Staff Mechanical Engineer
Valar Atomics
Torrance, CA · $173k–$211k a year · Posted October 16, 2026
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Where Torrance, CA ranks
Where Torrance, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #3Best cities for manufacturing and industrial pay after cost of living$157k · of 35
- #4Best cities for energy and utilities pay after cost of living$160k · of 18
- #5Best all-round cities for new graduates in the West Coast63 / 100 · of 39
- #8Cities with the most jobs that need no experience in the West Coast1.5% · of 66
- #10Cities with the most jobs that do not need a four-year degree in the West Coast65 jobs · of 47
- #10Cities that post pay most often43% · of 100
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
About Valar Atomics
At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world. Our first pilot plant in Orangeville, Utah will demonstrate how advanced nuclear systems and fuel fabrication can power the future. Joining Valar Atomics means becoming part of a company where autonomy, ownership, and impact exist at every level.
The Team
As part of the Engineering organization, Mechanical Engineering designs and develops the mechanical systems, components, and equipment that power Valar's advanced nuclear technologies. The team ensures designs are robust, manufacturable, and optimized for long-term performance.
The Role
We're seeking a highly skilled Staff Mechanical Design Engineer to join our engineering team and accelerate the frontier of advanced power generation. In this role, you'll be responsible for designing, developing, and validating mechanical systems and components that meet performance, manufacturability, and cost requirements. You'll work closely with cross-functional teams to bring innovative products from concept to production, and serve as a technical leader and mentor for less experienced engineers.
Key Responsibilities
Lead mechanical design efforts for major subsystems, ensuring alignment between performance targets, manufacturability, and cost.
Mentor junior engineers and review mechanical designs to ensure consistency with company standards and engineering rigor.
Develop detailed 3D CAD models, assemblies, and engineering drawings (SolidWorks, Creo, or NX), applying advanced GD&T and tolerance analysis.
Perform structural, thermal, and fluid analyses (FEA and CFD) to validate system performance and reliability.
Oversee prototype fabrication, assembly, and testing, and interpret results to refine designs and improve system performance.
Partner with electrical, manufacturing, and systems engineers to drive integration and design optimization.
Work closely with vendors to manage DFM feedback, manufacturing process selection, and quality control.
Contribute to internal best practices for mechanical design, documentation, and configuration management.
Basic Qualifications
Bachelor's degree in Mechanical Engineering or a related field.
8+ years of experience in mechanical design and product development.
Proven track record of designing and delivering production-ready hardware.
Expertise in CAD (SolidWorks, Creo, NX, or similar) and mechanical drafting standards.
Strong knowledge of materials, manufacturing processes, and mechanical systems.
Expertise in performing or overseeing FEA and CFD analyses.
Excellent communication, technical documentation, and leadership skills.
Preferred Skills and Experience
Master's degree in Mechanical Engineering or a related field.
Experience in high-performance or safety-critical systems (aerospace, energy, or defense).
Deep understanding of DFM/DFA and reliability engineering.
Familiarity with PLM/PDM tools and design control processes.
Hands-on prototyping, testing, and validation experience.
Strong analytical mindset with the ability to lead root cause investigations.
What We Offer
Competitive base salary
Equity ownership in a rapidly growing advanced energy company
Comprehensive medical benefits
Free daily lunch and dinner provided onsite
High-impact startup environment with significant ownership and autonomy
Opportunities for rapid career growth and internal advancement
Direct collaboration with experienced operators, engineers, and industry leaders
The opportunity to help build and scale transformative energy technology from the ground up
Equal Employment Opportunity Statement
Valar Atomics is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other protected status under applicable law.
We are committed to providing a workplace free of discrimination and harassment and will provide reasonable accommodation as required by law.
Applicants must be legally authorized to work in the United States as a U.S. citizen or lawful permanent resident (green card holder).
Salary $173,000 — $211,000 USD