Mission Support and Test Services, LLC

Civil/Structural Engineer I

Posted Date 4 months ago(1/2/2024 8:02 PM)
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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.  In this environment, the best ideas need to be voiced and every opinion matters.  As such, MSTS places great value on Diversity, Equity, and Inclusion and is committed to a diverse and equitable workforce, with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, and perspectives.

  • 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 an early career Civil/Structural Engineer for its On-Site Design Engineering Team.  The site group is based in Mercury, NV and will generate design criteria documents to support projects at the Nevada National Security Site.


Key Responsibilities

  • Participate on walk-downs, generate sketches, help develop conceptual designs, evaluate existing systems, and generate and/or review functional requirement documents.
  • Prepare and check Civil/Structural calculations with and without the use of software.
  • Coordinate with multiple engineering disciplines, facility managers, project managers, and project engineers. 
  • Coordinate execution of assigned projects. 
  • Ensure processes and deliverables comply with laws, codes, orders, and MSTS policies and procedures.
  • Create and update standard structural installation details.
  • Make determination of code applicability for both nuclear and non-nuclear applications. 
  • Specify and evaluate work statements for subcontracts and review/evaluate vendor bids and submittals. 
  • Contribute to strategies, reports and technical proposals. 
  • Build team relationships with technical staff and company organizations.
  • Promptly correct or report any hazard or potential hazard to supervision.
  • Understand the principles associated with the MSTS safety concept.
  • Perform other duties assigned by Management.


  • 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
  • Skill building experience must demonstrate either deeper technical specialization or additional crossdisciplinary knowledge. Graduate research experience may be recognized.
  • Ability to interpret codes and standards applicable to the position.
  • EIT working towards professional engineer license.
  • Execute work in a disciplined manner to demonstrate compliance with laws, codes, orders, and MSTS policies and procedures.
  • Knowledge of industry standard software and computer aided drafting applications is required.
  • May need to be able to work occasional overtime or nightshift, if needed, due to project schedules.
  • The primary work location will be at the Nevada National Security Site (located 65 miles northwest of Las Vegas, Nevada).
  • Schedule will be 4/10s, Monday-Thursday (7:00am - 5:30pm).
  • Pre-placement physical examination, which includes a drug screen, is required. MSTS maintains a substance abuse policy that includes random drug testing.
  • Must possess a valid driver’s license.

MSTS is required by DOE directive to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants offered employment with MSTS are also subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. In addition, Applicants for employment must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship, at least 18 years of age. Reference DOE Order 472.2, “Personnel Security”. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.


Department of Energy Q Clearance (position will be cleared to this level). Reviews and tests for the absence of any illegal drug as defined in 10 CFR Part 707.4, “Workplace Substance Abuse Programs at DOE Sites,” will be conducted.  Applicant selected will be subject to a Federal background investigation, required to participate in subsequent reinvestigations, and must meet the eligibility requirements for access to classified matter. Successful completion of a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination, may also be required. Reference 10 CFR Part 709, “Counterintelligence Evaluation Program.”


MSTS is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status or other characteristics protected by law. MSTS is a background screening, drug-free workplace.


Annual salary range for this position is: $64,688.00 - $97,032.00.


Starting salary is determined based on the position market value, the individual candidate education and experience and internal equity. 


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