Quality Systems Engineer

Number of employees

275

El Segundo, California, United States, USA

Posted on: 2026-01-20

Category: renewables

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Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Radiant is building the world’s first mass-produced portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1 MW failsafe microreactor that can be transported anywhere power is needed. Founded in 2020, Radiant plans to test its first reactor in 2026, with initial customer deployments beginning in 2028.

Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. Portable nuclear power with rapid deploy capability can replace similar-sized diesel generators, and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development utilizes modern software engineering to rapidly achieve safe, factory-built microreactors that leverage existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor next year at the Idaho National Laboratory, with initial customer deliveries beginning in 2028.

Quality Systems Engineer

Radiant is seeking a driven, organized Quality Systems Engineer to manage the integration of hardware systems with customer requirements and regulation. This role is critical to bringing the world’s first portable nuclear microreactor to commercialization in a timely manner. You will work directly with all engineering disciplines to influence the full hardware lifecycle by providing critical feedback in design reviews, build reviews, and test campaigns. This is an exciting opportunity for reliability engineers who enjoy both technical work and operational execution. You will have a direct impact on bringing the safest microreactor to market the fastest.

Responsibilities: 

  • Establish and implement practices across the company to ensure that hardware is designed, built, and operated with the highest level of engineering rigor.
  • Perform independent assessments of subsystem and system designs to develop understanding of vulnerabilities and associated risk.
  • Drive architectural decision making across engineering functions to improve reliability of both the design and build of hardware.
  • Develop processes and tools to assess manufacturing issues, manage technical risk, and evaluate changes to reactor configuration.
  • Oversee execution by technical teams including design reviews and regulatory and quality documentation; organize data inputs into technical papers and deliverable reports.

Required Skills and Qualifications:  

  • Bachelor’s degree in engineering discipline.
  • 2+ years of full-time experience with engineering problem solving in design, analysis, or test of systems.
  • Experience with complex hardware and processes related to manufacturing, integration, testing or operations.
  • Applied understanding of requirement derivation, negotiation and verification or experience with the product design process especially as it relates to defining systems, interfaces and specifications.

Desired Skills and Qualifications:  

  • Experience with Mission Assurance, Quality Assurance, Reliability Analysis, or Systems Engineering.
  • Full product life cycle experience with hardware that has seen production. 
  • Ability to apply fundamental engineering principles. 
  • Interpersonal skills to interact with both internal and external groups to overcome associated constraints.
  • Analytical and problem-solving skills with proven ability to rapidly resolve interdisciplinary issues.

Total Compensation and Benefits

Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive benefits. Total compensation and level are determined through a holistic evaluation of your interview performance, experience, education, and qualifications. 

Benefits and Perks for Eligible Employees:

  • Stock: Substantial incentive stock plan for all full-time employees.
  • Medical: 100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
  • One Medical: Sponsored memberships for eligible employees and their dependents.
  • Vision: 100% premium coverage for top tier plan + 50% for dependents.
  • Dental: 100% premium coverage for top tier plan (including orthodontia) + 50% for dependents.
  • Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
  • 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
  • Daily catered lunch. Free snacks and drinks.
  • Flexible PTO policy. Remote workday allocation.
  • Company and team-bonding events, happy hours and in-person camaraderie.
  • Beautiful El Segundo headquarters close to the Pacific Ocean.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Unfortunately, we are unable to provide visa sponsorship at this time.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

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