Linux System Administrator IRES - SSFB

Posted 2 Days Ago
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Colorado Springs, CO, USA
In-Office
120K-145K Annually
Expert/Leader
Security • Cybersecurity
The Role
Supports enterprise Linux infrastructure for the Missile Defense Agency, including physical and virtual environments, VMware Tanzu, containers, automation, monitoring, backups, disaster recovery, deployments, cybersecurity mitigations, and SOPs. Collaborates with engineering teams to maintain high availability and mission readiness, troubleshoot complex systems, lead technical initiatives, and mentor junior staff. Requires extensive Linux administration experience, Ansible expertise, Red Hat technologies, active Secret clearance, and eligibility for Top Secret/SCI clearance.
Summary Generated by Built In

Position Title: Linux System Administrator

 

Location: Schriever Space Force Base, Colorado Springs, CO

 

Relocation Assistance: None available at this time

 

Remote/Telework: NO - Not available for this position

 

Clearance Type: DoW Secret

 

Shift: Day shift


Travel Required: Up to 10% of the time


 

Description of Duties:

The Linux System Administrator supports the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract. The candidate will:


·       Serve as a technical focal point for the architecture, sustainability, and advanced troubleshooting of physical and virtual Linux-based environments.

·       Bridge the gap between traditional infrastructure maintenance and modern containerization by administering VMware Tanzu and container repositories.

·       Collaborate closely with network, system, and cybersecurity engineers to provide engineering support and ensure the infrastructure is optimized for high availability.

·       Leverage automation and modern system administration methodologies, you will streamline system monitoring, manage complex backups and disaster recovery, and execute software deployments.

·       Have responsibilities that include implementing critical cyber security mitigations, managing standard operating procedures (SOPs), and ensuring all Linux infrastructure aligns with established service level agreements (SLAs) and mission readiness requirements.



The successful candidate will:

·       Be able to mentor junior staff and lead cross-functional technical projects.

·       Be able to decompose difficult infrastructure problems and engineer scalable resolutions.

·       Be ambitious, inquisitive, and capable of quickly mastering challenging new technologies.

·       Be proactive, inquisitive, self-motivated with a strong commitment to continuous improvement.

·       Be able to maintain workplace professionalism.


 

Resumes, in month and year format, must be submitted with application in order to be considered for the position.  The selected candidate may be assigned as an employee for one of our teammate companies.


 

Basic Requirements:

·       Must have 12, or more, years of general (full-time) work experience

o   May be reduced with completion of advanced education

·       Must have 4, or more, years of directly related experience in enterprise Linux operating systems and server management.

·       Must have 6, or more, months of experience working in a management or leadership role

·       Must have proven experience with scripting and automation tools (e.g., Bash, Python, Ansible).

·       Must have the demonstrated ability to manage medium-scale technical initiatives and troubleshoot complex systems.

·       Must have experience deploying and configuring Ansible Automation Platform

·       Must have experience with Linux Content Management.

·       Must have experience with fapolicy and selinux.

·       Must have an active DoD 8570.01-M IAT Level II certification (e.g., CompTIA Security+ CE or higher).

·       Must have experience with Red Hat Enterprise Linux 9.

·       Must have experience with Red Hat Satellite and Capsule.

·       Must have experience with Red Hat Identity Manager.

·       Must have an active DoW Secret Security Clearance

·       Must be able to obtain (and maintain) an active DoW Top Secret Security Clearance with SCI eligibility


 

Desired Requirements:

·       Have a Bachelor’s degree in Information Technology or related field.

·       Have 1, or more, years of MDSEA experience

·       Have a valid Red Hat Certified System Administrator Certification.

·       Have an active DoW Top Secret Security Clearance.

·       Strong background in process automation and modern system design.

·       Expertise in refining standard processes and documenting architectural changes.



This position will be posted for a minimum of 3 days. If a candidate has not been selected at that time, it will continue to be posted until a suitable candidate is selected or the position is closed.

       

Compensation Details:

$120,000 – $145,000

       

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:

10/20/2026 - 10/28/2026

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

  • 12 or more years of general full-time work experience, potentially reduced with advanced education
  • 4 or more years of directly related experience with enterprise Linux operating systems and server management
  • At least 6 months of experience in a management or leadership role
  • Proven experience with scripting and automation tools such as Bash, Python, and Ansible
  • Ability to manage medium-scale technical initiatives and troubleshoot complex systems
  • Experience deploying and configuring Ansible Automation Platform
  • Experience with Linux Content Management
  • Experience with fapolicy and SELinux
  • Active DoD 8570.01-M IAT Level II certification, such as CompTIA Security+ CE or higher
  • Experience with Red Hat Enterprise Linux 9
  • Experience with Red Hat Satellite and Capsule
  • Experience with Red Hat Identity Manager
  • Active DoW Secret security clearance
  • Ability to obtain and maintain an active DoW Top Secret security clearance with SCI eligibility
  • Bachelor's degree in Information Technology or a related field
  • At least 1 year of MDSEA experience
  • Valid Red Hat Certified System Administrator certification
  • Active DoW Top Secret security clearance
  • Strong background in process automation and modern system design
  • Expertise refining standard processes and documenting architectural changes

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.

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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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