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Amentum

Government engineering and technical services provider

Wastewater Supervisor

Equipment MaintenanceConfirmed live in the last 24 hours
Full-timeIwakuni, Yamaguchi, JapanNo salary listed

About the Job

Requirements

  • A high school diploma or GED, or the country equivalent, is required at minimum, along with completion of a trade-related program.
  • Must work well independently and as part of a team and handle issues with tact and diplomacy.
  • Must have organizational and time-management skills, communicate effectively, exercise sound judgment, and make independent decisions.
  • Must be able to read and interpret design drawings and specifications as required.
  • Must be willing and able to lift and move items, parts, assemblies, and equipment up to the safety regulation maximum.
  • Must be willing and able to perform physical activities including heavy lifting, climbing in and out of equipment, crawling, and working outdoors.
  • SOFA dependents must obtain the approved request to engage in commercial activities or private employment in Japan through the Staff Judge Advocate at MCAS Iwakuni for DBIDS processing as a contractor.
  • If not currently a resident of Japan, must possess a valid passport from the home country with at least 12 months remaining before expiration.
  • Applicants already in Japan must hold their own visa sponsorship or residency unless they are internal applicants.
  • Must apply for and receive DBIDS enrollment and identification before the first workday; SOFA dependents must hold Contractor Identification under installation-access requirements. Contractor identification is required for employment and continued employment.
  • Must be able to obtain and maintain a Japanese driver's license within 90 days of hire, if on an IDP, or hold a SOFA license, and operate a company-provided vehicle on MCAS Iwakuni and Japanese roads as required. Vehicle operators are subject to Japanese and U.S. military traffic citation point systems.
  • Non-locally hired personnel must obtain and maintain the legal ability to operate a company-provided vehicle both on and off the installation for commuting and/or on-site transportation, or arrange their own transportation.
  • Must be approved to obtain and able to maintain facility credentials and authorization.

Responsibilities

  • Participate as a team member in the safe and efficient operation and maintenance of two activated sludge wastewater plants that must operate 24 hours a day, 365 days a year.
  • Maintain custodial responsibility for work areas and manage tools, equipment, and spare parts for the wastewater treatment plants.
  • Repair, maintain, install, and modernize wastewater buildings and grounds.
  • Test installed, modified, or repaired systems to ensure they meet specifications and equipment performance requirements.
  • Collect and analyze data and report results according to the level of expertise gained.
  • Interpret system operation readings and recommend corrective actions.
  • Advise the immediate supervisor of job progress and material and labor requirements.
  • Work directly with other departments to plan and complete tasks.
  • During emergencies and natural disasters, respond for more than a normal eight-hour shift as needed to help keep the water treatment facility and system items in operational compliance.
  • Participate in a 24/7 duty phone rotation.
  • Drive in the performance of work duties and operate a company-provided motor vehicle as job duties require.
  • Perform other duties as assigned.

Desired Qualifications

  • Experience in municipal water or wastewater treatment systems is preferred.
  • Facilities preventive maintenance experience is preferred.
  • Knowledge of the techniques, equipment, materials, and regulations used in maintenance and repair of water and wastewater treatment equipment and systems is preferred.
  • Speaking, reading, and writing Japanese, including reading and using building diagrams and technical manuals, is preferred; bilingual English and Japanese is preferred.
  • A wastewater-related certification or equivalent experience is preferred, such as Sewage Treatment Engineer, Sewer Line Engineer, Aeration Tank Technician, Second Grade Electrical Works Engineer, Sludge Treatment Facility Engineer, Dry Equipment Operator, Fourth Grade Dangerous Material Handler, Worker for Special Chemicals, Confined Space Worker, Qualified Rigger, Qualified Gas and Arc Welder, Mobile and Small Crane Operator, or Septic Tank Technical Manager.

About the Company

Amentum

Government engineering and technical services provider

Amentum provides technical and engineering services to government agencies to support high-stakes missions such as space launch, nuclear cleanup, and military operations. Its offerings combine workforce, engineering, and mission-support capabilities across the full lifecycle—from planning and design to operations and sustainment—delivered as contracted services. The company differentiates itself through scale and breadth: formed from a spin-off and expanded by acquiring DynCorp and PAE, and later merging with Jacobs’ Critical Mission Solutions and Cyber & Intelligence units, making it one of the largest government services contractors with about 53,000 employees and a public listing (AMTM). Its main goal is to help the U.S. and its allies achieve mission success for critical national programs by providing comprehensive, reliable government-focused technical services.

Company size
10,001+
Company stage
IPO
Headquarters
Chantilly, VA
Founded
2020

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