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Scorpius Systems Engineer (Multi-Level)

Nevada National Security Sites
North Las Vegas, United Statesfull_timeVerifiedPosted 1 Dec 2025
💰 $181,854/yr($99,341/yr$181,854/yr)

About the role

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.

The Enhanced Capabilities for Subcritical Experiments (ECSE) Directorate is seeking an experienced Systems Engineer (Senior or Principal level) to support the implementation of design and efficient operation of Scorpius Accelerator. Scorpius will be used to generate high-energy x-ray bursts to take radiographic images on subcritical experiments (SCEs) at the Principal Underground Laboratory for Subcritical Experimentation (PULSE) facility located at the Nevada National Security Site (NNSS). This position is based in Nevada but may require travel to Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and Sandia National Laboratories (SNL).

 

Key Responsibilities:

  • Collaborate with our partners at LANL, LLNL, and SNL to understand and document the needs and constraints of the Scorpius system, defining both functional and non-functional requirements.
  • Collaborate with the Asset Manager to develop a structured hierarchy to enable the tracking of individual components of the accelerator up to the entire integrated system. 
  • Collaborate with the Asset Manager to develop Asset management Plans for controlling lifecycle maintenance of the Scorpius accelerator.
  • Assist with the integration of CREO based design documents from our partners at LANL, LLNL, and SNL into a cohesive, fully functional model.
  • Work with Scorpius system Subject Matter Experts to document the structure, components, and interrelationships within the Scorpius system, ensuring that all parts work effectively together. 
  • Perform and/or support verification and validation testing to ensure that the system meets the defined requirements. 
  • Identify risks and develop mitigations plans, working with the LANL risk manager.
  • Employ trouble-shooting and problem-solving skills to resolve unexpected issues that develop during installation, commissioning and operations. 
  • Develop documentation to ensure configuration management of the system is maintained over its 30-year lifecycle. 
  • This job requires everyday collaboration with engineers, technicians, designers, Craft, vendors, and Laboratory Partners to make sure that the configuration management of the system is established and maintained. 
  • Plan and prepare administrative and technical documents as required.
  • Actively participate in regulatory investigations, corrective action plans, and continuous improvement planning.
  • Frequent travel to the NNSS forward areas is required (approximately 30 miles beyond the Mercury gate).

 Senior Engineer:

  • Devises imaginative, thorough, and practical solutions requiring evaluation of standards and processes. Solutions may be unique.
  • Contributes to strategies, reports and technical proposals.
  • Receives general direction and technical guidance on complex issues and projects of broad scope. 
  • Performs technical activities that require interpretation and correlation of codes and standards, complex computer software, and unique processes and procedures tailored for the work being executed.
  • Serves as lead on teams requiring coordination with other teams. Coordinates work with other project team members.

Principal Engineer

  • Devises solutions to highly complex technical problems of broad scope. Solutions may require resolving conflicting customer expectations and de

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Company

Nevada National Security Sites

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