Antares Nuclear
Senior Mechanical Design Engineer (PCS)
$115K–$190K
Los Angeles · Senior · Full-time · Posted Oct 28, 2026
- Experience
- 5+ years for Senior Engineer, including hands-on CAD, analysis, fabrication support, and test.
- Education
- Bachelor's degree in Mechanical, Aerospace, or a related engineering discipline.
- Visa sponsorship
- Applicant must be a U.S. citizen or national, U.S. lawful permanent resident, refugee, asylee, or eligible to obtain the required authorizations from the U.S. Department of State.
About the job
Design and integrate the Power Conversion System’s mechanical hardware, taking it from concept through fabrication, assembly, and testing.
What you'll do
- Own the PCS mechanical arrangement and pressure budget, including pressure boundaries, piping, joints, and interfaces with major components and reactor and safety systems.
- Design supports, alignment, maintenance access, and high-temperature hardware while accounting for thermal growth, loads, safety, transport, and seismic conditions.
- Support test rig design and instrumentation, and use test data to improve component life and performance.
What they ask for
- Bachelor's degree in Mechanical, Aerospace, or a related engineering discipline.
- Experience designing pressure-retaining or leak-tight fluid hardware and supporting pressure and leak verification.
- Experience releasing production-intent mechanical drawings and models for fabrication, including GD&T and tolerance stack-up.
- Experience with elevated-temperature or high-stress hardware, material selection, and mechanical interfaces between components.
Nice to have
- Industry experience in Nuclear, Aerospace, Automotive, Power Generation, Motorsports, or Oil and Gas.
- Experience with pressure-boundary codes and standards such as ASME B31.3 or ASME BPVC Section VIII.
Pay
$115K – $190K (base salary)
Tools
NX, ANSYS, Femap, ASME B31.3, ASME BPVC Section VIII
Model-written summary · the original posting is authoritative