Linux System Administrator IRES - SSFB with Security Clearance

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 .