Mazhar Khan
800 W Rand Rd , Arlington Height
Summary
IT professional with 13+ years of experience in system administration, Linux environments, and enterprise infrastructure support. Skilled in troubleshooting hardware, storage systems, and data center operations in high-availability environments. Strong background in enterprise systems and operational support. Currently expanding expertise in containerization and automation.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Data Center Technician
Southwest Airline
02.2021 - Current
- Deploy routers, switches, servers, and firewall equipment into Data Center.
- Manage stack and racks, Run fiber cables and copper cables for servers/switches/routers/firewalls.
- Perform service tasks, maintain, and troubleshoot servers, switches, routers in a highly available data center environment.
- Provide on-call data center admin support.
- Provide support to incidents, changes, and technical assistance requests received through various channels such as e-mail, web or phone.
- Install and uninstall PCIE Network module from Dell EMC Power Edge 630,650 and 700 Series
- Address the escalation problems for routing, switching, servers, WAN connectivity issues using ticketing system ServiceNow.
- Installation, configuration and administration of Windows Servers 2016 and 2019, Active Directory, FTP, DNS, DHCP, Linux OS under various LAN and WAN environments.
- IP Addresses and Subnet mask configure into router and switches.
- Swap HDD disk, memory, reseat SFP’s and power supply into devices.
- Trace and update devices through Device42 Asset Management dashboard.
- Escorting different vendors as per request.
- Client: Southwest Airline
Data Center Hardware Technician
Experian
01.2025 - 05.2025
- Deploy routers, switches, servers, and firewall equipment into Data Center.
- Manage stack and racks, run fiber cables and copper cables for servers/switches/routers/firewalls.
- Perform service tasks, maintain, and troubleshoot servers, switches, routers in a highly available data center environment.
- Provide on-call data center admin support.
- Provide support to incidents, changes, and technical assistance requests received through various channels such as e-mail, web or phone.
- Address the escalation problems for routing, switching, servers, WAN connectivity issues using ticketing system ServiceNow.
- Swap HDD disk, memory, reseat SFP’s and power supply into devices.
- Escorting different vendors.
- Client: Experian
- 2025
System Administrator
KeyBank
Tulsa, OK
08.2017 - 12.2020
- Installed, configured, migrated, and maintained enterprise solutions on Windows 2012, 2016 and 2019 servers.
- Hands on experience designing and implementing Active Directory and Network Fundamentals protocols such as TCP/IP, DNS, DHCP and Group Policy.
- Supported and troubleshot functional and Developer Issues.
- Performed Active Directory Administration, configuration and maintenance as required.
- Provided effective support to incidents, changes, and technical issues received through various channels such as e-mail, web, or phone.
- Assisted in the installation and support of Desktop and PC Users (Hardware and Software).
- Installation of RHEL Linux 6.8 operating system on Dell server.
- Installation of RHEL RPM/Packages into Dell server.
- User, Group management for the Linux servers.
- Installed Database Patches into Oracle Database 12c (Development Environment).
- Provided User Support - monitoring and troubleshooting system performance, server user related problems.
- Supported users to resolve their day-to-day issues related to OS, E-mail, account issues, hardware, etc.
Oracle DBA/Linux Administrator
Inbox Business Technologies
Pakistan
05.2014 - 12.2016
- Troubleshoot Linux/Windows Server and Oracle E-Business Suite Database and Oracle Database.
- Upgraded Oracle databases to new version.
- Installed RPMs/Packages for various other purposes across various Red Hat Linux machines.
- Installed Patches on database and Oracle application.
- Migration of Oracle Linux from 32 bit to Oracle Linux 64 bit.
- Created and managed global Oracle EBS Database license pool through processes and policies.
- Led DBA team and partnered with application/business to execute continuous engagement plan to keep Oracle currency in-line with Oracle support including Oracle EBS (11.5.1 to R12.1.3) and databases.
- Enhanced internal customer satisfaction through innovative approaches and process improvements through dialogue with stakeholders and partners globally.
- Implemented Oracle Advance Collection implementations, upgrade projects, migrations and provided all infrastructure support for Oracle Application 11i and Release12.
- Led multiple Migration project of Oracle EBS from Linux 32 bit to Linux 64-bit.
- Cloning and backup of Databases and Linux Operating system and Oracle E-Business Suite Application
- Configure RAID 10 on Oracle Linux version 7.4
- Clients: Bank al Habib, United Bank Limited, Royal Ceramics Lanka (RCL, Sri Lanka), TCS Express
Oracle DBA/Linux System Administrator
IACS Consulting Solutions
Pakistan
02.2011 - 04.2014
- Installation of RedHat Linux (4/5/6/7) on Virtual Machines and on Various IBM Blade Server.
- Configured and managed Windows Server 2008/2012.
- Installed packages on Linux and installed software on end user PC.
- Troubleshoot Linux Server
- Migrated Linux 32 bit to Linux 64 bit.
- Installed Oracle database on Linux.
- Upgraded Oracle database to new version (11g, 12c).
- Implement Oracle Data Guard 11g on Production server
- Backup and Cloning of Databases, OS and Oracle EBS application
- Clients: Faysal Bank, Dubai Port World, Hino Pak
Education
Bachelor of Commerce -
University of Karachi
Skills
- Data Center Operations
- Rack and Stack
- Cabling
- Server Administration
- Linux Administration
- Maintenance and repairs
- Hardware diagnostics
- System Monitoring
- Network Troubleshooting
- Hardware Break-Fix
- Switches and routers
- Smart Hands Support
- Asset Management
- ServiceNow
- RAID 10
- End User Support
Certification
- RHSCA (RedHat Certified System Administrator)
- CCNA
- Oracle Database 10g Certified Professional
- ServiceNow System Administrator
- Scrum Master Certified (CSM)
Training in Progress
Dockers
Timeline
Data Center Hardware Technician
Experian
01.2025 - 05.2025
Data Center Technician
Southwest Airline
02.2021 - Current
System Administrator
KeyBank
08.2017 - 12.2020
Oracle DBA/Linux Administrator
Inbox Business Technologies
05.2014 - 12.2016
Oracle DBA/Linux System Administrator
IACS Consulting Solutions
02.2011 - 04.2014
Bachelor of Commerce -
University of Karachi