Mission Support and Test Services, LLC

Engineer I (Software/Computer Engineer)

Posted Date 4 months ago(1/3/2024 7:57 AM)
Job ID
# of Openings
Location : City
Las Vegas
Location : State/Province (Full Name)


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.


Are you interested in some of the brightest talent in the world to strengthen the United States’ security? Come join the Nevada National Security Site (NNSS), where our employees apply their expertise to create solutions for high-hazard, classified, and highly complex experiments that help us keep the planet safe.

The Science and Technology (S&T) Directorate is seeking early career engineers to engage with our national security mission in research, development, and experimentation. You will have the opportunity to work on teams that ensure the security of the United States and its allies by: supporting the stewardship of the nation’s nuclear deterrent; contributing to key nonproliferation and arms control initiatives; national-level experiments in support of the National Nuclear Security Administration’s National Laboratories; working with national security partners such as the Department of Defense, the Intelligence Community, and other federal agencies on important national security activities; and providing long-term environmental stewardship of the NNSS’s Cold

As a member of the S&T Directorate’s Computing & Data Sciences division, you will work collaboratively with a diverse group of colleagues on challenging problems of national significance, with opportunities to work in the experimental field and engage with a broader team of scientists and engineers. Multiple positions are available across a spectrum of experience levels, with benefits and requirements requisite with experience and educational background.


Key Responsibilities

  • Support work within the Software Development Section for the Remote Sensing Laboratory.
  • Design, develop, and test custom solutions in C#, Java, and associated technologies.
  • Work within small teams on projects involving technical integration, research and development, and emergency response operations. 
  • Maintain confidentiality and a professional demeanor in daily activities.
  • Perform related work as assigned by Management.


  • Minimum Education and Experience:
    • 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
    • Or Professional Engineer license
  • Skill building experience must demonstrate either deeper technical specialization or additional cross-disciplinary knowledge. 
  • Knowledgeable regarding design, development, testing, and/or implementation of complex database-driven systems using C# and the .Net framework preferred. 
  • Experience in full stack, backend RESTful services, and web development using Typescript/Javascript.
  • Ability to work independently, set own work priorities, and effectively multitask in a fast-paced environment. 
  • Ability to be able to anticipate problems and changes in priorities. 
  • Ability to cope with conflicting deadlines and frequent interruptions. 
  • Ability to interface and communicate effectively with peers within MSTS, representatives of National Nuclear Security Administration/Nevada Site Office, other government agencies, and peers from other contractor/national laboratory organizations. 
  • Must be willing and able to travel worldwide, sometimes under severe conditions, as a member of National Nuclear Security Administration (NNSA) emergency response teams. 
  • Must be willing and able to perform work during non-standard hours, take 24 hour on call duty, and deploy worldwide travel on short notice. Must submit to immunizations for worldwide travel. Must be capable of performing moderate lifting and be medically qualified for worldwide travel. 
  • Ability to interpret codes and standards applicable to the position.
  • The primary work location will be Las Vegas, Nevada.
  • Work schedule for this position will be 4/10’s, Monday – Thursday (subject to change).
  • 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: $63,044.80- $94,577.60.

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


Sorry the Share function is not working properly at this moment. Please refresh the page and try again later.
Share on your newsfeed