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Systems Administrator III

Fidelity Technology Services LLC
Lemoore, CA Full Time
POSTED ON 7/8/2026
AVAILABLE BEFORE 8/24/2026
Fidelity Technology Services, a wholly-owned subsidiary of Fidelity Technologies Corporation is seeking a System Administrator III (SA3) to support Aviation Simulation systems.

SA3 Qualifications
  • Seven (7) years of Cybersecurity (CS) experience in secure network and system analysis, procedure/test generation, test execution and implementation of computer/network security mechanisms.
  • Minimum of DOD Approved Baseline Certification as System Administrator Advanced in accordance with DOD 8570.01-M (i.e., Bachelor of Science Degree in Information Systems or Computer Science from an ABET accredited college or university, SecurityX or equivalent certification, Linux OS certification or comparable OS certification).
  • Expert knowledge in all basic and intermediate cybersecurity functions.
  • Extensive operational knowledge of vulnerability management tools such as Assured Compliance Assessment Solution (ACAS), Evaluate-Security Technical Implementation Guide (STIG) Tool and Security Technical Implementation Guides (STIG)
  • Extensive knowledge of CS methods, principles, and governance to ensure the secure integration, operation and maintenance of all training system environments, networks, and enclaves.
  • Working knowledge of CS instructions and practices (e.g., CJCSM 6510.01 series- Defense-In-Depth: Information Assurance (IA) and Computer Network Defense (CND); and DoDI 8500.1 Cybersecurity).
  • Ability to work independently to solve complex CS problems.
  • Ability to supervise and direct the work of subordinate Cybersecurity Workforce (CSWF) personnel.
  • Within six (6) months of assignment, complete Government sponsored training on the Trellix Endpoint Security System (ESS) and the DoD Assured Compliance Assessment Solution (ACAS) and be able to assist Government Cyber personnel in the configuration and sustainment of ESS, and able to execute, analyze and remediate vulnerability scans upon request by the ISSM/ISSO.
  • Within six (6) months of assignment, obtain a Computing Environment/Operating System certificate applicable to the training devices being supported.
  • Complete at least 20 hours of Continuous Professional Development (CPD) annually or what is required to maintain personnel certification; whichever is greater.

2. System Administrator SA III Duties and Responsibilities: The SA III duties and responsibilities include but are not limited to the following:
  • Plan and conduct CS continuous monitoring and associated analysis to maintain the CS posture of training system environments, networks, and enclaves
  • Lead local and remote teams within area of responsibility and/or support actions to quickly remediate, mitigate or otherwise resolve IA problems and vulnerabilities;
  • Ensure a POAM is created for each training systems platform that captures all open ACAS/STIG findings that could not be remediated or mitigated and submit the POAM to the ISSM/ISSO using the applicable/authorized transport.
  • Ensure accurate, complete, and timely reporting of scan results with associated artifacts using applicable Continuous Monitoring and Risk Scoring (CMRS) tools/platforms.
  • Assist ISSM/ISSO with the preparation and submission of RMF security authorization packages for initial and renewal Authorizations-to-Operate (ATO) for training systems.
  • Coordinate CS/ATO requirements with Government CS personnel, including the ISSM, ISSO, ISEO, and COR.
  • Assist ISSM/ISSO and ISE with the initial installation of system patches/STIGs for specific training systems platform (e.g., 2F201 device SN 124)
  • Coordinate and supervise subsequent installation of system patches/STIGs for remaining training device of that specific platform (e.g., remaining 2F201 training devices at a site)
  • Support the installation of new or modified hardware, operating systems, and software applications ensuring integration with CS security requirements for the training systems
  • Ensure the proper back-up of training systems software in preparation for installation of system patches/STIGs or other CS related maintenance actions.
  • Support, monitor, test and troubleshoot hardware and software CS problems to resolution.
  • Support the ISSM/ISSO, ISE and COR in the validation of CS technical and procedural documentation (i.e., System Administrator Guides).
  • Plan and perform scheduled CS specific preventive maintenance of computer systems and network components.
  • Develop and conduct initial, annual and refresher CS training for subordinate CSWF personnel; and assist Site Manager in the preparation of CS related reports and CDRLs.

Fidelity Technology Services LLC is an equal opportunity organization. We recruit, employ, train, compensate, and promote without regard to race, religion, creed, color, national origin, age, gender, sexual orientation, gender identity, marital status, disability, veteran status, or any other basis protected by applicable federal, state or local law.
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Salary.com Estimation for Systems Administrator III in Lemoore, CA
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