Staff Nuclear Fluid Systems Engineer — Onsite at El Segundo

Radiant; El Segundo (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Stock plan

Medical coverage

One Medical membership

Vision coverage

Dental coverage

Voluntary benefits

Parental leave

Education program

Catered lunch

Flexible PTO

Team events

HQ near Pacific Ocean

Job summary

Radiant, an El Segundo, CA-based company pioneering transportable nuclear microreactors, seeks a Staff Mechanical Engineer to own Kaleidos fluid systems from design through production. You will lead fluid architecture, perform thermal and hydraulics analyses, and drive supplier development and BOM management.

The role requires 8+ years in fluid systems, strong heat exchanger expertise, and hands-on design-to-build experience.

Qualifications

• Bachelor39s degree in Mechanical, Materials, Aeronautical, Civil or Structural Engineering.
• Experience with fluid system architecture design.
• 8+ years designing, building, testing fluid systems.
• Proficient in fluid dynamics and thermodynamics.
• Proficient in heat exchanger design and analysis methods.

Responsibilities

• Own end-to-end engineering of fluid systems and components, including compressors, valves, heat exchangers.
• Perform thermal and fluids analysis to drive design decisions and verify performance.
• Develop manufacturing/assembly instructions and test plans.
• Create and manage a BOM.
• Find and develop suppliers for components.
• Own subassembly design, manufacturing, and test schedules.
• Own risk analysis (FMEA) for subsystems.
• Collaborate across multidisciplinary teams with clear communication.

Skills

Fluid system design

Thermal hydraulics

Heat exchanger design

Piping design

FEA / hand calculations

FMEA

Vendor selection

BOM management

Cross-functional collaboration

Education

Bachelor39s degree in Mechanical/Materials/Aeronautical/Civil or Structural Engineering

Tools

MATLAB

Python

Job description

Radiant, an El Segundo, CA-based company pioneering transportable nuclear microreactors, seeks a Staff Mechanical Engineer to own Kaleidos fluid systems from design through production. You will lead fluid architecture, perform thermal and hydraulics analyses, and drive supplier development and BOM management.

The role requires 8+ years in fluid systems, strong heat exchanger expertise, and hands-on design-to-build experience.