Central Utility Plant Operator

Amentum; Chesterfield (MO); On-site; USD 41,000 - 45,000; Full time

Benefits offered by this job

Health insurance

Paid time off

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Disability and life insurance

Pet insurance

Job summary

Amentum seeks a Central Utility Plant Operator for its Greater St. Louis area site. The role focuses on safe operation and maintenance of CUP equipment within a large pharmaceutical facility, with a night shift of 12 hours and 3–4 days per week.

The CUP Operator will monitor BAS, perform maintenance, manage logs, and coordinate with subcontractors, reading drawings, and supporting building systems using CMMS and Metasys.

Qualifications

• High school diploma or equivalent.
• Five years of experience as an industrial HVAC or industrial mechanical maintenance technician, or equivalent combination of education and experience.
• City of St. Louis Stationary Engineer license, Class I.
• Ability to obtain a security access badge at our client’s location.
• Willing to work overtime, holidays, shifts, weekends, and alternate schedules.
• Citizen or Permanent resident of the United States; no sponsorship.

Responsibilities

• Operate and maintain Central Utility Plant equipment for a large pharmaceutical facility.
• Monitor building automation systems for safe, efficient operation and adjust as needed.
• Record daily equipment logs and submit reports.
• Identify problems and create work orders; coordinate subcontractor activities.
• Perform water treatment chemical analysis and preventative maintenance tasks.
• Read drawings/prints and assist with building support services and repairs.
• Work with CMMS and Johnson Controls BAS; read technical manuals.
• Other duties as assigned by Management or Lead.

Skills

HVAC experience

Attention to detail

Read drawings/prints

Teamwork

Education

High school diploma or equivalent

City of St. Louis Stationary Engineer license, Class I

Tools

CMMS (SAP)

Maximo

EAMS

Johnson Controls Metasys BAS

Job description

We are seeking a Central Utility Plant (CUP) Operator for our client site in the Greater St. Louis area.

The successful candidate will have the necessary skills to operate safely, and will be committed to working with others to deliver best in class, unparalleled excellence in customer service and satisfaction.

Typical work schedule for this role will be 12HR night shift 3-4 days per week

While in the charge of the shift, the CUP Operator is responsible for:

• Operating and maintaining the Central Utility Plant equipment and its systems for a large pharmaceutical facility.
• Monitoring building automation systems to ensure proper, safe, and efficient operation of equipment, with the ability to adjust as necessary.

Identifying and correcting problems with the CUP equipment such as boilers, chillers, pumps, air compressors, highly purified water systems, clean steam, wastewater systems, and cooling towers.

• Taking daily equipment logs, submitting reports as required to the chief engineer, and meeting local and state regulatory requirements.
• Identifying problems and creating work orders for all equipment.
• Coordination and oversight of subcontractor activities.

As a CUP Operator, you will be responsible for daily support activities, including:

• Performing water treatment chemical analysis
• Performing Preventative Maintenance tasks, and making building and CUP rounds.
• Leading and/or assisting technicians where necessary in building support services and equipment repairs with the ability to read drawings, prints, and technical manuals with understanding.
• Working in electronic CMMS and Johnson Controls BAS.
• Performing other duties as assigned by Management or Lead.

As a CUP Operator, you will be expected to:

• 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

• High school diploma or demonstrated equivalent.
• Five years of experience as an industrial HVAC or industrial mechanical maintenance technician, or equivalent combination of education and experience.
• City of St. Louis Stationary Engineer license, Class I.
• Demonstrated ability to work independently while maintaining attention to detail, good comprehensive and analytical skills, and the ability to multi-task.
• Ability to obtain a security access badge at our client’s location.
• Must be willing to work overtime, holidays, various shifts, weekends, and alternative work schedules.
• Must be a United States citizen or Permanent resident.
• This position does not include sponsorship for United States work authorization.

Some physical/special requirements include:

• Regularly lift to 50 lbs
• Regularly climb ladders, steps, and scaffolding
• Repetitive motions: bend, stoop, squat, kneel, stretch, reach, wrist movement.
• Walk extensively throughout the plant during shift
• Work at an accelerated pace in emergency conditions
• Ability to differentiate colors pertaining to wire color‑coding

Special Requirements:

• Wear steel toe safety shoes, safety glasses, gloves, hard hats, and other Personal Protective Equipment as needed.
• Cope with demands (stressors) that are associated with the job and/or the work environment.

Preferred Qualifications

• Proficient with MS Office products (Outlook, Word, Excel).
• Experience working with HPSI steam boilers and associated equipment.
• Training or experience in Johnson Controls Metasys building automation systems (BAS).
• Experience working in a CMMS environment. (SAP, Maximo, EAMS, etc.)
• Experience leading or supervising a multi-skilled technical workforce.
• Experience working with complex electrical and mechanical building equipment.

Compensation Details:

30-33

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:

10/29/2026 - 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 (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .