Rahman Sharief

Results-driven Senior System Administrator with 13+ years of hands-on experience managing enterprise Windows Server, Active Directory, Group Policy, DNS/DHCP, VMware, and network security infrastructure. MCSE-certified IT professional with a strong record of maintaining 99.9% system uptime for 500–1,000+ end users across academic and corporate BPM environments. Proven expertise in L1/L2 incident resolution, patch management (WSUS), endpoint security, system hardening, firewall configuration, and ServiceNow ITSM.

Experienced in cross-functional collaboration, vendor management, IT asset management, and Citrix application support. Seeking a Senior System Administrator or IT Infrastructure role in Bangalore.

Senior System Administrator - JAIN University – Faculty of Engineering & Technology - Kanakapura Road, Bangalore

(2016-11)

Managing IT infrastructure for 1,000+ users across academic and administrative departments

• Administer and maintain Windows Server 2016 and Ubuntu Linux environments ensuring 99.9% system uptime for all academic and administrative systems.
• Manage Active Directory (AD DS) and Group Policy Objects (GPOs) for 1,000+ user accounts, OUs, computer accounts, and permission structures; enforce security baselines across all domain-joined systems.
• Configure and maintain DNS, DHCP, VLANs, load balancers, and proxy servers for optimal network performance across the university campus.
• Implement and enforce network security policies including firewall configuration, patch management (WSUS), endpoint protection, system hardening, and intrusion detection systems (IDS).
• Monitor system health, security events, and performance using Event Viewer and Syslog; proactively identify, escalate, and resolve L1/L2 incidents.
• Manage software installations, licensing compliance, IT asset inventory, and vendor relationships for hardware and software procurement.
• Plan and execute hardware upgrades, system imaging, and replacements to maintain operational standards and reduce downtime.
• Led Siemens Capital Lab setup (Jan–Feb 2022): deployed EV design software, license server, and full Windows domain integration across all workstations.
• Deployed structural analysis simulation software (Mar–Apr 2022): integrated all workstations with Windows domain and central license server.

Desktop Support Engineer – L1/L2 - WNS Global Services Pvt. Ltd. - Bangalore

(2013-08 - 2016-11)

Enterprise BPM environment | Supporting 1,500+ end users

• Delivered L1/L2 technical support to 1,500+ users for desktops, laptops, and business applications; resolved Wintel-related issues via RDP and remote support tools within SLA.
• Managed user account administration in Active Directory; installed and configured Windows OS, MS Outlook, network components, and business applications.
• Created and maintained Netbackup policies for reliable data backup and recovery; managed antivirus and endpoint protection updates across all endpoints.
• Resolved Citrix application issues; tracked and closed incidents through ServiceNow ITSM; coordinated with cross-functional teams for high-priority resolutions.

Desktop Support Engineer - FocusInfoTech Pvt. Ltd. - Bangalore

(2011-07 - 2013-06)

• Installed and configured Windows operating systems and software applications across client desktops and laptops; performed system imaging and remote desktop setup.
• Provided end-user technical support and maintained service quality standards; collaborated with team to resolve complex hardware and software issues.

IT Apprenticeship Trainee - Hindustan Aeronautics Limited (HAL) - Bangalore

(2009-09 - 2010-09)

Gained hands-on experience in a government defence IT environment: network device management, PC maintenance, antivirus updates, printer configuration, and internet troubleshooting.

Bachelor of Computer Applications - Computer Applications - Indira Gandhi National Open University (IGNOU)

Diploma - Electronics & Communication - Board of Technical Education, Bangalore