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Sandia National Laboratories Logo Sandia National Laboratories · IT - Administration

Senior/Principal R&D Mechanical Engineer

United States, Albuquerque 117500.00 - 235700.00 USD / Year · Job Posted May 03, 2026
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Job Description

Are you ready to lead mission-critical mechanical engineering efforts that sustain and advance the W78 stockpile system? We are seeking an R&D Mechanical Engineer to lead mechanical efforts supporting W78 stockpile system sustainment. In this role, you will serve as the oversight engineer responsible for the design, analysis, testing, and troubleshooting of key mechanical components, as well as assist the JTA 6 PRT lead in developing instrumented Joint Test Assemblies (JTAs) for system flight testing. You will collaborate closely with system engineers, DOE/DoW customers, contractors, and production plants to ensure integrated system requirements are precisely met. Your work will directly contribute to the reliability and longevity of critical national security systems.

Job Responsibility

  • Contribute to a new JTA PRT focused on creating an instrumented JTA system to sustain long-term (end-of-life) system flight test capabilities
  • Assist the JTA 6 PRT lead in developing instrumented Joint Test Assemblies (JTAs) for system flight testing
  • Collaborate with system engineers and stakeholders to maintain a comprehensive understanding of integrated system requirements and ensure mechanical engineering efforts align with project goals
  • Develop and implement strategies to sustain safety, reliability, and operational effectiveness of mechanical systems throughout their lifecycle
  • Analyze system performance and validate mechanical environments through ground and flight testing, component-level testing, and simulation tools, ensuring mechanical systems meet performance specifications at all assembly levels
  • Manage work package agreements, project schedules, and budgets to ensure timely and efficient execution of assigned activities
  • Support anomaly and stockpile finding investigations by conducting root cause analysis and developing potential solutions
  • Prepare technical documentation including white papers, presentations, and contributions to the Annual Assessment Report to effectively communicate findings and recommendations

Requirements

  • A bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
  • Active DOE Q clearance or equivalent

Nice to have

  • Graduate degree in Mechanical Engineering or a highly related field where an independent research project was a graduation requirement (e.g., independent project, thesis, or dissertation)
  • Experience with mechanical engineering and product realization in the NNSA complex
  • Strong verbal and written communication skills, ability to work effectively in multidisciplinary teams
  • Proven experience with nuclear weapons (NW) systems, components, safety, use control, surveillance, and/or advanced nuclear weapons technology
  • Familiarity with the Sandia National Laboratories (SNL) NW Product Realization Process and related processes utilized by the National Nuclear Security Administration (NNSA) and the Department of War (DoW)
  • Demonstrated knowledge of complex electro-mechanical, nuclear, and/or mechanical systems, with experience directing physical and computational simulations and modeling to support engineering analysis and decision-making
  • Demonstrated experience working with mechanical systems designed to operate reliably in harsh environments, including exposure to shock, vibration, and thermal extremes
  • Familiarity with Systems Engineering principles and their application to integrated system development and management
  • Demonstrated ability to work effectively on challenging engineering problems within fast-paced, cross-organizational, multidisciplinary teams, supported by strong verbal and written communication skills
  • Experience with project management disciplines and tools, including managing work packages, schedules, and budgets to ensure successful execution

What we offer

  • Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
  • Extraordinary co-workers
  • Some of the best tools, equipment, and research facilities in the world
  • Career advancement and enrichment opportunities
  • Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
  • Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance
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