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Salary
$91k – $110k per year
Location
In office (Chesterfield)
Seniority
Senior · 5+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 8, 2026.

Overview
Company
Impact
Profile match
Amentum is a US government and critical infrastructure services contractor headquartered in Chantilly, Virginia, providing engineering, technical, mission support and operations services in defense, intelligence, space, energy and environment markets. It has about 50,000 employees in more than 70 countries, is listed on the New York Stock Exchange, and absorbed PAE in 2022 before combining with the Jacobs critical mission solutions business in 2024. Openings include aerospace, GN&C and reliability engineers, aircraft workers, database administrators, software engineers, biometric enrollment specialists and paralegals.

Amentum is seeking a Facilities Maintenance/Operations Manager for our client site in the Greater St. Louis area.

The successful candidate will have outstanding operations and maintenance skills and will be committed to working with others to deliver best in class, unparalleled excellence in customer service and satisfaction.

You will direct a workforce of technicians and reliability professionals engaged in a variety of activities in the management of a pharmaceutical facility and ensure KPI’s are realized while maintaining client relations that will enhance future business. You will act as a back-up to the Facility Program Manager.

As the Facilities Maintenance/Operations Manager, you will manage safety and compliance, operations, personnel, and cost.

You will be responsible for daily support activities, including:

  • Management of site safety programs, including lock out/tag out procedures, hot work procedures, and other applicable safety policies.
  • Maintaining appropriate Job Hazard Analysis for all work and developing JHAs as appropriate for new or altered work.
  • Providing support to building operations and maintenance teams through developing solutions to sustain low operating costs.
  • Performing evaluations and training teams to identify and eliminate waste, reduce operating/ maintenance costs, and reduce system failures.
  • Maintaining 24x7 operations of all critical building support systems (HVAC/Mechanical/Plumbing/Electrical/Lab support/etc.).
  • Oversee maintenance planning, scheduling, work order management, and resource allocation through familiarity with client and Amentum procurement systems.
  • Develop detailed project proposals through comprehensive scope definition, cost estimating, and time-and-materials analysis, while providing end-to-end project management to ensure successful execution, on-time delivery, and customer satisfaction.
  • Manage multiple subcontractors supporting facility operations and maintenance activities, including contractor onboarding, site access coordination, and on-site performance while ensuring full compliance with Amentum and client safety, security, and operational requirements.
  • Diagnosing equipment issues and leading the team to successful repair of equipment.
  • Administering the Reliability Based Maintenance program that includes preventive, corrective, and predictive maintenance activities.
  • Understanding the critical nature of the client’s work environment including the particulars of a research facility.
  • Keeping positive relations and a client partnering mentality.
  • Projecting continuous improvement, setting goals/objectives, meeting the schedule, and Key Performance Indicators (KPI's).
  • Demonstrating consistent, effective and efficient written and oral communication skills (client, employees, suppliers, subcontractors, management, etc).
  • Maintaining consistent communication with management on key issues, potential client issues, and approach to resolutions.
  • Performing all other duties as required.

As the Facilities Maintenance/Operations Manager, you will be expected to:

  • Provide leadership to the operation and ensure an accident-free workplace.
  • Establish performance expectations and conduct performance evaluations.
  • Recruit, train, mentor, and develop maintenance team members.
  • Provide coaching to improve technical competency, safety awareness, and professional development.
  • Maintain standards for data entry in the Computerized Maintenance Management Systems (CMMS).
  • Design, implement, and improve facility and maintenance performance KPIs.
  • Utilize data analytics to identify trends, gaps, and opportunities for operational improvement.
  • Develop dashboards and reporting systems that measure:
    • Work order backlog size and completion rates
    • Schedule adherence
    • Work order status changes
    • PM: Corrective ratio
    • Among others
  • Work in a team environment with a one team mentality; be friendly, respectful, empathetic, and professional to teammates and clients.
  • Value and respect employee authenticity and demonstrate cultural awareness to create a memorable experience and a respectful workplace.
  • Balance workload and multiple tasks while focusing on attention to detail and prioritizing assignments.
  • Take initiative to resolve issues that arise and solve problems independently, shift priorities as needed or requested by management, and remain flexible.

Minimum Requirements:

  • Bachelor’s degree or equivalent trade school credentials.
  • 8+ years of facility operations and maintenance experience including 5 years of facility operations and maintenance supervisory experience in a technical field.
  • Technical knowledge of industrial electrical and mechanical systems with the ability to prioritize, assign, track, and trend equipment history.
  • Demonstrated understanding of developing, managing, and improving KPI's.
  • Staff management experience, including disciplinary action, hiring, terminating, and performance appraisals.
  • Ability to obtain an appropriate driver's license issued by the State Department of Motor Vehicles, as requested.
  • Must be a United States citizen or permanent resident.
  • This position does not include sponsorship for United States work authorization.

Some physical requirements include:

  • Ability to read and understand information contained in a variety of documents or displayed on a computer screen.
  • Ability to use a variety of office equipment and to operate a computer keyboard to access data bases, to send/receive messages and to prepare documents.
  • Ability to travel to other Amentum, customer and/or vendor locations in the area, as well as the possibility of some air travel to more distant locations (Travel not expected, 100% on-site role).
  • Ability to walk extensively throughout diverse work environments as required by business demand.
  • Wear steel toe safety shoes, safety glasses, gloves, hard hats and other Personal Protective Equipment as needed.
  • Work at an accelerated pace in emergency conditions.
  • Cope with demands (stressors) that are associated with the job and/or the work environment so that acceptable levels of performance and overall contribution are maintained.

Client Site Requirement:

  • Ability to obtain a security access badge at our client’s location.
  • Ability to demonstrate understanding of training materials provided in regular computer-based training (CBT’s).
  • Adherence to all site procedures and documentation requirements.

Preferred Qualifications:

  • Experience working in a GMP or similar regulated environment.
  • Experience utilizing a CMMS (computerized maintenance management system) and Microsoft Office programs such as Excel, Outlook, Word, Power Point, and Visio.
  • Predictive maintenance experience, including areas such as IR scanning, ultrasonic, vibration and oil analysis; testing, life cycle studies, incident reports, root cause analysis and/or additional data gathering programs.

Compensation Details:

$91,000 - $110,000

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:

10/08/2026 - 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.

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