Cybersecurity Systems Administrator

Key Responsibilities:

 Develop, administer and maintain the integrity and security of Linux and Windows-based

servers and systems.

 Set up administrator and service accounts, maintaining system documentation, tuning

system performance, and installing system-wide software.

 Evaluate, improve, and maintain the information security throughout the Linux

infrastructure.

 Implement and manage Risk Management Framework (RMF) processes and

documentation including continuous monitoring and executing security controls.

 Perform regular system updates and patch management to mitigate vulnerabilities.

 Monitor system performance and troubleshoot issues to ensure minimal downtime.

 Implement and manage security tools and technologies such as firewalls, intrusion

detection systems, and encryption.

 Conduct regular security audits to identify potential risks and develop mitigation

strategies.

 Collaborate with the cybersecurity team to align IT infrastructure with established

security policies and procedures.

 Provide technical support, training and guidance to users, addressing any system related

concerns.

 Document system configurations, changes, and standard operating procedures.

 Participate in disaster recovery planning, backup operations, and data restoration when

necessary.

 Provide guidance and technical training to less experienced staff.

 Ensure systems are compliant with ITAR, EAR, and CUI regulations when applicable.

 Coordinate with the Information System Security Manager (ISSM) and Facility

Security Officer (FSO) on system security compliance.



Qualifications:

 Bachelor's degree in Computer Science, Information Systems, or a related field, or

equivalent experience.

 Minimum of 5 years of experience in IT systems administration with a focus on security.

 Active Secret clearance is required.

 Experience with Risk Management Framework (RMF) and security compliance.

 Strong knowledge of Linux operating systems and associated hardware platforms.

 Excellent problem-solving skills and the ability to work under pressure.

 Strong communication and documentation skills.

 Strong understanding of network infrastructure and protocols.

 Experience with virtualization technologies and containerization.

 Familiarity with the Risk Management Framework and its application in securing IT

systems.

 Effective communication skills, both written and verbal.

 Ability to work independently as well as collaboratively in a team environment.



Preferred Skills Qualifications:

 Top Secret clearance with a CI Poly.

 CISSP, RHCSA, RHCE, CompTIA Security+, Linux+ or similar certifications.

 Experience with automation tools and scripting languages.

 Familiarity with virtualization technologies.

 Prior experience working in a defense or government contracting environment.