Senior Reactor Operations Lead for 1MW Microreactors

Radiant; El Segundo (CA); On-site; USD 180,000 - 280,000; Full time

Benefits offered by this job

Stock plan

Medical coverage

One Medical

Vision coverage

Dental coverage

Voluntary benefits

Parental leave

Nuclear Engineering CertificateProgram

Lunch provided

Flexible PTO

Remote workday

Team events

El Segundo HQ

Job summary

Radiant in El Segundo, CA is seeking a Lead Reactor Operations Engineer to direct a team delivering operational insights for Kaleidos reactor development and commissioning. You will qualify as a Kaleidos Reactor Operator and stay hands-on while guiding safe, reliable plant operations.

You will establish conduct of operations, participate in design reviews, and ensure documentation meets DOE/NRC standards. The role requires deep nuclear and systems knowledge, strong leadership, and willingness to

Qualifications

• 6+ years of full-time engineering experience with 2+ years in a leadership role.
• Familiarity with reactor systems interdependencies as an integrated power plant system.
• Licensed as Senior Reactor Operator or Naval equivalent.
• Ability to apply first principles thinking in uncertain or ambiguous situations.
• Excellent written and verbal communication skills.
• Background in highly regulated industries (nuclear, aerospace, aviation, maritime).
• Demonstrated ability to lead and develop technical teams while remaining hands-on.

Responsibilities

• Lead and mentor Reactor Operations Engineers with priorities aligned to milestones.
• Qualify as operator to gain hands-on experience.
• Establish conduct of operations and fleet monitoring for Kaleidos reactors.
• Support development of control algorithms for semi-autonomous/manual operations.
• Evaluate plant response to events, accidents and malfunctions.
• Participate in design reviews from operations perspective.
• Ensure deliverables meet DOE/NRC standards and documentation quality.
• Recruit and develop engineering talent to scale the team.

Skills

Nuclear systems knowledge

Leadership experience

First principles thinking

Excellent communication

Hands-on leadership

Regulated industries experience

Education

Senior Reactor Operator license

Job description

Radiant in El Segundo, CA is seeking a Lead Reactor Operations Engineer to direct a team delivering operational insights for Kaleidos reactor development and commissioning. You will qualify as a Kaleidos Reactor Operator and stay hands-on while guiding safe, reliable plant operations.

You will establish conduct of operations, participate in design reviews, and ensure documentation meets DOE/NRC standards. The role requires deep nuclear and systems knowledge, strong leadership, and willingness to