Antares Nuclear
Senior Mechanical Design Engineer - Reactivity Controls
$115K–$185K
Los Angeles · Senior · Full-time · Posted Aug 27, 2026
- Experience
- 5+ years required; preferred qualification states 7+ years.
- Education
- Bachelor's degree in engineering; Master's preferred.
- Visa sponsorship
- Applicant must be a U.S. citizen or national, U.S. lawful permanent resident, refugee, asylee, or eligible to obtain required U.S. Department of State authorizations.
About the job
Leads the design, development, testing, and validation of mechanical reactor reactivity-control systems and their interfaces with electrical and software subsystems.
What you'll do
- Design, build, and test reactor control mechanisms, hardware, and assemblies, including custom actuation solutions.
- Set design criteria, requirements, system architecture, and verification/validation plans; collaborate across engineering disciplines.
- Assess manufacturability and tradeoffs, conduct mechanism studies, and document and present recommendations.
What they ask for
- Bachelor's degree in engineering.
- 5+ years of full-cycle design engineering experience, including hands-on CAD, analysis, build, and test.
- Experience with kinematic synthesis, pneumatic/hydraulic actuation, mechatronics, and instrumentation.
- Experience with FMEA, including structure strength, stability, and fatigue failure modes.
Nice to have
- Master's degree in engineering; 7+ years of full-cycle design engineering experience.
- Experience in Nuclear, Aerospace, or Robotics; NX, ANSYS or Femap, Python, or MATLAB.
Pay
$145,000 - $185,000 (base salary); $115K – $185K (unspecified compensation)
Tools
CAD, NX, ANSYS, Femap, Python, MATLAB
Model-written summary · the original posting is authoritative