HVAC Mechanic

Amentum; California; On-site; USD 36,000 - 52,000; Full time

Benefits offered by this job

Health and dental insurance

401(k) matching

Paid vacation

Job summary

Amentum is seeking an HVAC mechanic to install, service, and repair environmental-control systems across a range of commercial settings. The role requires reading blueprints, fabricating ductwork, and performing tests to ensure proper operation.

The position demands a universal HVAC license, 3–5 years of experience, and the ability to pass physical and background checks. It offers hourly pay, health benefits, vacation, and 401(k) options, with potential travel.

Qualifications

• High school diploma or GED required.
• Three to five years' HVAC experience required.
• Universal HVAC license required.
• Must be physically capable of lifting 45 pounds.
• Valid Driver’s License required; license must be maintained.
• Ability to pass pre-employment physical and urinary analysis.
• Must be able to pass Security Clearance.
• Must be able to work any shift, weekends, and extra hours.
• English speaking, reading and understanding required.
• Travel may be required.

Responsibilities

• Install, service and repair environmental-control systems in residences, department stores, offices, and other facilities.
• Fabricate, assemble, and install ductwork and chassis parts using hand tools, welding equipment, and blueprints.
• Connect motors, compressors, and controls; test system pressure and check for leaks; adjust controls as needed.
• Observe gauges and replace defective electrical components; ensure safe operation and proper performance of installations.

Skills

Physical ability to lift 45 pounds

Valid driver’s license

English reading/writing

Travel willingness

Pre-employment physical & urine test

Shift/weekend flexibility

Education

High school diploma or GED

Universal HVAC license

Job description

Essential Responsibilities include:

• The Heating, Ventilation, and Air-Conditioning Mechanic installs, services and repairs environmental-control systems in residences, department stores, office buildings, and other commercial establishments, utilizing knowledge of refrigeration theory, pipefitting and structural layout, mounts compressor and condenser units on platform or floor, using hand tools, following blueprints or engineering specifications, fabricates, assembles and installs ductwork and chassis parts, using portable metalworking tools and welding equipment, and installs evaporator unit in chassis or in air-duct system, using hand tools.
• This mechanic also cuts and bends tubing to correct length and shape, using cutting and bending equipment and tools, cuts and threads pipe, using machine-threading or hand-threading equipment, joins tubing or pipes to various refrigerating units by means of sleeves, couplings or unions, and solders joints, using torch, forming complete circuit for refrigerant, installs expansion and discharge valves in circuit.
• This worker connects motors, compressors, temperature controls, humidity controls, and circulating ventilation fans to control panels and connects control panels to power source; installs air and water filters in completed installation, injects small amount of refrigerant into compressor to test systems and adds Freon gas to build up prescribed operating pressure.
• This mechanic observes pressure and vacuum gauges and adjusts controls to insure proper operation, tests joints and connections for gas leaks, using gauges or soap-and-water solution, wraps pipes in insulation batting and secures them in place with cement or wire bands, replaces defective breaker controls, thermostats, switches, fuses and electrical wiring to repair installed units, may install, repair and service air conditioners, ranging from fifteen to twenty tons cooling capacity in warehouses and small factory buildings.

Minimum Qualifications

• High school diploma or General Education Degree (GED) is required.
• Minimum of three to five years' experience required.
• Must possess a universal HVAC license.
• Must be physically capable of lifting 45 pounds, standing on stepladders, and reaching overhead.
• Must possess a valid driver’s license.
• Must maintain a valid driver’s license to operate Amentum or Government motorized equipment/vehicles.
• Position may require travel.
• Position requires the ability to pass and maintain a Security Clearance.
• Must be able to speak, read and understand English.
• This position requires the candidate to pass a pre-employment physical examination and urinary analysis.
• Must be available for any shift, must be willing to work weekends and other hours as needed.

Work Environment, Physical Demands, and Mental Demands:

While performing the duties of this job the employee is frequently required to walk; use hands to finger, handle, or feel; reach with hands and arms; talk or hear; and taste or smell. Requires climbing on ladders, scaffolding, and platforms standing, bending, and working in cramped areas; lifting and carrying tools and equipment which occasionally may weigh over 40 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, and the ability to adjust focus. While performing the duties of this job, the employee is frequently exposed to moving mechanical parts. The employee is occasionally exposed to wet and/or humid conditions; high, precarious places; fumes or airborne particles, toxic or caustic chemicals; outside weather conditions; extreme cold; extreme heat; risk and risk of electrical shock. The noise level in the work environment is usually moderate.

Other Responsibilities:

Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams. Quality - Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities. Procedure Compliance - Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.

Compensation & Benefits

HIRING HOURLY Rate of Pay:$31.85 (Hourly rate set by CBA)

• Employees are provided with $7.50 per hour paid, up to 80 hours per pay period for the purchase of the following benefits: medical, dental, AD&D insurance, vision, life insurance, long-term disability, employee assistance program, and short-term disability.
• Paid vacation. Annual allotment in the form of a biweekly accrual as follows: 144 hours for 0-5 years of service, 194 hours for 5-10 years of service, 224 hours for 10-15 years of service, and 264 for more than 15 years of service.
• 401k
• 11 Paid holidays annually (prorated dependent on hire date)

Compensation Details:

$31.85

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.