Senior Mechanical Engineering Analyst

We have multiple openings for Senior Mechanical Engineering Analysts. As a Senior Mechanical Engineering Analyst you will help the analysis team support the engineering design testing and certification of our nations nuclear weapon systems by using Finite Element Analysis (FEA) and some of the worlds largest computers. You will develop computational models using custom in-house codes conduct engineering analysis of full weapon systems and components in thermal quasi-static dynamic and hydrodynamic environments and help guide design and test engineers to develop successful products and tests. You will also perform research and development in advanced simulation capabilities and workflows including advanced constitutive modeling pre- and post-processing Simulation Process and Data Management (SPDM) Verification Validation and Uncertainty Quantification (VVUQ) and workflow automation. These positions are in the Computational Engineering Division (CED within the Engineering Directorate).

Depending on your assignment these positions may offer a hybrid schedule blending in-person and virtual presence. You may have the flexibility to work from home one or more days per week.

You will

• Perform engineering in-depth analysis using finite element models and other techniques in support of stakeholders in design modification optimization testing and certification of the nuclear weapon systems under self-direction and provide alternative solutions to stakeholder challenges.
• Work independently in consultation and/or on teams of analysts code developers engineers and subject matter experts following established procedures standards and verification and validation best practices to solve highly complex not well-defined technical problems.
• Lead development and mentor others in the development of new analysis workflows process standards and procedures.
• Lead and direct large technical projects or teams or influence technical direction and decisions made by stakeholders as a subject matter expert in the field.
• Mentor staff within analysis groups and/or project teams.
• Perform other duties as assigned.

Qualifications :

• This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at the time of hire.
• Masters degree in Mechanical or Civil Engineering or related field or the equivalent combination of education and related experience.
• Expert knowledge and significant experience leading efforts in one or more of the following areas: mechanical behavior of materials structural mechanics failure mechanics dynamics modal response heat transfer hydrodynamics thermo-mechanical response of engineering systems.
• Significant experience developing solutions to complex challenges requiring innovative methods or in-depth analysis of multiple tangible and intangible factors.
• Experience conducting and participating in formal and informal design reviews.
• Significant experience developing and implementing creative solutions to a diverse range of highly complex problems and leading corrective actions where necessary.
• Expert communication facilitation collaboration and organizational skills to effectively present explain and advise senior management external partners and sponsors.
• Ability to travel.

Qualifications We Desire

• PhD in Mechanical Engineering or related field.
• Experience with National Laboratory codes such as ParaDyn Nike3D Dyna3D Diablo Sierra ALE3D CTH or similar commercial FEA codes such as Abaqus Ansys LS-Dyna Nastran.
• Advanced programming experience in Python Java C Fortran Perl and/or MATLAB.
• Significant experience in one or more of the following areas: advanced constitutive models continuum mechanics and material model development energetic materials magneto-hydrodynamics transportation safety analysis uncertainty quantification or statistics verification and validation (V&V) practices nuclear weapon system mechanical design and materials .

Pay Range

$210630 - $267060 Annually

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employees position within the salary range will be based on several factors including but not limited to specific competencies relevant education qualifications certifications experience skills seniority geographic location performance and business or organizational needs.

Additional Information :

#LI-Hybrid

Position Information

This is a Career Indefinite position open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory

• Included in 2026 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
• Our values - visit  Clearance

  This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at time of hire. 

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  Remote Work :

  No

  
  

  Employment Type :

  Full-time