Heavy Fleet & Equipment Mechanical Engineer II
Listed on 2026-08-03
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Engineering
Systems Engineer
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. (See NNSS.gov for our unique capabilities.) 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.
Heavy Fleet & Equipment, a part of Fleet & Critical Site Infrastructure (FCSI), is seeking a Mechanical Engineer II to validate physical configuration of assigned systems, maintain system documents for Configuration Management, act as subject matter experts, conduct inspections, develop field programs and design, perform design and technical analysis, coordinate with other departments and vendors, define procurement specifications, and monitor the work technicians.
This position plays a critical role in the critical infrastructure that helps secure our nation's future.
- Perform duties as a facility/system engineer. Serve as Engineer for the NNSS Facility as an Engineer for Fleet, Fuel, and Equipment Services (FF&E) within the Critical Site Infrastructure Division, reporting directly to the Fleet, Fuel, & Equipment Manager.
- Support and execute all FF&E Fleet and Equipment and assisting Facility Hoisting and Rigging Program activities at the NNSS and ensure compliance with Occupational Safety and Health Administration (OSHA), American Society of Mechanical Engineers (ASME), Department of Energy (DOE) H&R Standards, and Company documents.
- Interact frequently with all levels of Management throughout the site. Also interact with SME counterparts throughout the complex to ensure exchange of information with them.
- Responsible for 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.
- Select and implement computer applications for their field.
- Prepare or contribute to designs, strategies, reports and technical proposals.
- Give quarterly presentations on heavy construction equipment and underground equipment health and status.
- Perform design and technical analysis activities using prescribed codes and standards, computer software, and generally accepted best management practices.
- Perform frequent coordination of discipline information with other departments within the company and with outside vendors.
- 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 serve as a member of work teams.
- Define specifications for procurements and initiates purchase requests.
- Devise solutions to highly complex technical problems of broad scope. Solutions may require resolving conflicting customer expectations and design requirements, utilizing unconventional technology and materials, and cross-disciplinary integration.
- Evaluate processes, procedures, and work instructions to improve performance.
- Pr…
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