The posting
Amentum is seeking an experienced licensed commercial plumber to support a Facilities Support O&M Services Contract. Must be able to install, service, and maintain plumbing systems in commercial, institutional, industrial, and residential like facilities. This role requires strong knowledge of UPC/IPC codes, the ability to work from detailed construction documents, and experience coordinating with other trades on active job sites. The Plumber will be responsible for providing day-to-day support for all facilities designated under O&M operations. Plumbing O&M typically supports M-F from 06:30am to 3:30pm and have competency for the following:
- Responsible for maintaining a safe workplace and ensuring that safety is the highest priority in the workplace in accordance to OHSA and local safety codes.
- Comply with all Environmental Health & Safety and Quality Assurance requirements and goals.
- Comply with all site policies and procedures.
- Follow IBC/ plumbing code, NFPA, and basic electrical when applicable to NEC codes.
- Follow instructions to detail for the task at hand from the O&M supervisor.
- Provide verbal feedback or detailed report to the O&M supervisor daily.
- Execute generated workorders from site’s computer maintenance management system (CMMS).
- Making standard shop computations relating to dimensions of job/task to be performed.
- Studies building plans and working drawings to determine work aids required, and sequence of installations.
- Responsible for the planning and laying out work from blueprints, rough draft drawings, models, or verbal instructions, while using a variety plumbing hand tools, portable power tools, and standard measuring instruments.
- Selects appropriate materials necessary for the task at hand.
- Assembles, installs, and repairs pipes, fittings, and fixtures of heating, water, and drainage systems, septic systems (to include grease traps) and lift stations according to specifications and plumbing codes.
- Assembles/repairs piping and associated valves, fittings, and piping composed multiple types of material such as: black iron, galvanized, brass, and copper. In addition, various types of PVC to include CPVC, PEX, PVC, and P.E (gas piping for LP).
- Cuts and threads pipe using pipe cutters, a cutting torch, and a pipe-threading machine.
- Joins pipe by mechanical fittings, soldering, threading, and solvent glue/weld.
- Inspects structure to ascertain obstructions to be avoided to prevent weak points of structure resulting from installation of pipe.
- Locates and marks position of pipe, pipe connections, and passage holes for pipes in walls and floors. Cuts openings in walls and floors to accommodate pipe and pipe fittings using hand tools and power tools.
- Installs and repairs plumbing fixtures, such as sinks, commodes, bathtubs, shower stalls, water heaters, garbage disposal units, dishwashers, bottle fillers, and water filters/softeners.
- Repairs leaking faucets, burst pipes, clogged drains, water mains, sewer mains, maintains septic systems and pneumatic systems.
- Fills pipe system with water or air (Pressure test) and reads pressure gauges to determine whether system is compromised with leaks and makes repairs as required.
- Prepare and submit detailed purchase requests for materials for reoccurring maintenance for bench stock, one offs, and new work tasks assigned from the O&M Supervisor.
- Assist with maintaining shop inventory for day-to-day bench stock items.
- Perform jobs/tasks in outside unconditioned environment working in the extreme hot and humid weather and cold weather below freezing.
- Responsible for maintaining and cleaning government issued items and/or property.
- Perform other duties and activities as directed such as: basic painting, lawn maintenance with grass cutting and weed eating as needed, and working with other trades to complete general task at hand.
- Able to obtain and maintain a forklift certification.
- Able to work in areas of height of boom, scissor, and or man basket with fall protection.
Minimum Qualifications:
- Ability to obtain and maintain a TS/SCI clearance.
- H.S diploma or equivalent.
- 10 yrs. experience performing as a Plumber.
- Demonstrated experience on active commercial construction sites
- Provide applicable certifications (Military technical training, Journeyman, and/or Master)
- Computer literacy to navigate online required training, time keeping, and email.
- A valid Driver's license form applicant's home state is required.
- Excellent interpersonal and communication skills.
- Good customer service skills.
- Self-starter and motivated to perform at high level.
- Can define problems and collect data while establishing facts to draw valid conclusions.
- Be able to work in a team environment.
- Be a problem solver or solution maker.
Physical & Work Environment Duties:
- Being fit for duty.
- Ability to lift 50 lbs. repeatedly or as needed performing various assigned task.
- Ability to do the following for extended periods of time: stoop, bend, kneel, reach, twist and carry.
- Ability to stand 8-10 hrs. per day.
- Ability to work in a fast paced, dynamic environment, and have flexibility to move from one task to the next or work multiple tasks simultaneously.
- Comfortable working in mechanical rooms, rooftops, crawl spaces, and plenums.
- Comfortable with using tools such as shovels and post hole diggers.
- Comfortable with driving vehicles connected with trailers (water tanks and portalets)
Preferred Qualifications:
- CDL
- Heavy equipment experience/ certifications
- OSHA 10 or 30
- Backflow prevention certification
Compensation Details:
$28.00 - $35.00
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.
Compensation Details:
$28.00-$35.00
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:
10/05/2026 - 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.
