Resume

Summary

Results-driven Data Systems Engineer/Administrator with a focus on cyber security. Strong technical abilities and leadership skills. Demonstrated experience in managing and maintaining secure enterprise environments. Insightful background as a Technical Director in a Division Network Operating Center during military service.

Certifications/Training

Security +
Active Secret Clearance
AWS Cloud Practitioner
ESS ePO Administrator 201, 301
Malware Analysis and Introduction to Assembly Language IBM course

Skills

Microsoft Servers and Linux servers
Exchange, DC, WDS, WSUS, etc.
Scripting with PowerShell, bash, SQL, and Python
VMware administration
SQL administration
BMC Client management
Hypervisors working with different virtual environments
Networking
Tunneling (DMVPN and Flex VPN)
Stigs and other security implementations
FortiGate firewalls
Nessus and Security center
Creating server and networking diagrams
Team building

Work Experience

Systems Engineer - Teksystems

December 2022 - Present

Manage Windows and Linux systems, ensuring smooth operations and implementing daily processes.
Administer EPO and work with SAS for effective security management.

Cyber Security-focused Systems Engineer - American College of Radiology

July 2021 - December 2022

Collaborated with multiple teams in a hybrid environment to ensure optimal product security.
Played a key role in patch management, monitoring, and troubleshooting within a Windows environment.
Utilized strong familiarity with ticketing systems for efficient task management.
Performed patching and maintenance on SQL Servers to ensure data security.

Systems Engineer - ManTech

February 2021 - July 2021

Worked in a multi-vendor environment involving Windows server, CentOS/Red Hat, Palo Alto firewalls, and Cisco routers and switches.
Actively participated in an agile development cycle, working closely with the development team to deliver secure products to clients.
Provided system administration support to Linux-based high-performance computing platforms.
Managed a local RPM repository and wrote queries and scripts for direct interaction with SQL databases.

Data System Administrator - USMC

2019 - February 2021

Built and maintained secure Windows desktop and server images.
Demonstrated extensive experience in Windows server administration.

Education

High School Diploma - 2017 - Maryville High School - Maryville, MO

Websites

Personal website: www.mericsheehan.com
GitHub profile: github.com/sheemer/Scripts