Senior Mechanical Engineer - Nuclear Systems (Onsite)

Radiant; El Segundo (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Stock plan

Full health benefits

Onsite lunch

Parental leave

Nuclear Engineering CertificateProgram

Flexible PTO

Team events

Job summary

Radiant in El Segundo, CA is seeking a Senior Mechanical Engineer to design critical structures for Kaleidos, a 1 MW transportable nuclear reactor. You will perform trade studies, material selection, and detailed thermomechanical analyses to ensure safety and manufacturability.

You will own subassembly design, BOMs, supplier development, and testing, collaborating with interdisciplinary teams to meet tight deadlines and extreme environment requirements.

Qualifications

• Bachelor’s degree in Mechanical, Aeronautical, Civil or Structural Engineering.
• 6+ years of experience designing structures.
• 4+ years of experience performing stress analysis using both hand calculations and finite element tools (Abaqus, Ansys, FEMAP, or similar).

Responsibilities

• Own critical structures such as transportable shielding systems, container systems, and high temperature graphite/metallic systems.
• Conduct trade studies and develop designs to meet program requirements.
• Perform thermomechanical and dynamic analysis to verify structural integrity.
• Develop and execute manufacturing/assembly instructions and test plans; create and manage BOMs.
• Find and develop suppliers for components.
• Own subassembly design, manufacturing, and test schedules.
• Own risk analysis (FMEA) for subsystems.
• Communicate requirements and provide feedback across engineering teams.

Skills

Structural design

Stress analysis

Hand calculations

Finite element analysis

Interdisciplinary teamwork

Documentation & communication

Text-based software tools

Education

Bachelor's degree in Mechanical, Aeronautical, Civil or Structural Engineering

Tools

Abaqus

Ansys

FEMAP

NX CAD

Job description

Radiant in El Segundo, CA is seeking a Senior Mechanical Engineer to design critical structures for Kaleidos, a 1 MW transportable nuclear reactor. You will perform trade studies, material selection, and detailed thermomechanical analyses to ensure safety and manufacturability.

You will own subassembly design, BOMs, supplier development, and testing, collaborating with interdisciplinary teams to meet tight deadlines and extreme environment requirements.