Marcus Cobb
Manassas
Summary
I currently hold a security clearance.
Seeking position as Sr. system Administrator/engineer tier 2 to support all IT needs as technology advances.
Results-driven Senior System Administrator with extensive experience in diagnosing hardware, software, and network issues. Skilled in team collaboration and documentation, contributing to enhanced operational efficiency and client satisfaction.
Overview
16
16
years of professional experience
Work History
Senior Platform Administrator
Nightwing
04.2025 - 02.2026
- Troubleshot complex system issues to ensure minimal downtime and optimal performance.
- Collaborated with IT teams to establish best practices for system configurations and maintenance protocols.
- Upgraded operating systems and computer software to perform compatibility with programs.
- Scoped out projects involving system migrations or installations from start-to-finish, ensuring timelines were met without compromising quality standards.
- Installed and maintained hardware and computer peripherals to store tangible components.
- Diagnosed and troubleshot hardware, software and network issues.
- Installed and configured operating systems and applications.
- Installed, configured and maintained computer systems and network connections.
- Tested new software and hardware prior to deployment.
- Assisted in the configuration of hardware and software systems according to organizational standards.
- Provided monthly laptop scans used in fields and stationery environment.
- Developed testing for open fram infrastructure. Multi meter tool of intent.
- Installed Cat6 and Cat5 fiber specific to affiliates needs.
Senior System Analyst
Hoplite Solutions
02.2022 - 04.2025
- Analyzed system requirements to enhance operational efficiency and support business objectives.
- Collaborated with cross-functional teams to develop and implement software solutions tailored to client needs.
- Conducted thorough testing and validation of system changes, ensuring compliance with industry standards.
- Led user training sessions, promoting adoption of new technologies and improving team performance.
- Created troubleshooting documentation and distributed it team members and stake holders for final assessment.
- Resolved issues and escalated problems with knowledgeable support and quality service.
Senior System Administrator
General Dynamics IT
02.2010 - 02.2022
- Monitored network performance, diagnosing issues and implementing solutions to maintain connectivity.
- Verified performance and security of network systems met the needs of network users
- Provide technical system support in the management of hardware and software configurations and architectures
- Provided mentorship to junior administrators, fostering skill development and knowledge sharing within the team.
- Evaluated new technologies, advising management on potential integrations to improve IT service delivery.
- Resolved issues and escalated problems with knowledgeable support and quality service.
- Worked with users to determine areas of technology in need of improved usability.
- Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.
Education
Information And Communication Technology
Strayer University
Woodbridge, VA01-2007
Skills
- Customer service
- Data entry
- Attention to detail
- Recordkeeping and file management
- Administrative support
- Documentation and reporting
- MS office
Timeline
Senior Platform Administrator
Nightwing
04.2025 - 02.2026
Senior System Analyst
Hoplite Solutions
02.2022 - 04.2025
Senior System Administrator
General Dynamics IT
02.2010 - 02.2022
Information And Communication Technology
Strayer University