Staff Mechanical Engineer – Nuclear Systems, High Impact

valaratomics; Torrance (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive base salary

Equity ownership

Comprehensive medical benefits

Unlimited PTO

Free daily lunch and dinner onsite

PPE stipend

Job summary

Valar Atomics seeks a Staff Mechanical Engineer for its reactor program. You will own the mechanical design basis for critical systems, guide margins, and drive concepts through build, test, and commissioning on the first unit.

You'll operate with a hands-on authority, ensure design integrity, and collaborate across safety, IC&E, quality, and supply chain to scale production while maintaining rigorous standards and a strong hardware-focused mindset.

Qualifications

• Bachelor's in Mechanical Engineering or related field.
• 8+ years of mechanical engineering on complex hardware.
• Experience as technical owner of a major system.
• Proficiency in CAD and engineering drawing standards.
• Knowledge of stress, thermal, and fluid analyses.

Responsibilities

• Own the mechanical design basis for assigned systems, including margins, interfaces, materials, and codes.
• Lead design reviews and gate decisions from concept to design freeze.
• Support build, test, and commissioning through first operation.

Skills

Mechanical design ownership

Stress & thermal analysis

Design reviews

Vendor management

Mentorship

Root cause analysis

Education

Bachelor's degree in Mechanical Engineering

Master's degree in Mechanical Engineering

Tools

CAD (SolidWorks/Creo/NX)

Job description

Valar Atomics seeks a Staff Mechanical Engineer for its reactor program. You will own the mechanical design basis for critical systems, guide margins, and drive concepts through build, test, and commissioning on the first unit.

You'll operate with a hands-on authority, ensure design integrity, and collaborate across safety, IC&E, quality, and supply chain to scale production while maintaining rigorous standards and a strong hardware-focused mindset.