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Senior​/Principal Mechanical Engineer, Computational Thermal Analyst - Onsite

Remote / Online - Candidates ideally in
Overland Park, Johnson County, Kansas, 66213, USA
Listing for: Sandia National Laboratories
Remote/Work from Home position
Listed on 2026-02-12
Job specializations:
  • Engineering
    Mechanical Engineer
Salary/Wage Range or Industry Benchmark: 114000 - 227500 USD Yearly USD 114000.00 227500.00 YEAR
Job Description & How to Apply Below
Position: Senior/ Principal Mechanical Engineer, Computational Thermal Analyst - Onsite

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:

Sandia's Thermal Sciences and Engineering department is seeking an R&D Mechanical Engineer to join a diverse team that uses state‑of‑the‑art analytical and computational simulation techniques, in combination with experimentation and testing, in first‑of‑a‑kind engineering system analysis and thermal science research with a direct impact on national security. We seek individuals with educational backgrounds and professional experience in thermal fluid sciences and computational mechanics including high performance computation environments.

The Thermal Science and Engineering team supports the development of defense, space, and energy systems across the national security mission space at Sandia National Laboratories.

On any given day, you may be called on:
  • Use engineering analysis principles and computational methods to support the design, qualification, and fielding of high consequence engineered systems for national security missions.
  • Engage with design engineering teams to understand system context and analysis needs.
  • Engage with code development teams to derive and implement novel models and capabilities in high performance computational algorithms.
  • Engage with test engineers and technicians to evaluate physical simulation data needed to validate or supplement computational predictions.
  • Work to meet critical schedules in an exciting, mission focused environment.

Travel domestically and, less frequently, internationally as required, to support project efforts. Due to the nature of the work, this candidate must be able to work onsite.

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.
  • Ability to obtain and maintain a DOE Q Security Clearance.
Qualifications We Desire:

The ideal R&D S&E Mechanical Engineer candidate for Sandia National Laboratories will in addition possess the following:

  • 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)
  • Ability to work independently and collaborate well in a multidisciplinary team of designers and test engineers.
  • Outstanding verbal and written skills, including the ability to develop and present briefings that are clear and compelling.
Also, for this posting we are seeking individuals with the following:
  • Ph.D. in Mechanical or a highly related discipline with a thermal and fluid systems emphasis.
  • Experience in high-performance computing environments.
  • Experience applying finite element analysis techniques to thermal/fluid sciences including…
Position Requirements
10+ Years work experience
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