System Administrator

About the role

Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our people are our competitive advantage, driven by purpose, collaboration, and a commitment to delivering excellence for our customers and communities. We are currently seeking a Systems Administrator to support our Legacy Management Contract in Grand Junction, CO, Morgantown, WV or Westminster, CO.

OBJECTIVE:

Responsible for ensuring the smooth operation, security, and reliability of our organization’s IT operating system environment and infrastructure. This includes managing servers, hardware, and software, as well as providing technical support for IT and users.

ESSENTIAL DUTIES/RESPONSIBILITIES:

1.Install, configure, and maintain Linux, mainly Red Hat Enterprise Linux, servers (both physical and virtual) to ensure uptime and performance.

2.Install, configure, and maintain Microsoft Windows servers (both physical and virtual) to ensure uptime and performance

3.Perform routine system updates, patches, and backups

4.Run tenable reports and remediate Server vulnerabilities based on results.

5.Support virtual environment using VMWare’s vSphere and ESXI.

6.Perform Annual reviews of IT infrastructure systems to verify integrity and compliance.

7.Collaborate with other IT professionals and departments to ensure seamless IT operations.

8.Data center monitoring and maintenance.

9.Support Quantum tape library and Nexsan maintenance.

10.Maintain accurate documentation of system configurations, procedures, and troubleshooting guides. Along with recording and tracking changes made to the IT infrastructure environment.

12.Diagnose and resolve hardware and software issues.

13.Stay updated with emerging hardware, software, and technologies.

14.Provide technical assistance and support end-users.

15.Other duties as assigned.

EDUCATION, LICENSE, CERTIFICATION, and EXPERIENCE

Bachelor’s degree in computer science, engineering, or other scientific or management field. Experience in lieu of education considered.

Experience

Minimum of 7 years’ experience.

Licenses

No licensure required.

Certifications

No professional certifications required.

Must be able to obtain and maintain facility credentials/authorization. Note: U.S. Citizenship is required for facility credentials/authorization at this work location.

REQUIRED SCREENINGS

1.Drug Screen

2.Physical Assessment (if applicable)

3.Background Check (Criminal, Civil, Educational, Previous Employment, etc.)

4.Driver Record Screen (for positions requiring on-the-job-driving)

REQUIRED SKILLS/ABILITIES:

1.Ability to manage Red Hat Enterprise Linux Servers.

2.Understanding of Firewalls and ability to manage OS Firewalls.

3.Proficient in server management, including the installation and updating of Windows OS while ensuring data integrity and security through patch management and troubleshooting expertise.

4.Utilizing monitoring tools to track system performance and troubleshoot hardware and software issues and optimize system resources.

5.Have a strong understanding of the operating systems, hardware, and software for effective management

6.Ability to implement backup and recovery solutions to ensure data integrity.

7.Strong problem-solving skills to diagnose and resolve hardware, software, and network issues efficiently.

8.Ability to write scripts to automate repetitive tasks can enhance operation efficiency.

9.Ability to administer systems remotely, especially in the context of remote work.

10.Expertise in applying security patches and updates to keep servers secure and up-to-date.

11.Excellent troubleshooting/problem solving skills.

12.Excellent communications skills.

13.Excellent organizational skills.

Legacy Management Support (LMS) Organizational Core Values: One Team, One Mission Successfully execute the LM mission safely through a disciplined culture of organizational excellence.

1.Safety – The foundation of everything we do.

2.Teamwork – Leading with trust, open communication, and collaboration.

3.Quality – Striving to exceed expectations.

4.Ownership – Each of us has the responsibility to contribute and be accountable.

ESSENTIAL PHYSICAL REQUIREMENTS:

Aligned with Fit-For-Duty evaluation requirements.

Physical Activities:

Medium work: Work involves moving objects by exerting 20 to 50 pounds of force occasionally, or 10 to 25 pounds of force frequently, or an above-negligible amount and up to 10 pounds constantly. Physical demand requirements are in excess of those for light work.

SUPERVISORY RESPONSIBILITIES:

This position does not require any supervisor responsibilities.

EMPLOYMENT-AT-WILL:

Employment is at will, unless prohibited by local and/or state laws.

Compensation Details:

$116,159 - $147,072

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:

11/09/2026 - 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.