Job Requirements
Stennis Space Center, MS
Top Secret/SCI Polygraph not specified
Mid Level Career (5+ yrs experience)
$100,000 - $145,000
Job Description
****This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI)****
***Because an active DoD clearance is required, U.S. Citizenship is required***
HPC Systems Administrator (TS/SCI Cleared)
Location: Onsite
Duration: 12-Month Contract
Clearance Required: Active TS/SCI
Work Environment: Secure classified facility (SCIF)
About the Role
We are seeking an experienced HPC Systems Administrator to support and maintain a large-scale High Performance Computing (HPC) environment within a secure government setting. This position is ideal for a Linux systems administrator with deep HPC experience who enjoys managing complex environments, maintaining security compliance, supporting mission-critical operations, and mentoring less experienced administrators.
This is a hands-on role focused on system administration, cluster operations, security maintenance, upgrades, and knowledge transfer. Hardware break/fix support is handled by a separate team, allowing you to focus on administration and optimization of the HPC environment.
What You'll Do
• Administer and support a large HPC cluster in a production environment.
• Monitor system health, performance, and availability.
• Plan, coordinate, and execute operating system and infrastructure upgrades.
• Maintain security compliance and implement required security controls.
• Respond to user requests and troubleshoot system-related issues.
• Manage production systems and support security hardening efforts.
• Utilize HPC management tools to administer and monitor the environment.
• Collaborate with engineering and operations teams to ensure platform stability.
• Provide technical guidance and knowledge transfer to customer system administrators.
• Mentor and train administrators on troubleshooting methodologies and operational processes.
• Work independently while leveraging support from a broader technical team.
Required Qualifications
• Active TS/SCI Security Clearance
• CompTIA Security+ Certification
• CompTIA Linux+ Certification
• 10+ years of experience supporting HPC environments
• Strong Linux Systems Administration experience
• Experience supporting Red Hat Enterprise Linux (RHEL) environments
• Ability to troubleshoot complex HPC issues independently
• Experience planning and implementing system upgrades
• Experience maintaining secure, compliant computing environments
• Strong communication skills with the ability to train and mentor others
Education & Experience
• Master's degree in Computer Science or related field plus 5+ years of professional experience
OR
• 7+ years of relevant professional experience in lieu of a master's degree
Preferred Qualifications
• Data center operations experience
• Experience supporting highly secure or classified environments
• Strong troubleshooting and root-cause analysis skills
• Familiarity with enterprise hardware platforms and infrastructure environments
• Experience working alongside multi-disciplinary operations teams
Work Environment
• 100% onsite position
• Secure compartmented environment (SCIF)
• Collaborative team environment with experienced administrators available for support
• Opportunity to transfer knowledge and influence long-term operational success
Why This Role?
This opportunity allows you to serve as a key administrator for a mission-critical HPC environment while helping develop the next generation of system administrators. You'll have ownership over system operations, upgrades, security compliance, and platform stability while working alongside an experienced technical team.
Qualified candidates with an active TS/SCI clearance and strong HPC/Linux administration experience are encouraged to apply.
**Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
This job posting will end: 10/23/26
***Because an active DoD clearance is required, U.S. Citizenship is required***
HPC Systems Administrator (TS/SCI Cleared)
Location: Onsite
Duration: 12-Month Contract
Clearance Required: Active TS/SCI
Work Environment: Secure classified facility (SCIF)
About the Role
We are seeking an experienced HPC Systems Administrator to support and maintain a large-scale High Performance Computing (HPC) environment within a secure government setting. This position is ideal for a Linux systems administrator with deep HPC experience who enjoys managing complex environments, maintaining security compliance, supporting mission-critical operations, and mentoring less experienced administrators.
This is a hands-on role focused on system administration, cluster operations, security maintenance, upgrades, and knowledge transfer. Hardware break/fix support is handled by a separate team, allowing you to focus on administration and optimization of the HPC environment.
What You'll Do
• Administer and support a large HPC cluster in a production environment.
• Monitor system health, performance, and availability.
• Plan, coordinate, and execute operating system and infrastructure upgrades.
• Maintain security compliance and implement required security controls.
• Respond to user requests and troubleshoot system-related issues.
• Manage production systems and support security hardening efforts.
• Utilize HPC management tools to administer and monitor the environment.
• Collaborate with engineering and operations teams to ensure platform stability.
• Provide technical guidance and knowledge transfer to customer system administrators.
• Mentor and train administrators on troubleshooting methodologies and operational processes.
• Work independently while leveraging support from a broader technical team.
Required Qualifications
• Active TS/SCI Security Clearance
• CompTIA Security+ Certification
• CompTIA Linux+ Certification
• 10+ years of experience supporting HPC environments
• Strong Linux Systems Administration experience
• Experience supporting Red Hat Enterprise Linux (RHEL) environments
• Ability to troubleshoot complex HPC issues independently
• Experience planning and implementing system upgrades
• Experience maintaining secure, compliant computing environments
• Strong communication skills with the ability to train and mentor others
Education & Experience
• Master's degree in Computer Science or related field plus 5+ years of professional experience
OR
• 7+ years of relevant professional experience in lieu of a master's degree
Preferred Qualifications
• Data center operations experience
• Experience supporting highly secure or classified environments
• Strong troubleshooting and root-cause analysis skills
• Familiarity with enterprise hardware platforms and infrastructure environments
• Experience working alongside multi-disciplinary operations teams
Work Environment
• 100% onsite position
• Secure compartmented environment (SCIF)
• Collaborative team environment with experienced administrators available for support
• Opportunity to transfer knowledge and influence long-term operational success
Why This Role?
This opportunity allows you to serve as a key administrator for a mission-critical HPC environment while helping develop the next generation of system administrators. You'll have ownership over system operations, upgrades, security compliance, and platform stability while working alongside an experienced technical team.
Qualified candidates with an active TS/SCI clearance and strong HPC/Linux administration experience are encouraged to apply.
**Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
This job posting will end: 10/23/26
group id: 10105424
