Senior Diagnostic Scientist

Job Description

MST 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 401(k); 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., Jacobs Engineering Group Inc., and HII Nuclear Inc.

Do you want to be a part of a national security mission that conducts research and development? Mission Support and Test Services, LLC (MSTS) is seeking a full‑time Senior Scientist to work as part of a multidisciplinary team to provide diagnostic development and deployment support in a national laboratory environment. The Stockpile Experimentation & Operations (SEO) organization is looking for a highly motivated Scientist to collaborate in design, development, characterization, and deployment of diagnostics systems on high‑stake weapons physics experiments conducted at the Principal Underground Laboratory for Subcritical Experiments (PULSE) and other facilities located at the Nevada National Security Site (NNSS).

This Diagnostic Scientist will report primarily to the NNSS and will support deployment efforts for a wide variety of diagnostic detection and recording systems, with an emphasis on theory and practical applications of diagnostics systems such as interferometry and radiographic imaging systems.

• Work alongside, and at times, lead a team of Scientists, Engineers, and Technicians in the development and deployment of optical, electrical, and laser diagnostic data acquisition systems.
• Responsible for operating diagnostic equipment such as lasers, optical imaging equipment, oscilloscopes, function generators, delay generators, fiber optic inspection and cleaning equipment, time domain reflectometers, etc.
• Provides support for execution of program/project activities and data collection (i.e., classified systems/networks, diagnostics, x‑rays, and laser systems).
• Contribute to the research and development of new interferometry diagnostics and/or refine current systems to increase data fidelity.
• Serve as a technical subject matter expert and mentor to junior team members.
• Works with peers and other disciplines to coordinate project execution compliance.
• Alone or as a member of a team, participate in researching, extracting, analyzing and compiling technical data.
• Author reports, graphs, proposals, studies and correspondence related to project work.
• Assists in preliminary engineering analysis, conceptual design and engineering calculations.
• Assists in and reviews project design and technical documents.
• Performs drafting assignments, revises prints and prepares sketches.
• Participate in long‑term scheduling meetings to prioritize and deconflict activities required to maintain experimental execution.
• Serve as a Work Package Manager (WPM) and plan, prepare, and maintain a budget that supports NNSS Diagnostic fielding.
• Perform other duties as assigned.

• Bachelor's in a calculus‑based technical (STEM) field plus at least 5 years relevant experience. Skill building experience must demonstrate either deeper technical…