SUMMARY

• 5 years of Systems Administrator experience in multi - platform Linux, Windows and VMware environments, wif hands-on expertise in networking and systems integration.
• Operating Systems: Linux (CENTOS 6/7/8 and RHEL 6/7/8) + Windows (7, 8, 10, 2008,2012, 2016) + VMware ESXi
• Integrate the computer systems, software, and network wif the tactical applications. Maintain a multi-platform Linux/Windows knowledge base in support of leading-edge infrastructure software products and systems.
• Provide technical and system administration support through troubleshooting, identifying, and isolating issues, conducting root cause analysis, and implementing appropriate solutions to software and system anomalies as they occur.
• Experience in the implementation and troubleshooting of Linux network services such as NFS, NTP, SSH, DNS, Apache, MariaDB/MySQL, SAMBA and CIFS.
• Manage package install/upgrades using YUM and RPM.
• Experience in backend solution, day to day system admin and monitoring, file system management and disk management.
• Experience in migration of applications and database servers.
• Experience in MS SharePoint.
• Resolve Linux system errors and crashes, disk space problems, huge file system and full disk errors.
• Perform scans using NESSUS and remediating vulnerabilities in Linux and/or Windows environments.
• Perform OS hardening by applying STIG, SCAP results and resolve security vulnerabilities.
• Operate and maintain virtual environments technologies in VMware on/off-premises.
• Expert knowledge of and ability to apply advanced technical principals, theories, and concepts using Microsoft Server and VMware VCenter, GPO’s, and Active Directory Services.
• Hands-on experience wif reviewing system logs and events to resolve issues.
• Proficient wif troubleshooting Windows 10 and Linux OS computing environment.
• Leveraged skills in TCP/IP, DNS, DHCP and basic Network Troubleshooting.
• Installed and configured a LAN wide NAS/SAN used for creating LUNs and attaching to Windows and Linux servers.
• Experience in Virtualization (VMware Esxi, VMware workstation & Oracle Virtual Box).
• Hosting and configuring (Installing VMware tools) of ESXI host guest VMs.
• Expanding and creating ESXI hosts data stores from iSCSI LUNs published from a NAS server.
• Experience in Package Management, Patching, Monitoring and Security Hardening of Servers and Windows workstations.
• Experience in transferring files using SCP, WinSCP and editing text using VI Editor.
• Experience in supporting a LAMP suite, web server (Apache) and database (MySQL/MariaDB) installation and configuration.
• Proactively monitoring (monitoring tool NagiosXI) infrastructure for potential issues or impacts to operations users.
• Experience in supporting Atlassian products, JIRA & Confluence.
• Experience in Microsoft 365 platform.
• Able to provide support for maintenance and change requests for all user-facing devices and systems.
• Ability to develop and maintain system/security documentation as needed.
• Ability to work cooperatively and to function well in a team environment.
• A fast learner, who is multi-tasking, pays attention to details, wif an ongoing desire to learn new Technology.

PROFESSIONAL EXPERIENCE

Systems Administrator

Confidential

Responsibilities:

• Perform multiplatform server builds on VMware ESXi & physical servers, which include Windows Server 20012, 2016, Linux (Centos 6/7/8 and RHEL 6/7/8).
• Integrate the computer systems, software, and network wif the tactical applications. Maintain a multi-platform Linux/Windows knowledge base in support of leading-edge infrastructure software products and systems.
• Provide technical and system administration support through troubleshooting, identifying and isolating issues, conducting root cause analysis, and implementing appropriate solutions to software and system anomalies as they occur.
• Perform scans using NESSUS and remediating vulnerabilities in Linux and/or Windows environments.
• Perform OS hardening by applying STIG, SCAP results and resolve security vulnerabilities.
• Produce installation and configuration documentation using Confluence for all supported infrastructure software and operating environment.
• Support the building, creation, and deployment of OS images in a Linux/Windows environment.
• Produce and execute test plan procedures for upgrades and installation of new guest VMs on vsphere.
• Install RHEL 7/8 on new servers using standard and advance installation methods (kickstart) on x86 systems as needed.
• Experience in transferring files using SCP, WinSCP and editing text using VI Editor
• Proactively monitoring (monitoring tool NagiosXI) infrastructure for potential issues or impacts to operations users.
• Experience in running Ansible-Playbook.
• Configure storage pools on Windows servers to serve as iSCSI SAN for failover cluster.
• Experience in Package Management, Patching, Monitoring and Security Hardening of servers and workstation in a Windows/Linux environment.
• Windows 7, 8 and 10 NOS imaging, configuration, and software deployment.
• Performing server administration task (user accounts management) as needed in a Windows/Linux environment.
• Assign NTFS and Share permissions on network shares in a Windows environment.
• Manage Active Directory (AD) Users and Computers.
• Install new / rebuild existing VMWARE ESXi hosts and guest VMs.
• Provide hosts system hardening by encrypting data at rest in a Windows (Bitlocker) / Linux (LUKS) environment.
• Perform troubleshooting for computer break fix processes and software upgrades.
• Ensure the daily optimal performance of all computer systems.
• Use ticket tracking system such as Service Now and JIRA to access assigned tickets and close them.
• Maintain end user accounts, permissions, access rights and network connectivity.
• Perform remote troubleshooting using software like MS Team, Zoom, Smartty, Putty and RDP in a Windows/Linux environment.
• Integration of Windows/Linux workstation to Active Directory (AD).
• Troubleshoot issues arising from PIV card authentication in a Windows/Linux environment.
• Utilizes available tool, such as remote Assistance, email and public technical documentation and guidance to resolve technical problems.
• Follows up wif escalation points of contact to ensure satisfactory resolution of end user technical problems as needed.
• Logs call information into the Star ticket system for tracking and escalation.

Confidential, Sterling, VA

Deskside Support Technician- IT specialist

Responsibilities:

• Teamwork involvement in the IRS refresh project.
• Worked on the IRS new hire Project fiscal year 2018-2019 and current 2019-2020.
• Configuring and deploying new employee Laptop daily for job purposes.
• Migrating operating systems daily on workstations for optimal performance.
• Encrypting/decrypting confidential files in work environment for security measures
• Resolving numerous IT technical issues daily on shift period.
• Operating ticketing system to TEMPeffectively assist client encountering IT technical issues.
• Technical support on as-needed basis to include: Hardware/software installation, Upgrades and maintenance.
• Maintaining Network file sharing and securing network printers by Whitelisting equipment and reserving allocated IP address.
• Clearance / Public trust candidate.
• Manage IRS inventory of IT equipment.
• Management shipments of inventory and direct warehouse staff on where to store inventory.

Confidential

Security Professional

Responsibilities:

• Communicates and provide excellence customer service to clients.
• Scan badges of Authorized employee and contractors.
• Verify vehicles for Explosives.
• Monitor, observe and report CCTV records to ensure the safety of clients’ properties and employees.
• Patrol the office environment to make sure it is free from unauthorized person.
• Issue out ID tags and direction to visitors’ vehicles.
• Assign sticker to contractors and visitors’ vehicles.
• Responding to electronic sensor alarms.
• Reports any suspicious activity on campus, check unidentified visitors, answers call from personnel’s if they need security or safety assistance.