Industrial Maintenance Mechanic III HVAC - Night Shift

Amentum is seeking an Industrial Maintenance Mechanic III- HVAC to join our operations & maintenance team in Ocotillo, AZ.

Night Shift:

Typical work hours are Nights 3:00 p.m.- 2 a.m. hours may vary based on business demand. Alternating work week.

Hiring hourly range: $25.00 - $29.00 (hourly rate to be determined by the education, experience, knowledge, skills, and abilities of the applicant internal equity, and alignment with market data).

Amentum is seeking an Industrial Maintenance Mechanic III - HVAC to join our Operations & Maintenance Team.

This position is responsible for providing an intermediate level of expertise in responding to work orders, troubleshooting, and providing repairs to fixtures and systems in a manufacturing environment.

Working under minimal supervision as a member of a self-directed work team, this is a multi-craft position that may perform machine repairs and general non-licensed maintenance work, as well as support other licensed trades as directed. Requires good working knowledge of all types and applications of equipment pertaining to maintenance and operations for assigned area, and the ability to work within machine tolerances. General maintenance, including minor duties in carpentry, painting, and sheet metal, may also be required.

The Industrial Maintenance Mechanic III - HVAC must have the ability to identify and correct any safety-related issues and perform independent equipment evaluations to identify potential equipment failures. General Maintenance of equipment will also be required.

Responsibilities:

• Performs planned maintenance on all building equipment and related services for specific area while being sensitive and responsive to customer needs.
• Performs trouble-shooting techniques on HVAC equipment and systems.
• Performs preventative maintenance inspections.
• Provides support to co-workers, contractors, vendors, project managers, building managers, and engineers as necessary to support project and renovation work.
• Complies with all governmental, company, and industrial regulations, codes, and standards, health safety practices, and permit systems.
• Performs preventive maintenance as scheduled in the Computerized Maintenance Management System (CMMS).
• Responds and provides service and feedback to the customer on all work orders while assuring compliance to codes, regulations and industry standards.
• Recommends measures to improve maintenance methods and equipment performance.
• Safely performs functions of the position including following proper safety guidelines such as job hazard analysis and lockout/tagout procedures and wearing PPE as required.
• Operates various measuring, diagnostic and testing instruments to help provide energy efficiency solutions.
• Operates a variety of equipment such as hand tools, laptop computers and diagnostic hardware to perform work.
• Maintains a strict schedule in order to be successful in the assignment, yet demonstrates flexibility in the day-to-day activities and scheduling for the benefit of the customer.
• Other duties as assigned by Manager or Supervisor.

Minimum Requirements:

• High school diploma or demonstrated equivalent.
• Three years of maintenance experience in one of the following trades or demonstrated equivalent combination of education and experience: Industrial HVAC/ Industrial Mechanical Machine Repair/ Industrial Mechanical Machine Repair, or facility maintenance Automotive Repair.
• Ability to work in an aerial lift or scissor lift at heights up to 30 feet or higher.
• Must be willing to work overtime when required.
• May be required to work holidays and weekends.
• EPA Section 608 Universal Certification

Physical Requirements:

• Some tasks will require repetitive wrist movement.
• Some tasks will require the ability to walk extensively throughout facilities during a workday.
• Requires the ability to climb extension ladders, roof ladder, stepladders, and stairs as needed during a workday.
• Requires the flexibility to bend/stoop, squat, kneel, reach/stretch, and move in a 90-degree fashion during workday.
• Requires the ability to differentiate colors pertaining to wire color-coding.
• Requires ability to read and understand information contained in a variety of documents or displayed on a computer screen.
• Requires 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.
• Requires ability to attend meetings throughout the site and potentially travel to other Amentum, customer and/or vendor locations in the area, as well as some air travel to more distant locations.
• Requires the ability to communicate with others on the telephone and in one-on-one or group discussions, meetings and presentations.
• Demonstrated fluency in computer use including the full Microsoft product line.
• Requires some moving of light to medium weight materials into desks, filing cabinets and other storage locations.
• Requires the ability to interact with all clients in a professional and friendly manner despite periods of stress.

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 so that acceptable levels of performance and overall contribution are maintained.

Other Attributes:

• Must be willing to work overtime when required. May be required to work holidays and weekends. Work schedules can change based on critical business needs.

Additional Information:

• Qualified applicants who are offered a position must pass a pre-employment substance abuse test.
• This position may require a valid Driver's License.
• This position does not include sponsorship for United States work authorization.
• This position will require the ability to obtain a security access badge at our client's location.

Compensation Details:
$30.00

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:
06/26/2026 - 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.