← All Positions
Posted Apr 10, 2026

Electro-Mechanical Engineer I

Apply Now
Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site for the U.S. National Nuclear Security Administration. They are seeking an Electro-Mechanical Engineer I to provide engineering expertise and hands-on support for various projects, focusing on the design and analysis of mechanical assemblies and components. Responsibilities - Contributes to the design of mechanical assemblies and components using SolidWorks - Assists in performing design and technical analysis activities using prescribed codes, standards, and computer software - Contributes to designs, strategies, reports, and technical proposals - Supports field programs and designs using pre-determined principles and practices - Provides hands-on field support, including the use of basic hand tools for mechanical builds and assembly - Works independently on assigned tasks within an established framework, following detailed technical specifications - Assists in defining specifications for procurements, initiates purchase requests - Supports the engagement with customers, other organizations, and collaborates with National Weapons laboratories - Coordinates discipline information with other departments and outside vendors to obtain relevant information - Serves as a member of work teams to contribute to solutions for assignment-related problems - Perform other duties assigned by Management Skills - 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 - Knowledge of, and skill in applying, fundamental engineering principles, concepts, and practices - Knowledge of computer-aided design software (specifically SolidWorks) contributes to the design of mechanical assemblies and components - Knowledge of basic hand tools and their application in mechanical builds and assembly is required - Skill in applying established technical specifications, codes, and standards to perform design analysis and support field programs - Must possess a valid driver's license - 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 - 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 Benefits - 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 Company Overview - The Nevada National Security Sites help ensure the security of the United States and its allies by: supporting the stewardship of the nation’s nuclear deterrent; providing nuclear and radiological emergency response capabilities and training; contributing to key nonproliferation and arms control initiatives; executing national-level experiments in support of the National Laboratories; working with national security customers and other federal agencies on important national security activities; and providing long-term environmental stewardship of the NNSS’s Cold War legacy. It was founded in undefined, and is headquartered in North Las Vegas, Nevada, US, with a workforce of 1001-5000 employees. Its website is https://www.nnss.gov/.