Facility​/Support Engineer; Senior Engineer

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.

MSTS is seeking a Facility/Support Engineer (Senior Engineer) at our Device Assembly Facility (DAF). This position will be a hybrid System Engineer position specifically tailored to support additional needs of the DAF Facility Testbed Engineering (F&TE) Team. DAF F&TE consists of system engineers, cognizant system engineers, design authorities, and associated personnel responsible for maintaining configuration management and supporting maintenance and operation of the engineered systems within this nuclear facility.

The position will support with planning, coordination, and management of work that includes design engineering, construction, and other support organizations. The DAF is the largest nuclear facility located within the Forward Areas of the Nevada National Security Site (NNSS) that supports Stockpile Stewardship mandates and related experiments performed by the National Weapons Laboratories.

• Assist and help lead the system engineering staff with development, tracking, and closeout of change control documentation.
• Manage preparation of red‑line drawings following post‑construction activities.
• Manage validation of physical configuration and updating system documents for configuration management (CM), including walkdowns of structures, systems, and components.
• Assist with receipt, review, and distribution of design documents and monitoring of design review deadlines.
• Support with other assigned nuclear safety activities, including preparation and review of material‑at‑risk (MAR) calculations and unreviewed safety question (USQ) screenings and determinations.
• Develop knowledge of various facility operations, systems, and processes.
• Develop a working knowledge of codes and standards from other disciplines.
• Apply knowledge and expertise in multiple technical disciplines and ingenuity to implement effective technical solutions.
• Often serve as a member of work teams.
• Monitor work of and provide guidance to skilled technicians and other support personnel.
• Provide direction, assistance, and mentor early‑career engineers.

• 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, a calculus‑based STEM bachelor’s degree in engineering
  • Or, for architects, certification from the National Council or Architectural Registration Board (NCARB)
  • Or a professional engineer license
• Plus at least 5 years of relevant experience. Skill‑building experience must demonstrate either deeper technical specialization or additional cross‑disciplinary knowledge; graduate research experience may be recognized.
• Knowledge of how codes and standards from other disciplines affect their…