Systems Administrator

GREGORY A. JESIONOWSKI

***** ** ***** ** *** ***, Bothell, WA 98011 Cell: 760-***-**** *******.*.***********@*****.***

SYSTEMS ADMINISTRATOR

Exemplified excellence in systems support and optimization

Proficient systems administrator experienced in configuring, maintaining, and managing server infrastructures on various platforms (Unix, Red Hat Linux, Windows). Effectively planned, installed, configured, repaired and optimized network infrastructure to consistently achieve high availability and performance.

HIGHLIGHTS OF EXPERIENCE

VMware

DNS Administration

Red Hat Linux

Cisco Routers

Hyper-V

Unix Administration

Microsoft SQL

Active DoD Secret Clearance

Windows Server

VMware vSphere

Server Administration

ESXi Server Management

Lean Six Sigma

Java Virtual Machine (JVM)

Dynamic Host Configuration Protocol (DHCP)

Windows Deployment Services (WDS)

PROFESSIONAL EXPERIENCE

U.S. MARINE CORPS 29 Palms, CA – 2013 to 2017

Systems Administrator (August 2014 to January 2017)

Performed troubleshooting within Unix, Linux (Red Hat), and various Microsoft environments in order to meet and exceed the demands of customers from all departments of the organization.

Utilized VMware, Hyper-V Manager, and ESXi Blade servers, using remote support when necessary. Supported multiple virtual server environments.

Active Directory, Microsoft DHCP, and DNS services proficiency exercised in the administration of nine systems using both military and commercial off-the-shelf hardware.

Supervised the design and configuration of Local Area Networks and Wide Area Networks featuring over fifty users and varying server connections, satisfying end-user needs.

Coordinated support for over $9.5 million worth of equipment which is used to train entry-level personnel to perform tasks and duties in their related career field.

Through EventSentry and Wireshark master consoles were operated to monitor equipment performance as well as coordinate computer access.

Trained and mentored junior staff in all responsibilities and aspects of the work environment to develop their skills and form a cohesive unit of employees.

Planned for, supervised, and facilitated the complete system overhaul of the Common Aviation Command and Control System (CAC2S), saving the United States Marine Corps approximately $80,000 in contract support for outsourced data system maintenance.

Completed numerous Theater Battle Management Core System (TBMCS) builds and upgrades to facilitate hundreds of entry level students to be trained on the system.

Developed and implemented data back-up plan for over 10 terabytes of data in an Oracle based database.

Assisted the Maintenance Chief in the inventory of over 280 Principle End Items valued in excess of $100 million in order to avoid losses and ensure availability of equipment.

Systems Administration Chief (November 2015 to January 2017)

Supervised a team of highly trained Marines in order to complete a system build while under very strict time constraints. This included managing shifts and maintaining morale under a tight deadline.

Ensured all team members were qualified and prepared to complete their given tasks, increasing productivity and reducing the risk of failure and waste during the maintenance cycle.

Provided timely training to those that required it in order to maximize the potential of the team as a whole and the confidence of each individual.

Received an individual Letter of Commendation from the Commander for accomplishing full system operability within twenty-four hours of a sudden power outage that shut down three live systems valued at over $40 million.

Raised the quality of the workplace to a level that received accolades from regional inspectors by improving processes and delegating tasks more evenly among the staff. Three team members also received Letters of Commendation from the commanding General for their performance during the inspection.

EDUCATION & CERTIFICATIONS

Tactical Data Systems Administrator Course (USMC)

Computer Hardware

Network Systems Administration

Maintenance Management

Project Management

Windows Administration

Unix Administration

Lean Six Sigma Yellow Belt

Leading Marines Course

Cyber Awareness Course

Department of Defense Information Assurance Course

Completed 11 Marine Corps Institute Courses

Basic Electronics Course

AC/DC Circuits

Digital Electronics

Hardware Troubleshooting

10620 NE 175th St Apt 207, Bothell, WA 98011 Cell: 760-***-**** *******.*.***********@*****.***

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