Jean Mesidor

Seasoned Linux Administrator with a proven track record at IIA USPTO, excelling in network management and process improvements. Leveraged Ansible for workflow automation across 2000+ nodes, significantly enhancing system efficiencies. Expert in Red Hat environments and adept at leading full life cycle IT projects, demonstrating exceptional troubleshooting skills and a commitment to security and maintenance excellence.

Title: Linux Administrator

RHCSA

• Network Management
• Process and Systems Improvement
• Installation and Deployment
• Troubleshooting and Maintenance
• Full Life Cycle IT Project Management
• Red Hat 5X, 6X, 7X, 8 Centos
• BMC Remedy
• SolarWinds
• Splunk ITSI
• DNS
• Workflow Automation
• Server Configurations
• VPN and Remote Desktop
• Symantec NetBackup 7X
• HP ProLiant DL360, DL580
• Dell PowerEdge Servers
• Backup/Optical Drives
• Ansible
• AppDynamics

• IIA USPTO, Alexandria, VA, 05/01/15, Present, Linux Administrator, Perform systems administration, Build and create server builds in Cisco USC and VM build in Red Hat Virtualization RHEV environment., Create and manage user accounts with Identity Management Server (IDM)., Maintain, troubleshoot, and resolve network issues in a UNIX/Linux Systems environment., Import and export SIMs LUNs with LVM., Configure multi-pathing in Linux server including working with NFS, HTTP, and FTP., Capacity planning for servers, workstations, and storage., Resolve technical issues related to engineering infrastructure., Perform common systems administration tasks including but not limited to: adding users, configuring volumes, creating filesystems, configuring various system services, monitor system health., Server administration of local and remote systems via command line interface, monitoring logs, stop processes, disk space utilization, hardware failures, applying patches to comply with systems security., Migrate more than 2000 users from local accounts to IDM accounts within one week., Install and manage virtual machines using puppet, Foreman and KVM to configure, maintain and troubleshoot apache, tomcat, MYSQL, NFS, FTP servers., Used puppet automation master/agent architecture to install, manage and configure puppet resources and classes over 2000 nodes., Install puppet on servers and troubleshoot puppet errors via cli and gui., Troubleshooting on the command line., Manage and allocate storage to virtual machines using redhat virtualization manager., Completed over 25 tickets weekly that involved troubleshooting equipment hardware issues., Responsible for creating and managing user, group, and hosts access, rights and security using IDM., Monitor system performance (virtual memory, disk and cpu utilization)., Installed rpm packages on RHEL 5&6,7,8 servers., Give sudo access to users to perform limited administrative tasks., Reset password and unlock locked user accounts., Scan and identify provisioned LUNS from storage and configure new storage using LVM., Used Ansible as an automation tool to do the same task over and over or repetitive tasks., Creating playbook to patch multiple servers and update packages.
• Connections Data Inc, Laurel, MD, 07/01/18, 10/01/20, Systems Analyst, Systems Administrator for the 2020 Decennial Network Operations Center (NOC)., The NOC supports the 2020 Decennial Census which is scaled to support over 350,000 users and 50 Systems in a hybrid environment of AWS and on-premises Data Center., Responsible for remediating incidents, coordinating escalations, running support bridges, providing customer service and performing operations & maintenance activities., Actively monitoring over 5,000 endpoints and 250 Area Census Offices using Splunk IT Service Intelligence (ITSI), SolarWinds, Oracle Enterprise Manager (OEM), AppDynamics, VMware vRealize Operations Manager (vROPS), and Citrix Director., Responsible for completing BMC Remedy Service Request, Work Orders and Change Requests., Prepare and disseminate NOC notifications for infrastructure and application maintenance to leadership and support teams.
• Sunkloud Consulting, Laurel, MD, 01/01/14, 03/01/15, Linux Administrator, Created and updated documentation for current Patching process managing coordination with Lines of Business to schedule patching., Assisted with building, deploying, and configuring LAMP stack., Implemented ghost directives in Apache 2., Monitored server using Nagios and utilized RAID technology using LVM on Linux., Used Cron utility to manage systems and scheduling processes., Applied advanced technical knowledge to operate one or more technology areas (e.g. server administration, technical security management, performance management) or customer groups that are critical or high risk., Ability to multi-task, work independently and as a part of multiple teams., Experience in the VMware platforms and management tools., Identified capacity and performance needs for server infrastructure (compute, memory and disk)., Scripting knowledge with shell/bash., Maintained system performance by monitoring and analyzing system: tuning and troubleshooting system problems; escalating problems to the senior level., Responsible for assisting with software installations and/or troubleshooting programs/applications., Deployed virtual servers within one day including formatting file systems.
• Medstar Montgomery Hospital, Silver Springs, MD, 02/01/13, 01/01/14, Security Support Specialist, Managed troubleshooting at OS, Storage, and Network levels., Installed NetBackup, MySQL, PHP, Apache., Designated to perform day-to-day administration tasks and application specific technical support., Capacity planning for servers, workstations, and storage., Resolved technical issues related to engineering infrastructure., Working knowledge of network infrastructure relating to server., Performed common system administration tasks including but not limited to: adding users, configuring volumes, creating filesystems, configuring various system services, monitor system health., Server administration of local and remote systems via command line interface, monitoring logs, stop processes, disk space utilization, hardware failures, applying patches to comply with systems security., Instituted advanced problem-solving skills providing foreseeable solutions.