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NNSS Mechanical Engineer (Nevada - Las Vegas) - Security Clearance Required

Lawrence Livermore National Laboratory
Las Vegas, NV Full Time
POSTED ON 1/16/2025
AVAILABLE BEFORE 4/9/2025

Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is essential to innovation and creativity for continued success of the Laboratory’s mission.

Pay Range

79,776  - $148,608  Annually for the SES.1 level

95,808  - $178,392  Annually for the SES.2 level

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 employee’s 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.

Job Description

We have an opening for a Mechanical Engineer to participate in new and ongoing projects at the Nevada National Security Site (NNSS). You will contribute to the design, deployment, fabrication and assembly of various nuclear weapon components; surveillance of nuclear stockpile components; and engineering testing for evaluation and maintenance of the enduring and future nuclear weapon stockpile at several facilities in the United States, primarily supporting the work at the Device Assembly Facility (DAF) in Nevada. You will interface with colleagues at other National Laboratories and Production Agencies, National Nuclear Security Administration (NNSA), and Department of Defense (DoD) and their contractors. This position is in the Defense Technologies Engineering Division (DTED), within the Engineering Directorate and primary job responsibility will occur at the NNSS. DTED provides support to Strategic Deterrence (SD) Programs.

This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.

In this role you will

  • Work under general direction to derive engineering requirements, develop conceptual designs, and perform supporting analyses of mechanical systems, test prototypes, and associated diagnostics.
  • Collaborative with team members to provide input on deliverables and to regularly communicate the status and projected delivery date to ensure quality results are provided in accordance with established deadlines. Participate in oversight of the detail design process, component part fabrication, and unit assembly.
  • Prepare supporting safety and engineering documentation and participate in engineering design reviews.
  • Participate in engineering testing operations, analyze results, and write reports.
  • Generate detailed plans, schedules, and budgets for project activities.
  • Work independently as well as a part of a multidisciplinary team and contribute to the completion of project / program milestones.
  • Solve problems of limited complexity using standard techniques and methodologies, while also adhering to defined practices and procedures.
  • Perform other duties as assigned.

Additional job responsibilities, at the SES.2 level

  • Provide comprehensive engineering knowledge to resolve technical and programmatic issues by applying the creative use of established and / or innovative methods.
  • Work under limited direction using independent judgment  to perform technical tasks to provide solutions for a diverse range of moderately complex issues.
  • Exercise independent judgment in determining methods, techniques, and evaluation criteria to obtain results based on analysis of multiple, largely identifiable factors.
  • Provide input and contribute to the fulfillment of technical projects and organizational objectives, recommending improvements / processes as appropriate.
  • May provide guidance and / or mentoring to less-experienced personnel.
  • Qualifications

  • Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. Citizenship.
  • Bachelor's degree in Mechanical Engineering or related field, or the equivalent combination of education and related experience.
  • Fundamental knowledge of two or more of the following : engineering hardware design, systems engineering, manufacturing techniques, testing processes, FEA structural analysis.
  • Working knowledge of and / or experience with standard design principles, material properties, and manufacturing methods.
  • Ability to work effectively in a multidisciplinary team environment.
  • Experience using standard project management practices.
  • Desire to work on National Security projects related to nuclear weapons and flexibility to work in different technical areas.
  • Sufficient verbal and written communication skills to collaborate effectively in a team environment and present and explain technical information.
  • Ability to travel up to 50% time between Las Vegas, NV and Livermore, CA, or other DOE complex sites, as needed.
  • Ability to secure and maintain certification in the Human Reliability Program (HRP), which includes polygraph examination, physical and psychological assessment, and random drug and alcohol testing.
  • Additional qualifications at the SES.2 level

  • Comprehensive knowledge of and broad experience with engineering hardware design, fabrication, or testing processes.
  • Previous experience working effectively as a member of a multidisciplinary team focused on project planning, scheduling, and providing professional service estimates.
  • Demonstrated ability to simultaneously coordinate and manage multiple concurrent projects with a range of priorities, ensuring that scheduled tasks and responsibilities are completed accurately and as targeted, and that deliverable deadlines are met.
  • Proficient verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical information.
  • Qualifications We Desire

  • Knowledge of materials, equipment, or technologies associated with production of mechanical hardware, electronics, additive manufacturing, and QA / QC documentation skills.
  • Knowledge and experience in nuclear weapons program stockpile systems, components, classified materials, experimental data, and related diagnostic and testing equipment.
  • Knowledge of nuclear facility operation, including a basic understanding of safety bases documentation.
  • Experience working in an environment with stringent safety and security practices.
  • Additional Information

    Position Information

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

    Why Lawrence Livermore National Laboratory?

  • Included in 2024 Best Places to Work by Glassdoor!
  • Flexible  Benefits Package
  • 401(k)
  • Relocation Assistance
  • Education Reimbursement Program
  • Flexible schedules (
  • depending on project needs)
  • Inclusion, Diversity, Equity and Accountability (IDEA) - visit  https : / / www.llnl.gov / diversity
  • Our core beliefs - visit  https : / / www.llnl.gov / diversity / our-values
  • Employee engagement - visit  https : / / www.llnl.gov / diversity / employee-engagement
  • Security Clearance

    This position requires a Department of Energy (DOE) Q-level clearance.  If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing.  Q-level clearance requires U.S. citizenship.

    Pre-Employment Drug Test

    External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

    Wireless and Medical Devices

    Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and / or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and / or laboratory mobile device in your possession.  This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth / wireless enabled devices.

    If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas.  Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit / Buffer Space within buildings.

    Pre-Placement Medical Exam

    A job related pre-placement medical examination may be required.

    How to identify fake job advertisements

    Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond.

    To learn more about recruitment scams :   https : / / www.llnl.gov / sites / www / files / 2023-05 / LLNL-Job-Fraud-Statement-Updated-4.26.23.pdf

    Equal Employment Opportunity

    We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

    We invite you to review the Equal Employment Opportunity posters which include EEO is the Law and Pay Transparency Nondiscrimination Provision .

    Reasonable Accommodation

    Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory.  If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request.

    California Privacy Notice

    The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here .

    Salary : $79,776 - $148,608

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