GEORGE KOTSOU

adc310@r.postjobfree.com 734-***-****

SUMMARY

Experience with: Linux, Windows, VMware, F5, WebLogic, Cisco, AD, NFS, DNS

Ability to troubleshoot various operating systems including: Linux (RHEL, SLES, Debian), Windows, VMWare ESXi, Oracle Virtual Machine, SUN Solaris, Postfix

Linux and Windows shell scripting

Developed 2 LAMP Stack applications for Management of HP labs.

Created Linux VM images for Proof of Concept lab Vendor applications

Excellent verbal / written skills - clear, concise, and professional

SKILLS

OS (Linux (RHEL, SLES, Debian), Windows, VMWare ESXi, SUN Solaris)

Virtualization (VMWare ESXi, KVM)

Design & Programming (VBA and VB6, PHP, MySQL, MSSQL, Apache)

Network & Support (Cisco, F5 Load Balancer, HP Procurve)

Services (DNS, NIS, NFS, SSH, VPN)

LAMP (Linux, Apache, MySQL, PHP)

Other: Bash and PHP Scripting, Software / Hardware, Troubleshooting, Visual Basic

CERTIFICATIONS

Cisco CCNA

Microsoft MCP

EXPERIENCE

-TEKsystems (Contracted to Ford)

Jan 2018 – Mar 2019

Modifying and additions to application using VBA (Visual Basic for Applications).

Responsible for updating VB Chemical lab reporting system where tubes and cartridges are used to collect and store vehicle emission data.

Created tables with VB script for Senior Chemist with read only privileges to view data.

Worked with Senior Chemist at Central Lab to identify issues and /or improvements to existing VBA application.

Created 'To / Do' list of improvements or 'bug / fix' list with application at that time.

Created list of improvements as well as Database Reports.

Meetings with stakeholders to approve each improvement or new applications.

Created new applications, reports, and bug fixes as was discussed.

Got sign-off from Senior Chemist as project was completed successfully.

-Stout (Contracted to Quantum Signal Inc.)

Sept 2017 – Dec 2017

Responsible for creating a RHEL Linux ‘DISA STIG’ image for ‘Linux SystemD’ host server configuration. This is the configuration standards for US Department of Defense, which the customer does business with and must comply with the specs as an operating system ships with each product sold.

Tools & Configurations: Centos 7.3, Oracle VBOX, Dracut FIPS, SystemD, Firewall, PAM Modules, Grub2 boot password protection, AIDE, SSH, SELinux, Audit Rules, Syslog, SCAP-Workbench, etc.

-Raymond James Financial

May 2015 – Nov 2016

- Linux, Apache jboss, WebLogic, Oracle software, F5 Load Balancer configurations

Systems Administrator (RHEL / Centos Linux).

Upgraded Oracle OBIEE and RMB Software Environments in Dev, QA, and production environments. Included dual application and Apache Reverse proxy servers, as well as F5 load balancer as frontend for each environment.

RHEL, setting up user accounts and profiles for application user accounts, Creating directories and user permissions, Setting up SUN java, Installing cobol runtime application. Configuring WebLogic. Monitoring application resources. Creating BASH scripts to run in crontab for deletion of older temporary files, including auto-email of results to application owners and developers.

Troubleshooting process issues.

-Tata Consulting (Contracted to GM)

Oct 2012 – Jan 2015

- Linux (RHEL), Windows, VMware, F5, WebLogic, Cisco, AD, NFS, DNS, DHCP, JIRA Issue Tracking

Lab Systems Administrator (RHEL, SLES Linux, Windows Server, SSH, KVM, Ansible).

Created Linux VM images for Proof of Concept lab Vendor applications. Monitoring Process, CPU, and Memory usage and other issues. Creating user accounts and profiles, creating Network File Systems and mounting on client host images. Setting up and managing LVM for customer application or data sizing. Created crontabs (BASH Scripts) for deletion of older temporary files.

As we only had 3 class C subnets in the Proof of Concert lab we had to closely monitor the usage of addresses. Created a PHP script that ran nightly using nmap port scan to discover if assigned addresses were still in use. If host IP did not respond for 3 straight nights my Cron Job script updated the database and sent an email to the owner asking if their testing was finished so that we may repurpose the IP address(s) .

Managing / Troubleshooting over 400 VMware Virtual guests.

Developed (LAMP) PHP web application for Hostname – IP, and Hardware Inventory Administration.

F5 Load Balancer configurations.

Oracle Web Logic Installations

-HP (Lab Administrator, Consultant)

June 2006 – Sept 2012

- Windows, Linux (RHEL), Solaris, ProCurve, Cisco, DNS, DHCP, PHP, MySQL, VMWare, Postfix

Worked with global real estate and IT groups in design and implementation of the new USA Lab facility. I supported all aspects of the Lab infrastructure, as well as configuration of Cisco Layer 3 switches.

Shared responsibility to keep Active Directory Wintel servers updated with patches. Developed application to schedule and run unattended patches for USA and India servers greatly reducing man hours previously used.

Created database driven LAMP (RHEL) system to accommodate Lab processes, including asset management, Service and Change requests, and DHCP client workstation reservations.

Established Lab network infrastructure for USA and India groups.

Designed and implemented Lab VPN for both sites while in India.

Responsible for the client hardware order process which is a vital part of the account service level agreement. We had to have at least 2 of any workstation in the Lab that GM had purchased.

Created Windows Service for server status. Reports and alerts include Server Patch status, Drive Space, AV patch status. All listings available from a web interface.

Awarded HP’s ‘e-Award’ on three different occasions for contributions / process improvements.

-TEKsystems (Contractor to HP - GM)

July 2004 – June 2006

- Windows, Linux (RHEL), Solaris, HP-UX, DNS

Test Bed environment (pre-Dev), installing hardware, OS (Windows, Linux, Solaris)

Installing vendor apps systems on RHEL, Windows, and Solaris. Troubleshooting Process, CPU, and memory issues of these applications via ulimit settings, and or app user profile settings.

EDUCATION

Bachelor of Business Administration, University of Michigan Dearborn

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