Maintenance Supervisor

Amentum; Philadelphia (Philadelphia County); On-site; USD 80,000 - 85,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) and retirement benefits

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Facilities Maintenance Supervisor focused on HVAC to lead daily maintenance operations and act as the site’s lead mechanical resource. You will supervise technicians, manage work orders in CMMS, and ensure safe, reliable operation of building systems.

The role emphasizes hands-on troubleshooting of HVAC/ mechanical systems, coordination with vendors, and compliance with OSHA and site procedures. Strong leadership and field coaching are essential.

Qualifications

• 5+ years of facilities maintenance experience.
• 2+ years of supervisory or team leadership experience.
• Strong troubleshooting experience with HVAC mechanical systems.
• EPA Universal Refrigerant Certification.
• Experience with CMMS systems.
• Ability to read mechanical drawings and control schematics.

Responsibilities

• Supervise and coordinate daily activities of maintenance technicians and service providers.
• Assign, prioritize, and monitor work orders to ensure timely completion.
• Provide field leadership, coaching, and technical guidance to direct reports.
• Conduct routine inspections to ensure quality workmanship and adherence to standards.
• Enforce safety procedures, PPE requirements, and regulatory compliance.
• Perform preventive maintenance and corrective repairs on building systems including HVAC, electrical, plumbing, and general building equipment.
• Troubleshoot and resolve complex HVAC issues affecting occupant comfort, manufacturing environments, or warehouse conditions.
• Coordinate vendor access and oversee subcontractor work execution.

Skills

Supervisory experience

HVAC troubleshooting

Reading mechanical drawings

CMMS experience

Education

EPA Universal Refrigerant Certification

Tools

CMMS (Maximo or equivalent)

Job description

Position Summary

The Facilities Maintenance Supervisor (Working Supervisor - HVAC Focused) is responsible for leading daily maintenance operations with primary technical expertise in HVAC and mechanical building systems. This role combines frontline supervision with hands-on technical execution and serves as the site’s lead mechanical resource. The Supervisor ensures safe, reliable, and efficient operation of HVAC systems while overseeing a team of technicians and supporting overall facility performance.

Operational Supervision

• Supervise and coordinate daily activities of maintenance technicians and service providers.
• Assign, prioritize, and monitor work orders to ensure timely completion aligned with service level agreements (SLAs).
• Provide field leadership, coaching, and technical guidance to direct reports.
• Conduct routine inspections to ensure quality workmanship and adherence to standards.
• Enforce safety procedures, PPE requirements, and regulatory compliance.

Working Supervisor Duties (Hands-On)

• Perform preventive maintenance and corrective repairs on building systems including HVAC, electrical, plumbing, and general building equipment.
• Troubleshoot and resolve complex HVAC issues affecting occupant comfort, manufacturing environments, or warehouse conditions.
• Troubleshoot other mechanical and facility system issues and lead complex repairs.
• Support emergency response and after-hours call coverage as required.
• Assist with installations, minor construction, and repair projects.
• Execute general maintenance tasks including fixtures, doors, ceilings, restroom repairs, and basic carpentry.

Work Management & Systems

• Utilize CMMS platforms (e.g., Maximo or equivalent) to manage work orders, labor tracking, and asset history.
• Ensure accurate documentation of completed work and maintenance activities.
• Monitor preventive maintenance compliance and backlog performance.
• Coordinate vendor access and oversee subcontractor work execution.

Client & Operational Support

• Serve as the primary on-site escalation point for operational issues.
• Communicate work status, risks, and priorities to Site Manager and stakeholders.
• Support service delivery reporting and KPI performance tracking.
• Maintain strong customer service relationships with building occupants.
• Support predictive maintenance technologies where applicable (infrared, vibration, controls trending).

Safety & Compliance

• Promote a strong safety culture and lead toolbox talks and safety briefings.
• Ensure compliance with OSHA standards and site-specific procedures.
• Support regulatory inspections and audit readiness.

Required Qualifications

• 5+ years of facilities maintenance experience.
• 2+ years of supervisory or team leadership experience.
• Strong troubleshooting experience with HVAC mechanical systems.
• EPA Universal Refrigerant Certification.
• Experience with CMMS systems.
• Ability to read mechanical drawings and control schematics.

Preferred Qualifications

• HVAC trade license.
• Experience within IFM and/or GMP environments.
• OSHA 10 or OSHA 30 certification.
• Experience managing vendors or subcontractors.

Physical Requirements

• Ability to lift up to 50 lbs.
• Frequent walking, climbing ladders, bending, and working in mechanical spaces.
• Ability to respond to emergency situations as needed.

Compensation Details

$80,000-$85,000

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

• 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

10/06/2026 - 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.