Nuclear Facility Senior Mechanical Project Engineer

Benefits

Parental leave

Not verified

Non-birth-parent leave

Not verified

Family-building benefits

• Fertility benefits: Not verified
• Adoption assistance: Not verified
• Surrogacy assistance: Not verified

Mental health support

Not verified

Relocation assistance

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Childcare support

Not verified

Learning budget

Offered From the posting source checked Jun 20, 2026

Verification

Not verified

Salary

$176K-$267K From the posting source checked Jun 20, 2026

401(k) match

Not verified

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Market context

U.S. role benchmark (BLS OEWS)

$116,543 U.S. median for this role

Projected growth (BLS Employment Projections)

+9.8% - Much faster than average

90% above the BLS role benchmark for software engineering aggregate.

Matched to SOC 15-1252 - Software Engineering aggregate by role bucket.

Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.

Role

Role function

Engineering From the posting source checked Jun 20, 2026

Seniority

Senior From the posting source checked Jun 20, 2026

Schedule

Shift type

Not verified

Weekend work

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Application

Cover letter

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Assessment

Not verified

Deadline

Not stated

Where they hire

State eligibility is not yet verified.

About this role

Nuclear Facility Senior Mechanical Project Engineer Livermore, CA, United States Company Description: Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact. Job Description: We are seeking a Nuclear Facility Senior Mechanical Project Engineer to provide engineering design solutions for new construction, upgrades to facility mechanical systems (i.e., ventilation, fire suppression, compressed gas, chillers, boilers), and modifications to conventional office and laboratory facilities. You will apply advanced technical knowledge in mechanical engineering to develop conceptual ideas into workable and cost-effective solutions that maintain facilities supporting research and investigations of nuclear materials. You will participate in new and ongoing projects with technical responsibilities including design, development, fabrication, integration, testing and fielding of facility projects and upgrades. You will apply advanced technical knowledge in mechanical engineering to develop conceptual ideas into workable and cost-effective solutions that maintain facilities, supporting research and investigations of nuclear materials. This position will report programmatically to the Facility Projects Manager in the Superblock. This position is in the Defense Technologies Engineering Division (DTED) within the Engineering Directorate. This position requires full-time on-site presence due

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