HPC Linux System Administrator

Posted 2 Hours Ago
Be an Early Applicant
Houston, TX, USA
In-Office
Senior level
Security • Cybersecurity
The Role
Support and administer the FSL HPC environment at JSC: manage Linux servers, HPC clusters, high-speed networking and parallel filesystems, implement container-based HPC workflows and CI/CD, administer job schedulers, monitor system health, troubleshoot, and support over 1000 users to enable NASA human spaceflight missions.
Summary Generated by Built In

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!     

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States. 

We have an exciting opportunity for a HPC Linux System Administrator to join the team with MRI, a teammate company.

Requisition Description:

Are you excited about supporting NASA human spaceflight?  If so, this could be the position for you.  We have the need for an experienced HPC System Administrator at Johnson Space Center (JSC).  This position, working on the Amentum JETS contract, will support the Flight Sciences Laboratory (FSL).

The FSL is one of JSC's primary compute labs and hosts a wide variety of analyses, which support all human-spaceflight programs at NASA including the International Space Station (ISS), Orion, Space Launch System (SLS), Commercial Crew Program, Human Landing System (HLS), Moon Base and many others.  The FSL systems are currently comprised of over 700 machines, 26,000 cores and over 10 PB of storage, which serve more than 1000 users.

In this position you will be working with a team of HPC System Administrators to build and maintain all FSL services. This will include High Performance Compute (HPC) administration, high-end Linux workstation administration, high-speed networking, High-speed parallel filesystem administration, and more.

Some of the skillset we are looking for this position is a deep understanding of container technologies and how best they can be used in a High Performance Compute (HPC) environment.  

The FSL System Administration Team is critical in supporting the FSL users in effectively utilizing the systems. The team's day to day tasks include investigating system problems, proactively monitoring system health, and working with FSL users to make sure they can support the NASA human spaceflight mission.  

Requisition Qualifications:

This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

  • Typically requires a bachelor’s degree or equivalent certification in a related area and a minimum of 5 years of experience in the field or in a related area.

  • Experience in the following areas is needed for this position:

    • Linux system administration
    • System configuration management
    • Container Based HPC Workflows

    • Complex CI/CD Workflows
    • HPC job scheduler administration
  • Demonstrated problem solving, planning, and communication skills
  • Ability to work in a team environment
  • Experience with large-scale system administration, with 2 of those years in HPC administration.  

Requisition Preferences: 

  • ​Familiarity with the following is preferred but not required for the position:

    • RedHat-based systems
    • Container Technology like Docker, Podman, and Apptainer
    • Luster High-speed Parallel Filesystems
    • InfiniBand
    • Ansible / Foreman
    • SLURM resource manager
    • SPACK software manager
    • Log consolidation and monitoring
    • Git/Gitlab and software development (CI/CD)
    • Johnson Space Center campus network
    • NASA security mechanisms (security plans, POAMs, ATOs, Risk Assessments

Why Join Our Team?

In addition to exciting career opportunities, we also have:

  • Excellent personal and professional career growth
  • 9/80 work schedule (every other Friday off), when applicable
  • Onsite cafeteria (breakfast & lunch)
  • Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com

  • Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.
  • Must be able to complete a U.S. government background investigation.
  • Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

       

Compensation Details:

IT2-IT4

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.


Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock purchase plan

  • Tax-saving options

  • Disability and life insurance

  • Pet insurance


Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

07/08/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

Skills Required

  • Bachelor's degree or equivalent certification and minimum of 5 years of related experience
  • Linux system administration
  • System configuration management
  • Container-based HPC workflows
  • Complex CI/CD workflows
  • HPC job scheduler administration
  • Experience with large-scale system administration, with at least 2 years in HPC administration
  • Demonstrated problem solving, planning, and communication skills
  • Ability to work in a team environment
  • Must be able to complete a U.S. government background investigation
  • Proof of U.S. Citizenship or U.S. Permanent Residency may be required
  • RedHat-based systems
  • Container technologies such as Docker, Podman, Apptainer
  • Lustre high-speed parallel filesystems
  • InfiniBand
  • Ansible and Foreman
  • SLURM resource manager
  • SPACK software manager
  • Log consolidation and monitoring tools
  • Git/GitLab and software development (CI/CD)
  • Familiarity with Johnson Space Center campus network and NASA security mechanisms (security plans, POAMs, ATOs, Risk Assessments)

Amentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.

  • Healthcare Strength Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
  • Retirement Support Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
  • Leave & Time Off Breadth Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.

Amentum Insights

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The Company
HQ: Chantilly, VA
18,261 Employees

What We Do

Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.

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