TS/SCI Eligible Systems Administrator — Windows & Linux

Radiance Technologies, Inc.; Ohio; On-site; USD 95,000 - 130,000; Full time

Benefits offered by this job

Employee ownership

Generous 401K

Full health/dental/life/vision

Educational reimbursement

Job summary

Radiance Technologies, Inc. is seeking a Client Systems Administrator to support the National Air and Space Intelligence Center (NASIC) in Dayton, OH. The role requires strong Windows and Linux administration skills and hands-on cybersecurity operations to safeguard both classified and unclassified DoD networks.

The ideal candidate will maintain enterprise infrastructure, patch systems, and ensure 24/7 operational continuity. Normal business hours with occasional after-hours support.

Qualifications

• Active Top-Secret clearance with SCI eligibility.
• Experience in identity and access controls.
• 5+ years of relevant experience with a Bachelor’s Degree in Computer Science/IT, or 10+ years with an Associate degree.
• Experience administering Red Hat Enterprise Linux and Windows Server in a classified environment.
• Knowledge of security operations including safeguards administration and information assurance.
• Security+ (minimum) or higher certification.

Responsibilities

• Perform installation and maintenance of Windows and Linux servers and network systems.
• Provide backup and recovery services; manage file systems and disk space; test updates to enterprise system software.
• Develop and document best practices and standard operating procedures.
• Performance and network tuning.
• Enforce cybersecurity compliance practices including patching, remediation, and vulnerability management.

Skills

Top-Secret clearance with SCI

Identity and access controls

Red Hat Enterprise Linux

Windows Server administration

Cybersecurity operations

Security+ or higher certification

Information assurance knowledge

Education

Bachelor’s Degree in Computer Science/Information Technology

Associate Degree in Information Technology or similar

Tools

PKI infrastructure

Tomcat/Apache webservers

Job description

Radiance Technologies, Inc. is seeking a Client Systems Administrator to support the National Air and Space Intelligence Center (NASIC) in Dayton, OH. The role requires strong Windows and Linux administration skills and hands-on cybersecurity operations to safeguard both classified and unclassified DoD networks.

The ideal candidate will maintain enterprise infrastructure, patch systems, and ensure 24/7 operational continuity. Normal business hours with occasional after-hours support.