JOSEPH SIERMINSKI
Summerville,SC
Summary
High-energy Army service member and IT Support Specialist (25B) with a strong background in computer systems, network administration, cybersecurity, and customer service. Certified as an Information Systems Support Specialist through the U.S. Army Cyber Center of Excellence. Proven ability to troubleshoot technical issues, maintain secure systems, and support mission-critical operations in fast-paced environments. Seeking an mid-level IT support or cybersecurity role to further develop technical expertise while continuing professional education and training.
Overview
6
6
years of professional experience
7
7
Certifications
Work History
Information Technology Specialist
324th HHC Signal BN
06.2020 - Current
- Trained in networking skills and computer system concepts with different consoles and peripheral equipment.
- Responsible for solving complex issues and maintaining numerous communications and computing equipment.
- Assisted staff members with computer issues and technical on-boarding (sets up profiles, email accounts, group permissions and password management).
NMCI Network Engineer
Prime Technical Services Inc.
10.2024 - 04.2025
- Monitored network capacity and performance to diagnose and resolve complex network problems.
- Designed, implemented, and maintained secure and reliable computer networks to support efficient communication and business operations.
NMCI Field Service Technician
Apex Systems
12.2023 - 10.2024
- Delivered comprehensive on-site technical support, troubleshooting and resolving hardware, software, and network issues to maintain system reliability and user productivity.
- Managed helpdesk operations, prioritizing tasks according to urgency and impact on overall business functions.
- Set up network profiles, security permissions and file sharing systems.
ISP/OSI Field Technician
Day & Zimmerman
07.2023 - 12.2023
- Safely and efficiently performed highly detailed hands-on labor. Installation Copper/Fiber cabling, and analog/VOIP phones; Showed effective and vital trouble shooting skills.
Education
BACHELORS - Bachelor of Science, Cybersecurity And Information
Western Governors University
Salt Lake City, UT12-2026
Highschool Diploma -
Grovetown High School
Grovetown, GA07-2020
Skills
Knowledgeable in the maintenance, installation, configuration and management of computer systems and hardware in both classified and unclassified environments
Trained in the replacement and ordering of various damaged and non-operational communications equipment and on flooring and tiling products/tools
Demonstrated attention to detail – maintains security and safety standards on a multitude of military and service industry operational equipment
Strong verbal and written communication Responsible for reporting equipment status (Hardware and Software)
Trained in the maintenance and patch management of information systems
Certification
CompTIA Security+
Timeline
CompTIA Project+
01-2026
Linux Essential | LPI
12-2025
ITIL v4 Foundation in IT service Management
03-2025
Cisco Certified Support Technician
01-2025
NMCI Network Engineer
Prime Technical Services Inc.
10.2024 - 04.2025
CompTIA Network+
09-2024
CompTIA A+
08-2024
NMCI Field Service Technician
Apex Systems
12.2023 - 10.2024
ISP/OSI Field Technician
Day & Zimmerman
07.2023 - 12.2023
CompTIA Security+
04-2023
Information Technology Specialist
324th HHC Signal BN
06.2020 - Current
BACHELORS - Bachelor of Science, Cybersecurity And Information
Western Governors University
Highschool Diploma -
Grovetown High School