Senior Mechanical Engineer – Turbomachinery Rotordynamics

Radiant • El Segundo, CA

85d

About The Position

Radiant is seeking a highly motivated engineer to join the team responsible for the power generation and primary cooling turbomachinery of our Kaleidos product. This role involves performing the rotordynamic analysis and bearing selection of high-speed rotating machinery including compressors, turbines, and pumps for high-temperature applications. The ideal candidate will have a strong background in rotordynamics and bearing selection, along with hands-on experience testing real hardware.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering or a related field.
• 5+ years of experience in the design and analysis of turbomachinery, rotating equipment, or mechanisms.
• Strong understanding of rotordynamic principles and tools (e.g., XLrotor, Dyrobes, or equivalent).
• Excellent problem-solving, technical communication, and organizational skills.

Nice To Haves

• Prior experience with power generation applications.
• Knowledge of bearing selection for high-temperature, high-speed applications.
• Hands-on experience with turbomachinery testing and instrumentation.
• Familiarity with relevant industry standards (API, ASME, ISO).
• Prior nuclear experience is not required for this role.

Responsibilities

• Design, build, and test turbomachinery for Radiant’s power generation systems.
• Perform dynamic analysis of rotor-bearing systems to evaluate vibrational behavior, stability, and resonance characteristics.
• Conduct critical speed analysis, Campbell diagram analysis, and stability assessments to optimize rotor system design for minimal vibration and resonance.
• Analyze rotor response under transient operating conditions, including startup, shutdown, and off-design operations.
• Select appropriate bearing types (e.g., rolling element, fluid film, magnetic) based on operating conditions and performance requirements.
• Evaluate bearing loads, life, and thermal performance.
• Prepare technical reports, design documentation, and presentation materials.
• Support the build and testing of prototype, first article, and production hardware.

Benefits

• Substantial incentive stock plan for all full-time employees.
• 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• Sponsored memberships for employees and their dependents.
• 100% top tier plan coverage + 50% for dependents.
• 100% top tier plan coverage, orthodontia extra, 50% for dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 101-250 employees