Christopher Kloiber

Operated Under contract to SunTrust/Truist Bank Patched and maintained Red Hat Enterprise Linux systems on various platform types

Spearheaded the replacement of outdated WebMethods 7.1 environments, upgrading platforms and services without disruption to business services Established 6 Development, 8 Staging, and 8 Production servers, performing initial environment configuration and data migration Deployed a Red Hat Satellite Server to streamline licensing and application updates Participated in On-Call duties dispatched through PagerDuty

Managed Linux systems both physical and hosted on VMware clusters and Xen/KVM hosts in multiple locations covering 120 virtual machines, ensuring proper Systems Administration and Virtualization practices Performed system patching/upgrades, application updates, and managed trouble tickets, focusing on Patch Management and IT Security Responded to high-priority incident tickets, diagnosing root causes, restoring services within SLA windows, and documenting troubleshooting steps for future reference

Served as the only Systems Administrator for the company, managing Sun Solaris and Linux servers, and overseeing Backup and Recovery and User Management Configured, managed, and supported systems services, architecture, and projects, ensuring IT Security and documentation best practices Installed, deployed, and managed Linux-based servers across several environments, including Virtualization and VMware technologies Created OS images for automated server installation/virtualization, streamlining Systems Administration processes Designed a Unix system, in close collaboration with an engineer, that duplicated all company functions on a single device using Linux containers (LXC) Reduced system downtime by implementing scheduled kernel patching and rolling reboots across servers, focusing on Patch Management and Network Management Automated server provisioning using shell scripts and Kickstart, cutting manual install time and improving documentation

Supported Linux based systems, VMWare ESX/ESXi platforms and support for Windows-based systems in large multi-domain environments and multi-national datacenters Completed troubleshooting and crisis-management of customer technical issues Performed systems design, included migrations, capacity planning, and product deployment Subject matter expert on installations and tools to help customers grow Assisted in inter-department communication and development from internal and customer perspective Supported and administered diverse systems included Apache, Nginx, MySQL, Postfix, Sendmail, Qmail, Exim, BIND, LVM, Cisco, SAN, Multipath, vCenter, vSphere, and vMotion

Responded to technical support requests via telephone and ticket system, performing troubleshooting and documentation Remotely diagnosed and repaired customer systems without accessing the system in question, focusing on IT Security and backup and recovery Performed hardware testing and certification for partners such as Dell, HP, and IBM, ensuring network management standards Traveled overseas to teach the Red Hat Certified Engineer course to new employees, highlighting communication and organizational skills Validated partner hardware compatibility by running automated certification suites on Dell and HP platforms, supporting systems administration Mentored junior support engineers on diagnostics and ticket handling, improving team response consistency and documentation practices

Monitored and maintained information systems for over 40 providers, ensuring availability and reliability for Commercial, Medicare, and Medicaid correspondence, using OpsView and Automate Deployed application configuration and code updates to Java application servers, enhancing system performance and operational efficiency Managed and responded to work tickets using Jira and Confluence, leveraging Claude Code for troubleshooting and ticket creation