Nuclear Sensor Engineer for Harsh-Env Detectors

Radiant Industries; El Segundo (CA); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Stock plan

Medical benefits

One Medical

Vision coverage

Dental coverage

Parental leave

Lunch provided

Flexible PTO

Team events

El Segundo HQ

Job summary

Radiant is seeking a Nuclear Engineer to own sensor and instrumentation solutions for the Kaleidos microreactor. You will lead design, modeling, and qualification for sensors used in reactor physics, shielding and safety analyses, working with a collaborative team in a fast-paced startup.

The ideal candidate has 1–2+ years of nuclear engineering experience, familiarity with radiation transport codes, and programming skills in Python/C++/C#.

Qualifications

• Bachelor's degree in nuclear engineering from an accredited institution.
• 1–2+ years of nuclear engineering experience with exposure to radiation detection or instrumentation.
• Experience with radiation transport methods (MCNP/OpenMC/Serpent).
• Proficiency in Python, C++, C#, FORTRAN or similar.
• Basic knowledge of thermal hydraulics.
• Strong organizational, written, and oral communication skills.
• Experience in an engineering organization with high-quality work.

Responsibilities

• Own sensor and instrumentation design and analysis for Kaleidos reactor systems.
• Support detector modeling and verification against performance requirements.
• Evaluate sensor survivability in high-temperature, high-radiation environments.
• Collaborate with DAQ engineers to integrate sensor outputs into monitoring and control systems.
• Support V&V of instrumentation per requirements and regulations.
• Communicate requirements and feedback clearly across teams.
• Perform other nuclear instrumentation duties as assigned.

Skills

Nuclear engineering

Python

C++

C#

FORTRAN

Radiation detection

Sensor design

Thermal hydraulics

Communication

Education

Bachelor's degree in nuclear engineering

Tools

MCNP/OpenMC/Serpent

Attila4MC

ADVANTG

CAD (NX/SolidWorks/SpaceClaim)

Job description

Radiant is seeking a Nuclear Engineer to own sensor and instrumentation solutions for the Kaleidos microreactor. You will lead design, modeling, and qualification for sensors used in reactor physics, shielding and safety analyses, working with a collaborative team in a fast-paced startup.

The ideal candidate has 1–2+ years of nuclear engineering experience, familiarity with radiation transport codes, and programming skills in Python/C++/C#.