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Systems Administrator

Job in Saint Charles, St. Charles County, Missouri, 63301, USA
Listing for: Amentum
Full Time position
Listed on 2026-02-11
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

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 onsite technical support for other teams and end users.

ESSENTIAL DUTIES/RESPONSIBILITIES
  • 1. Perform daily On Site Datacenter Support
  • 2. Provide Datacenter Hardware Support and Maintenance as required
  • 3. Maintain Datacenter Rack Drawing and documentation as required
  • 4. Perform Monthly Server Patching (Windows Server Update Service)
  • 5. Remediate Server vulnerabilities based on scan results within the required 30 day timeframe
  • 6. Complete daily, weekly, monthly, and yearly Operational Tasks on or ahead of schedule.
  • 7. Provide onsite technical assistance and support to other lines of service
  • 8. Provide onsite technical assistance and support to end-users.
  • 9. Managing routine morning checks of systems and environment and provide any subsequent remediation.
  • 10. Perform Annual reviews of IT infrastructure systems to verify integrity and compliance.
  • 11. Participate in IT projects and initiatives.
  • 12. Maintain accurate documentation of system configurations, procedures, and troubleshooting guides. Along with recording and tracking changes made to the IT infrastructure environment.
  • 13. Manage virtual environment using VMWare’s vSphere and ESXI.
  • Other duties as assigned.
EDUCATION, LICENSE, CERTIFICATION, and EXPERIENCE

Education :
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.

  • No clearance requirement but the contract and/or the site requires US Citizenship to be approved for access. (includes NACI / T1, MRPT, CAC): Must be able to obtain and maintain facility credentials/authorization.

    Note:

    US Citizenship is required for facility credentials/authorization at this work location.
REQUIRED SCREENINGS
  • Drug Screen
  • Physical Assessment (if applicable)
  • Background Check (Criminal, Civil, Educational, Previous Employment, etc.)
  • Driver Record Screen (for positions requiring on-the-job-driving)
REQUIRED SKILLS/ABILITIES
  • 1.Familiarity with WSUS administration
  • 2. Proficient in Data center monitoring and maintenance
  • 3. Proficient in Server administration
  • 4. Proficient in Help desk tier 2 support
  • 5. Proficient in UPS Device Management and Monitoring
  • 6. Proficient in vSphere administration (skill)
  • 7. Proficient in Print server administration (skill)
  • 8. Familiarity with Commvault administration (desired)
  • 9. Familiarity with Red Hat Linux administration (desired)
  • 10. Proficient in communications skills, organizational skills and independent and autonomous working
  • 11. Ability to lift 50 lbs
  • 12. Ability to work under pressure to meet deadlines while handling multiple priorities
  • 13. Ability to provide up to date and accurate reporting to management and customers
  • 14 Ability to adapt to new technologies, skillsets and to learn quickly
  • 15. Ability to motivate, influence and drive co-workers.
  • 16. Proficient in creating and updating documentation for common issues and processes to contribute to the team's knowledge base

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 Physical Activities

Medium work–frequent squatting, bending, stooping, and kneeling. Occasional work on uneven surfaces. Lifting or exerting up to 50 lbs. of force occasionally, and/or up to 20 lbs. of force frequently, and/or up to 10 lbs. of force constantly

SUPERVISORY RESPONSIBILITIES

This position does not require any supervisor responsibilities.

GENERAL INFORMATION

Core

Hours:

7am – 7pm

Location:

Weldon Spring

Travel:
Less than 5%

EMPLOYMENT-AT-WILL

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

COMPENSATION &…
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