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Senior Linux Systems Administrator

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Job ID: 2303641
Location: HUNTSVILLE, AL, United States
Date Posted: Mar 21, 2023
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-time
Shift: Day Job
Travel: No
Minimum Clearance Required: Interim Secret
Clearance Level Must Be Able to Obtain: Secret
Potential for Remote Work: No Remote
Benefits: Click here

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Job Description


SAIC is seeking a Senior Systems Administrator to support the Apache (AH-64D) Post Production Software Support (PPSS) project at Systems Simulation and Software Integration (S3I) in Huntsville, AL.  

Responsibilities Include:

  • Operate as the system admin for the Apache PPSS lab and report to the project manager
  • Work independently with general direction and as a team member
  • Perform operational maintenance, support, and software upgrades for Red Hat Enterprise Linux (RHEL) servers, Windows 10 workstations, and Solaris 10 servers.
  • Manages multiple servers comprising multiple virtual machines (VMs) using Red Hat Enterprise Virtualization (RHEV).
  • Continually monitors and tunes system resources to achieve optimum performance, maximize system uptime, and troubleshoot system problems
  • Performs complex software installations and upgrades to the operating systems, system services, application support packages, and application programs for Windows, and Linux software product deliverables
  • Schedule backups, installations, and upgrades and maintain the system hardware and software in accordance with the customer’s IT and IA policies and procedures
  • Ensure system and application data recoverability by maintaining a schedule of system backups, database archives, and restoration operations
  • Provide quick reaction support to the Common Test Environment (CTE) development team and the gov't customer, to identify, troubleshoot, and resolve system problems
  • Works with the engineering team to ensure system and application data integrity by evaluating, implementing, and managing appropriate software and hardware solutions
  • Works with the engineering team to plan, implement, and test upgrades to the system hardware and software
  • Works with the IA team on security vulnerability and compliance scanning of the system servers and workstations as required under a DoD Authority to Operate (ATO)
  • Works with the IA team to maintain a Risk Management Framework (RMF) posture and participate in the RMF activities required to achieve and maintain an ATO
  • Executes and promotes standard operating procedures and schedules
  • Conducts hardware and software audits of servers and workstations to ensure compliance with established standards, policies, and configuration guidelines
  • Successful candidate will be able to perform day-to-day maintenance, operations and support for enterprise level operating systems, clients and servers.
  • Monitors system analyzing appliances and takes action as necessary to tune system performance and/or mitigate actual and perceived threats to systems.
  • Conducts audits of equipment and production systems and creates appropriate reports.


Required Education:

  • Bachelor's Degree with nine (9) years of relevant experience; four (4) years of experience accepted in lieu of degree. 

Required Clearance:

  • An Interim Secret Clearance must be obtained prior to employment; a Secret Security Clearance must be obtained to maintain employment; US Citizenship required. 

Required Skills:

  • 3+ Years experience with Linux client/server systems administration
  • Experience with Windows 10 workstations
  • Experience with hypervisors, as well as managing and configuring VMs
  • Experience configuring network switches
  • Experience in the interpretation of IA vulnerability/compliance, scan reports, and the implementation of Security Technical Implementation Guides (STIGs) to meet DoD RMF requirements.
  • Experience with the Risk Management Framework (RMF) process and compliance with an Authority to Operate (ATO)
  • Experience in server architectures, storage architectures, virtualization, monitoring tools, backup/restore, performance tuning/capacity planning, documentation, server management
  • Demonstrated excellent interpersonal and oral/written communication skills for effective interaction with customers and co-workers

Desired Skills:

  • Solaris 10 server experience
  • Experience with Red Hat Enterprise Virtualization (RHEV)
  • Experience working in a mixed OS environment (Windows/Linux/Unix) on the same domain.
  • Experience with Red Hat Identity Management (IdM)
  • Experience with Bash and/or Powershell scripting

Covid Policy: SAIC does not require COVID-19 vaccinations or boosters. Customer site vaccination requirements must be followed when work is performed at a customer site.


SAIC® is a premier Fortune 500® technology integrator driving our nation's technology transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, digital, artificial intelligence, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are approximately 26,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer, fostering a culture of diversity, equity, and inclusion, which is core to our values and important to attract and retain exceptional talent. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.4 billion. For more information, visit For ongoing news, please visit our newsroom.

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