.
Defining and assignment of customized roles based access on virtual environment
Virtual machine backups using EMC Avamar backups 6.1/7.0.
Patch management of vCenter and ESXi hosts to ensure fully secured Virtual Environment.
Managing and maintaining Windows server 2008 R2 Clustering and high availability in Virtual infrastructure environment.
Trouble shooting VMware tools related Issues on windows and Linux OS.
Installation, Configuration and Trouble shooting of DNS,
Creation and management of partition on linux OS(RHEL/CentOS) using fdisk.
Monitoring and Reporting of Virtual infrastructure us ing Veeam One 7.0/Veeam One8.0/OPManager/vCenter built-in Performance monitoring.
Internal Correspondence with System/Windows Operations, Networks and SAN Team
Incident management and request handling on daily basis and Trouble ticket creation/closure using HP Service Manager (ITSM).
Providing End user support and Ensuring End to End delivery of the newly provisioned VM’s

Sever Hardening and Windows Operating system security.
Installing, configure and deploying Windows server 2008 all version.
Installing and configuring windows server 2012.
Trouble shooting of daily server issues.
Patch management of Windows Server OS.
Removal of vulnerabilities from servers.
Manage and maintain 24/7 Windows Systems infrastructure environment.
Migration of Windows Server 2003 to Windows Server 2008 R2.
Responsible running critical and business critical application servers.
Monitoring of Servers using Microsoft SCOM 2012 Reporting web console.
Responsible for inventory management.
Installation and configuration of IIS server.
Installation of Anti-Virus (Symantec Endpoint Protection).
Release and handling of SPAM e-mail using Symantec Messaging gateway.
Installation, Configuration and maintenance of Network load balancing and clustering of Windows.

Operating System Security with a focus on Windows, UNIX.
Systems/Servers Vulnerability Assessment.
Penetration Testing.
Foot printing, Reconnaissance, scanning and enumeration.
Removal of Vulnerabilities from all servers.
Patch Management of windows servers.
Linux OS security Hardening.
Installation and configuration of Linux operating system and Linux servers.
Installation, configuration and management of virtual machines using VMware ESX5.0 and
VMware vCenter5.0.
Promptly report incidents and issues to the appropriate personnel and obtain additional supporting
information to identify a successful plan for remediation.

System Administration:
Linux Servers: DNS, APPACHE, FTP, POSTFIX, SAMBA, Active Directory, NFS.
Platform: Windows server2003/2008, Windows 7, Ubuntu11.0 4/ 1 2 .04, Cent OS 5/6, Solaris 10.
Support: Software & Hardware; Installation a n d Troubleshooting
Network Monitoring: Monitoring of network services for errors and alerts on Nagios and Cacti.
Backup using Rsync.
IT services support and maintenance.
Installation and Configuration of FTP, SAMBA and Appache Server.
Management of Virtual Infrastructure using ESX 4.1 and VMware vCenter 4.1
ESX cluster configurations HA, DRS, vMotion, s torage vMotion.
Live migration and Cold migration.
VPN's Troubleshooting.
Assisting in troubleshooting and resolution of network problems.
Mobilink RBT Charging: Monitoring & maintenance of RBT charging and Logs.
Mobilink VAS Content Updating.
SMS alerts for Mobilink Power Tools Services
Monitoring and Troubleshooting of MO and MT messaging services
Internal correspondence with Commercial and Software Department
External correspondence
NOC, VAS and IN Teams of Mobilink, Ufone, Warid and Telenor ZED (VAS) Team
Level 2 Support
Jazz Bananas Applicatio n store
(http://www.jazzbananas.com) Mobizone Bangladesh