Mission Assurance System Administrator - NISSC 3 - DC with Security Clearance

Position Title: Mission Assurance System Administrator Location: Pentagon, Washington DC Relocation Assistance: None available at this time Remote/Telework: NO - Not available for this position Clearance Type: Top Secret with SCI Eligibility Shift: Shift work may be required Travel Required: Up to 10% of the time The NORAD Operations Division, as the prime contractor on the North American Aerospace Defense Command (NORAD) Cheyenne Mountain Complex (NCMC) Integrated Tactical Warning/Attack Assessment (ITW/AA) and Space Support Contract 3 (NISSC 3), provides:

• Operations, maintenance, and Sustainment of ITW/AA threat warning and control systems.
• Software development and integration.
• Supports the classified communications and processing for Command and Control (C2) capability and legacy space C2 systems located at:
• Cheyenne Mountain Space Force Station (CMSFS), Colorado
• Peterson Space Force Base (PSFB), Colorado
• Offutt Air Force Base, Nebraska
• Vandenberg Space Force Base, California
• Numerous sensor and forward operator sites around the world Description of Duties: The Mission Assurance System Administrator supports North American Aerospace Defense Command (NORAD) Cheyenne Mountain Complex (NCMC) Integrated Tactical Warning/Attack Assessment (ITW/AA) and Space Support Contract 3(NISSC 3). The candidate will:
• Analyze, troubleshoot, and resolve system hardware, software, peripheral, and networking problems in stressful situations
• Explain technical concepts to inexperienced users
• Optimize, fine-tune, and monitor operating system software and hardware
• Install and configure software and hardware
• Identifies and corrects processing anomalies
• Create Incident Reports on system issues and perform system data collection
• Perform and provide server, workstation, and application expertise to government, civilian and contractor users
• Provide support to other work centers and test community
• Escort and provide support to engineers and maintenance personnel
• Coordinate higher level support with Mission Assurance Centers It is important to be available to work any shift/designated hours required including nights, weekends, and holidays.

Personnel may be required to remain on-site for extended periods during emergencies and drills. This position is expected to pay $150,000-$160,000 annually; depending on experience, education, and any certifications that are directly related to the position. This position will be filled and work onsite at Pentagon, Washington DC 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 one of our teammate companies.

Basic Requirements

• Active TS with SCI eligibility
• Current DoD IAT Level II or higher (Sec+)
• 10 years or more of general work experience
• 8 years or more of directly related experience
• At least 2-4 years Mission Assurance Center experience
• Working knowledge and system administration experience with Red Hat Enterprise Linux environments; Microsoft Windows operating systems (OS) administration and associated hardware; VMWare and system visualization; and Local Area Network (LAN) and Wide Area Network (WAN) technologies
• Knowledge of Active Directory and domains
• Understanding of virtual machine and Remote Desktop
• Windows System Administration experience Desired Requirements:
• Have experience using command line interface such as Windows, Linux, or Cisco
• AS degree in a computer field
• VCP/VCAP
• Cyber experience
• Basic understanding of network topologies and protocols
• Trouble ticket experience 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. The position for which you are applying requires a US Department of Defense security clearance. This is to advise you that if you possess dual citizenship (i.e., a citizen of the US and another country), to be granted a clearance, you will be required to relinquish your citizenship in the foreign country.

Compensation Details

$150,000-$160,000 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

11/03/2026 - 11/06/2026
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 .