Test Engineer - Nuclear Systems (Onsite, El Segundo)

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

Benefits offered by this job

Stock incentive plan

Full medical/dental/vision

8 weeks parental leave

Onsite cafeteria

Educational program scholarships

Remote workday option

Job summary

Radiant in El Segundo, CA, is seeking a Test Engineer to drive test operations for our nuclear microreactor technology. You will translate complex hardware and software designs into executable test procedures for development, qualification, and acceptance testing.

You will work with a multidisciplinary team, contribute to test planning, risk mitigation, and hardware performance analysis, and gain hands-on experience as a test conductor and test director in a fast-paced, highly regulated

Qualifications

• 2+ years of full-time professional experience in engineering problem-solving, including system design, analysis, or testing.
• Bachelor’s degree from an accredited institution in mechanical, manufacturing, or other related engineering discipline.
• Ability to apply first principles thinking to solve problems and make decisions in uncertain or ambiguous situations.
• Background in highly regulated industries (e.g., nuclear, aerospace, aviation, maritime).
• Demonstrated ability to lead projects and work independently.
• Strong technical fundamentals in fluids and thermodynamics.
• Strong written and verbal communication skills.
• Flexible and adaptable mindset - self-driven with the ability to seek out requirements with minimal direction.

Responsibilities

• Perform testing as a Test Conductor/Test Director to gain firsthand experience, ensuring procedures align with real-world execution.
• Partner with design engineers to develop innovative test methods for complex mechanisms and structures.
• Support testing and iterative improvements of fluid, electrical, and structural hardware of the Kaleidos reactor through development, qualification, and acceptance testing.
• Identify and develop appropriate suppliers for component sourcing and fabrication.
• Drive initiatives for continuous improvement in test processes and data delivery quality.
• Support one-off test campaigns in a fast paced, minimum-requirements environment to drive hardware risk reduction.
• Ensure compliance with DOE and NRC standards, maintaining strict formatting, clarity, and usability in procedural documentation.

Skills

Engineering problem-solving

Systems design

Testing

Project leadership

Strong communication

Self-driven

Fluids/thermodynamics

Education

Bachelor's degree in mechanical engineering

Tools

Beckhoff

Python

MATLAB

NX CAD

Teamcenter

P&ID reading

Job description

Radiant in El Segundo, CA, is seeking a Test Engineer to drive test operations for our nuclear microreactor technology. You will translate complex hardware and software designs into executable test procedures for development, qualification, and acceptance testing.

You will work with a multidisciplinary team, contribute to test planning, risk mitigation, and hardware performance analysis, and gain hands-on experience as a test conductor and test director in a fast-paced, highly regulated