Supervisor - Facility Maintenance

Amentum is seeking an experienced Maintenance Supervisor for our team of multi-skilled technicians in Mossville, IL! • Typical work schedule is 40 hours, 1st shift M-F, 6:00am – 2:30pm; hours may vary based on business demand. • Weekend hours may be scheduled to support our 24/7 operation. Reporting to the Facility Maintenance Manager, the Supervisor is responsible for technical support, direction, safety training, audits and quality control for Amentum facility and production maintenance employees in a fast-paced industrial manufacturing environment as well as large office spaces.

The Supervisor completes maintenance operations to the satisfaction of the client, consistent with cost, schedule, and contractual requirements. Plans, coordinates, and supervises routine maintenance activities, special projects, and distributes workload to achieve productivity and quality objectives. Interfaces with the client to ensure customer satisfaction. In addition, this position is responsible for all basic management responsibilities including, but not limited to staffing and development, evaluation and recognition, leadership, and employee relations.

Coordinates and monitors the purchase and maintenance of equipment and supplies. Ensures the safety and well-being of its employees, safeguarding company funds and property, and generally represents Amentum in the field with respect to the client. Responsibilities: Safety & Compliance Provides leadership ensuring an accident-free workplace. Ensures safety of employees and tenants of the facilities. Is knowledgeable of site safe work requirements and ensures work is performed in accordance with safety procedures.

Manages Site Compliance Calendar to ensure 100% compliance across areas of responsibility. Work with EHS team. Conduct 5 Whys (RCA) when needed. People & Communication Creates inclusive, high-performance work environment. Maintains consistent communication with management on key issues, potential client issues, and determined approach to resolutions. Establish and maintain effective two-way communications. Understand the needs and concerns of employees. Convey employee attitudes and expectations to higher management. Properly manage employee personal information.

Maintains consistent communication with higher management on variety of personnel actions (e.g., employment, performance, disciplinary issues, scheduling and/or approving overtime). Identify and maintain accountability for company assets within assigned area and ensure employees understand their obligation to protect company assets. Demonstrates leadership by example and display integrity and candor in all actions. Maintains sense of urgency regarding customer response and addressing issues. Will perform/assist in annual employee assessments and performance reviews.

Operational Excellence Responsible for overseeing the day-to-day operational teams supporting Facilities and Production Maintenance. Responsible for training and development of subordinate staff, estimating personnel needs, assigning work, and meeting completion dates. Interprets and ensures consistent application of organizational polices. Reviews work as required to document specific needs (materials, supplies, instructions, etc.). Works with or oversees subcontractor activities as directed by manager or work schedule. Ensures accurate employee time accounting in Maximo and Deltek systems.

Perform all other position-related duties as assigned or requested. High School graduate or demonstrated equivalent. This position does not include sponsorship for United States work authorization. Ten years of progressively responsible industrial facility maintenance experience in a manufacturing environment. Must have the ability to work in an aerial lift or scissor lift at heights up to 30 feet or higher. Valid Driver’s License. Ability to obtain and maintain a security access badge at our client’s location.

Must be able to work various shifts, alternative work schedules, weekends holidays and overtime when required. Must pass a pre-employment substance abuse test. Physical Requirements: Requires the ability to differentiate colors pertaining to wire color-coding. Regularly lift up to 50 lbs. Regularly climb extension ladders, roof ladder, stepladders, and stairs at least 10 times during shift. Flexibility to bend/stoop, squat, kneel, move in a 90-degree fashion, and stretch repetitively throughout shift.

Some tasks will require the ability to walk extensively throughout facilities during a workday. Some tasks will require repetitive wrist movement. 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 databases, to send/receive messages and to prepare documents including a demonstrated fluency in computer use and Microsoft product line. Ability to interact with all clients in a professional and friendly manner despite periods of stress.

Ability to communicate with others on the telephone and in one-on-one or group discussions, meetings, and presentations. Requires some moving of light to medium weight materials into desks, filing cabinets and other storage locations. Requires ability to attend meetings throughout the site and potentially travel to other Amentum, customer and/or vendor locations in the area. 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. Must obtain STS certification within (12) months of hire date. Associate degree, industrial mechanical, industrial electrical, or related skilled trade or relevant experience. Experience managing a multi-skilled workforce to deliver positive results. Experience utilizing a CMMS, preferably Maximo. Experience in creating metrics and data mining for driving performance results.

Proficiency in Microsoft Office Suites with emphasis on the ability to navigate and formulate within Excel and Access. Working knowledge of hand and power tools. General working knowledge of all production related equipment & systems in a manufacturing type facility. Basic electrical knowledge, sufficient to change motors, fuses, etc. Basic pneumatic and hydraulic systems knowledge. Basic conveyor repair and maintenance knowledge, including replacement of rollers, motors and mechanical equipment.

Compensation Details: $38.00 -$45.00 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: 10/21/2026 - 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. Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S.

government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at https://www.amentum.com/ If you need a reasonable accommodation for any part of the employment process, please complete our Accommodation Request. Requests for accommodation will be considered on a case-by-case basis.

If you need assistance, please reach out to workdaycandidateaccounts@amentum.com EEO including Disability/Protected Veterans Labor Laws Posters Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent.

These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone as a response to an unsolicited email, social media, or dating website request. Amentum will never as ask for a placement fee or any other fee to expedite the hiring process. If you are contacted by anyone offering employment with Amentum, you should never be asked to pay a fee for recruiting.

Amentum personnel will always send email from an identifiable corporate account (ending in @amentum.com) and never from a public email account like Yahoo!, Google, Gmail, or Hotmail. If you are contacted regarding a fraudulent employment proposal, we encourage you to alert your local law enforcement agency/police authority. To read more about Amentum’s commitment to ethics, please click here.