Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.
Senior Turbomachinery Engineer
Radiant is seeking a highly motivated Senior Turbomachinery Engineer to own the high-pressure, high-temperature helium circulator through immediate testing and integration for the Kaleidos Demonstration Unit and long-term design and development for Kaleidos Production. You will be responsible for turbomachinery trade studies, component selection, mechanical design, rotodynamic analysis, hardware assembly, system testing, and integration. You will develop critical hardware at the center of the reactor primary loop while considering performance, reliability, manufacturability, mass, and cost.
The ideal candidate is experienced in building early concept turbomachinery components through production and is excited about our vision to build Earth’s first mass-produced nuclear reactors.
Responsibilities & Duties:
- Design, build, and test helium circulator turbomachinery for primary loop system.
- Own end-to-end engineering of turbomachinery components, while managing turbomachinery component suppliers and enabling on-time hardware delivery
- Perform complex thermal and fluids analysis to drive design decisions, verify system performance, and ensure structural integrity using first-principle hand calculations and finite element tools.
- Perform trade studies to optimize system and meet program requirements.
- Develop and execute manufacturing/assembly instructions and test plans.
- Create and manage a Bill-Of-Materials (BOM).
- Own subassembly design, manufacturing, and test schedules.
- Own risk analysis (FMEA) for subsystems.
- Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.
Required Qualifications & Skills
- B.S. in Mechanical or Aerospace Engineering from accredited university.
- 5+ years of engineering experience in turbomachinery design, build, and operation.
Desired Qualifications & Skills
- Strong knowledge of turbomachinery design and build principles.
- Demonstrated experience in owning end-to-end hardware development cycle, from concept, part design, manufacturing, through build and testing.
- Proficiency in fluids modeling of compressible and incompressible flow.
- Experience with turbomachinery manufacturing and design for manufacturability
- Takes extreme ownership of work and a high degree of responsibility.
- Excellent communication across multidisciplinary teams.
- Prior nuclear experience in not required for this role.
Additional Requirements:
- Must be willing to work extended hours and weekends as necessary to achieve company goals.
- Must work 100% onsite at El Segundo HQ.
Employee Benefits for Eligible Employees:
- Stock: Substantial incentive stock plan for all full time, salaried employees.
- Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
- One Medical: Sponsored memberships for employees and their dependents.
- Vision: 100% top tier plan coverage + 50% for dependents.
- Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
- Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.
- Free snacks and drinks onsite.
- Flexible PTO policy.
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.
Life at Radiant
Radiant is a team of innovators and communicators creating digital products that bring out the best in people, families and communities. At Radiant we believe in human light - the raw potential within each of us to do extraordinary good.
Thrive Here & What We ValueFlexible PTO policy | Free snacks and drinks onsite | Employee benefits for eligible employees (stock, medical, vision, dental, voluntary life, accident, hospital, critical illness, commuter, FSA) | Equal opportunity employer | Unable to provide visa sponsorship at this time.</s> | 1. Substantial incentive stock plan for all full time, salaried employees. | 2. 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. | 3. One Medical: Sponsored memberships for employees and their dependents. | 4. Vision: 100% top tier plan coverage + 50% for dependents. | 5. Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits. | 6. Free snacks and drinks onsite. | 7. Flexible PTO policy.</s> | 1. Flexible PTO policy | 2. Free snacks and drinks onsite | 3. Employee Benefits for Eligible Employees: Stock, Medical, Vision, Dental, Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</s> | Free snacks and drinks onsite</s> | 4. Equal Opportunity Employer | 5. Access to technology that is subject to U.S. export controls.</s> | 3. Employee benefits for eligible employees include stock, medical, vision, dental, voluntary life, accident, hospital, critical illness, commuter, and FSA plans</s> | 2. One Medical: Sponsored memberships for employees and their dependents. | 3. Flexible PTO policy. | 4. Free snacks and drinks onsite. | 5. 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. | 6. Unfortunately, we are unable to provide visa sponsorship at this time.</s> | Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. | Climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. | Plan to test development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. | Goal is to bring one of the world's first factory-constructed microreactors to market. | Microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.</s> | Medical benefits for employees and dependents | Vision benefits for employees and dependents | Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits</s> | Vision: 100% top tier plan coverage + 50% for dependents</s> | 1. Flexible PTO policy. | 2. Free snacks and drinks onsite. | 4. 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. | 5. 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.</s> | 4. 100% top tier plan coverage + 50% for dependents for medical, dental, and vision insurance | 5. Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</s> | 3. Employee benefits for eligible employees, including stock incentives, medical coverage, dental coverage, vision coverage, voluntary life, accident, hospital, critical illness, commuter and FSA options</s> | 3. Employee Benefits for Eligible Employees (Stock, Medical, Vision, Dental) | 5. No Visa Sponsorship at This Time</s> | Radiant is 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. | Radiant offers employee benefits such as stock incentives, medical and dental coverage, vision coverage, voluntary life, accident, hospital, critical illness, commuter and FSA plans. | Radiant provides free snacks and drinks onsite and has a flexible PTO policy.</s> | 4. Equal Opportunity Employer</s> | Employee benefits for eligible employees: stock, medical, vision, dental, voluntary life, accident, hospital, critical illness, commuter, and FSA are offered as employee contributed benefits.</s> | 3. 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. | 4. One Medical: Sponsored memberships for employees and their dependents. | 5. Vision: 100% top tier plan coverage + 50% for dependents.</s> | 5. Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. | 6. Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits. | 7. Free snacks and drinks onsite. | 8. Flexible PTO policy. | 9. 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. | 10. 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.</s> | 1. Substantial incentive stock plan for all fulltime salaried employees | 4. Flexible PTO policy.</s> | Free snacks and drinks onsite.</s> | 1. Radiant is an ElSegundo, CA-based clean energy startup building a nuclear microreactor. | 2. Climatefriendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. | 3. Plan to test development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. | 4. Goal is to bring one of the world's first factoryconstructed microreactors to market. | 5. Microreactor can bring power to remote parts of the world and provide backup power for lifesaving applications in hospitals or disaster-relief scenarios.</s> | Employee benefits for eligible employees, including stock incentives, medical coverage, dental coverage, vision coverage, voluntary life, accident, hospital, critical illness, commuter, and FSA options.</s>
