System Administrator

System Administrator

Leidos' Corporate Information Security Office, reporting through the Digital Modernization sector, is seeking a System Administrator to support various classified environments. The successful candidate will be responsible for maintaining, securing, and supporting complex classified information systems, while ensuring compliance with security protocols and regulations.

All work will be performed on site at the St. Petersburg, FL office.

Active DoD Secret clearance is required to qualify for consideration. Eligibility to be cleared to Top Secret and Special Access Programs, post‑hire, is also required.

• Ensure programs maintain favorable standings with government regulations and maintain compliance artifacts such as vulnerability scans, STIGs, SCAP scans, and documentation.
• Install, configure, and sustain a mixture of Windows and Red Hat‑based systems.
• Work under guidance of the Sr. ISSE to accomplish time‑sensitive projects such as infrastructure buildouts, complex software installations, customer and sub‑contractor coordination, and end‑user outreach.
• Other duties as assigned.

• Bachelor's degree with 4–8 years of experience, Associate degree and 6–10 years of experience;
  Master's degree and 2–4 years of experience, or equivalent relevant industry‑standard certifications and experience may be considered in lieu of a degree.
• Must be a U.S. Citizen with a current Active Secret security clearance to be considered along with sustained ability to be cleared to Special Access Programs and ability to obtain Top Secret security clearance.
• Must have a DoD 8570 IAT level II or higher certification such as CompTIA Security+.
• Experience operating in a Windows‑based domain environment to include management of workstations, Active Directory, and DNS.
• Familiarity navigating a Windows‑based operating system to include knowledge of TCP/IP, software installations, running predefined scripts, accessing SMB shares, remote system management, NTFS permissions, and common administration tools.
• Basic knowledge of Linux‑based distributions and willingness to complete full RHCSA training within a year.
• Knowledge of change management procedures, roles, and responsibilities.
• Experience with the Risk Management Framework (RMF) and maintaining compliance artifacts such as SCAP scans, STIGs, and Nessus vulnerability reports.

• Red Hat Certified System Administrator (RHCSA) certification.
• Cisco Certified Network Administrator (CCNA) certification.