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Facility System Engineer ; Civil, Mechanical, or Electrical Engineer

Job in Mercury, Nye County, Nevada, 89023, USA
Listing for: Nevada National Security Sites
Full Time position
Listed on 2026-02-16
Job specializations:
  • Engineering
    Electrical Engineering, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Facility System Engineer I (Civil, Mechanical, or Electrical Engineer)
Location: Mercury

Overview

Facility System Engineer I (Civil, Mechanical, or Electrical Engineer) – Mercury, NV, United States

Job Description:

Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our mission is to help ensure the security of the United States and its allies by providing high-hazard experimentation and incident response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the Site’s Cold War legacy.

Our vision is to be the user site of choice for large-scale, high-hazard, national security experimentation, with premier facilities and capabilities below ground, on the ground, and in the air. Our 2,750+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today.

  • MSTS offers our full-time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more.
  • MSTS is a limited liability company consisting of Honeywell International Inc. (Honeywell), Jacobs Engineering Group Inc. (Jacobs), and HII Nuclear Inc.
Responsibilities

Performs duties as a Facility System Engineer (Engineer I) at one of the nuclear facilities or high-hazard facilities in the forward areas at the Nevada National Security Site (NNSS). Facility System Engineers are instrumental in ensuring these nuclear and high-hazard facilities are capable of executing national-level experiments that ensure the nation’s nuclear weapons stockpile remains safe, secure, and effective.

  • Supports maintaining overall cognizance of assigned facility systems, providing systems engineering support for operations and maintenance, and technical support of line management safety responsibilities for ensuring continued system operational readiness.
  • Validates physical configuration of assigned systems. Maintains and updates system documents for Configuration Management (CM). Understands the functions and performance criteria for assigned systems per the Safety Basis, and acts as the subject matter expert for assigned systems.
  • Supports the In-service-Inspection and Technical Surveillance Requirement execution of assigned systems.
  • Contribute to solutions of assignment-related problems and issues with a limited scope and basic complexity, using a well-defined set of technologies. Solutions use established basic standards, practices and procedures as well as technical knowledge to address problems and complete tasks.
  • Participate in developing field programs and designs using pre-determined principles and practices.
  • Contribute to designs, strategies, reports and technical proposals.
  • Perform design and technical analysis activities using prescribed codes and standards, computer software, and generally accepted best management practices.
  • Assist in defining specifications for procurements and initiate purchase requests.
  • Work with outside vendors as required obtaining relevant information.
  • Develop a working knowledge of codes and standards of other disciplines.
  • Coordinate work within their discipline on moderately complex projects.
  • Often serves as a member of work teams.
  • May monitor work of and provide guidance to skilled technicians and other support personnel.
  • Perform other duties assigned by Management.
Qualifications

Minimum

Education and Experience:

  • Bachelor’s degree in an engineering program accredited by the Accreditation Board for Engineering and Technology (ABET) required for Civil, Mechanical and Electrical engineering degrees;
  • Or, Calculus-based STEM bachelor’s degree in engineering
  • Or, for Architects, Certification from the National Council or Architectural Registration Board (NCARB)
  • Or Professional Engineer license
  • Demonstrated desire to learn and innovate.
  • Demonstrated ability to follow instructions and procedures.
  • Knowledge of instrumentation & control,…
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