Cleared Senior/Principal R&D Mechanical Engineer Threat Assessments III, Onsite
Lenexa, Johnson County, Kansas, 66215, USA
Listed on 2026-02-12
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Engineering
Mechanical Engineer, Systems Engineer
About Sandia:
Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting‑edge work in a broad array of areas. Some of the main reasons we love our jobs:
- 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*
World-changing technologies. Life-changing careers. Learn more about Sandia at: http://(Use the "Apply for this Job" box below)..gov
* These benefits vary by job classification.
What Your Job Will Be Like:We are seeking an R&D Mechanical Engineer to perform all‑source technical analysis of the evolving nuclear weapon threats against the United States. In this role, you will interact with the national security community to develop a deep understanding of foreign state and non‑state technical capabilities related to nuclear weapons and other related technologies, and develop technical assessments, using the broad technology base within Sandia.
Key focus areas include: weaponization, hardware assessment, logistics and supply chain analysis, modeling and simulation, and testing.
As the largest national laboratory and one of the three nuclear weapons labs, Sandia plays a primary role in supporting IC efforts to assess the capabilities of foreign nuclear systems. Participating in fast‑paced, technical support to senior government officials is only one aspect of our work in the Proliferation Assessments Program of 5900.
On any given day, you may be called on to:- Collaborate with colleagues to understand and assess all‑source intelligence.
- Produce assessments used to advise senior government officials on emerging and persistent national security issues.
- Partner with subject matter experts across Sandia's broad technical capabilities to address specific or urgent needs.
- Collaborate with technical team members to define future analysis opportunities.
- Serve as a technical/programmatic interface for multiple levels of customers from various government organizations.
- Inform Sandia's decision makers and contributors with threat assessment briefings and trainings.
Due to the nature of the work, the selected applicant must be able to work onsite.
Qualified candidates will be asked to provide a writing sample (500 words or more) prior to any scheduled interviews.
The Sandia job code title for this position is R&D Mechanical Engineer, however candidates may have background in many disciplines including Aeronautical/Astronautical Engineering, Applied Engineering, Chemical Engineering, Civil Engineering, Electromechanical Engineering, General Engineering, Fluid Dynamics, Industrial Engineering, Materials Engineering, Materials Science, Mechanics, Optics, Physics, Structural Engineering
* Candidates applying on this requisition may be interviewed and/or hired into one of the departments in 5920 , 5923 or 5924) - depending on their strengths, experience and program needs.
Salary Range:$114,000 - $227,500
* Salary range is estimated, and actual salary will be determined after consideration of the selected candidate's experience and qualifications, and application of any approved geographic salary differential.
Qualifications We Require:- 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 or DOD TS clearance
- Must be able to obtain and maintain a SCI security clearance, which may…
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