El Segundo, California, United States · On-site
$95k–$105k/yr
About Radiant 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, fail-safe microreactor that can b…
Skills: Electric Motor Design, CAD, NX, 3D Modeling, 2D Fabrication Drawings
El Segundo, California, United States · On-site
$117k–$227k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Systems Engineering, Requirements Verification And Validation, Spacecraft Subsystems, Integration And Test, Configuration Management
El Segundo, California, United States · On-site
$151k–$227k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Systems Engineering, OPIR Space Vehicle Systems, Ground Systems, Launch Vehicle Interfaces, Interface Control Documents
El Segundo, California, United States · On-site
$151k–$227k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Navigation Warfare (NAVWAR), Position Navigation and Timing (PNT), Systems Engineering, Mission Architecture, Space Sensing Systems
El Segundo, California, United States · On-site
$100k–$176k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Modeling, Simulation, Analysis, Systems Engineering, Data-Fusion Algorithms
El Segundo, California, United States · On-site
$130k–$175k/yr
CX2 is a next-generation defense technology company founded to deliver spectrum dominance for the United States and our allies. CX2’s AI-enabled hardware and software platforms detect, disrupt and defend the electromagne…
Skills: Avionics Integration, Linux Command Line, IP Networking, Electrical Troubleshooting, System Verification
El Segundo, California, United States · On-site
$146k–$215k/yr
Product Owner - Manufacturing Harness - Millennium Space Systems Company: Millennium Space Systems Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company fo…
Skills: Project Management, Wire Harness Product Lifecycle, Budget Management, Earned Value Management, Jira
El Segundo, California, United States · On-site
$100k–$150k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Electromechanical Control Systems, Control System Hardware, Algorithms, Laboratory Experimentation, Test Strategy Development
El Segundo, California, United States · On-site
$83k–$155k/yr
RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportunit…
Skills: Materials Science, Composite Lamination, Adhesives and Epoxies, Non Destructive Inspection, Materials Testing
El Segundo, California, United States · On-site
$105k–$135k/yr
Amca is building America’s new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to pr…
Skills: Electrical Design, PCBA Layout, Electrical Analysis, Component Selection, Prototyping
El Segundo, California, United States · On-site
$105k–$135k/yr
Amca is building America’s new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to pr…
Skills: Electrical Design, Python, C#, C++, Java
El Segundo, California, United States · On-site
$100k–$130k/yr
Amca is building America’s new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to pr…
Skills: Design For Manufacturability, GD&T, Siemens NX, Python, MATLAB
El Segundo, California, United States · On-site
$100k–$130k/yr
Amca is building America’s new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to pr…
Skills: Mechanical Design, Fluid Dynamics, Thermodynamics, Solid Mechanics, GD&T
El Segundo, California, United States · On-site
$100k–$130k/yr
Amca is building America’s new industrial base. Since the 1990s, our ability to build new aviation and military systems and maintain the ones we already have has eroded. Today, the gap between what the nation needs to pr…
Skills: Test Methodology, GD&T, Project Management, Fluid Systems Testing, Electrical Systems Testing
El Segundo, California, United States · On-site
About Varda Low Earth orbit is open for business. Varda is accelerating the development of commercial space infrastructure, from in-orbit pharmaceutical processing to reliable and economical reentry capsules. Varda’s W-S…
Skills: C++, Embedded Systems, Computer Architecture, Operating Systems, Linux
El Segundo, California, United States · On-site
$193k–$290k/yr
RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportunit…
Skills: Project Management, Program Management, Risk Management, Change Management, Cost Management
El Segundo, California, United States · On-site
$79k–$134k/yr
ATLO (Assembly, Test, & Launch Operations) Engineer - Millennium Space Systems Company: Millennium Space Systems Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satell…
Skills: Electrical Verification, Mechanical Integration, Test Script Generation, V&V Process, Environmental Testing
El Segundo, California, United States · On-site
$87k–$130k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Java, Python, Spring Framework, RESTful Services, Cloud Computing
El Segundo, California, United States · On-site
$155k–$170k/yr
Company Overview ImmunityBio, Inc. (NASDAQ: IBRX) is a commercial-stage biotechnology company developing cell and immunotherapy products that are designed to help strengthen each patient’s natural immune system, potentia…
Skills: Employee Relations, Performance Management, Compensation and Remuneration, Recruitment Practices, Labor Law Knowledge
El Segundo, California, United States · On-site
$87k–$150k/yr
The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…
Skills: Space Vehicle Systems Engineering, Spacecraft Subsystems, Spacecraft Design, Systems Engineering, Technical Studies
El Segundo, California, United States • On-site
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Design and develop an alternator for a nuclear-driven high-speed power generator, focusing on active part design and analysis. Responsibilities include creating CAD models, sourcing components from vendors, and performing hands-on assembly and system testing.
Requires a B.S. in Mechanical Engineering specializing in electric motors with fundamental knowledge of permanent magnet motors. A Master's degree and knowledge of motor control systems like SVM are desired.
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, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. 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 leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.
Radiant is seeking a talented Electric Motor Design Engineer to design and develop an alternator for the nuclear-driven, high-speed power generator. Responsibilities include but are not limited to the design and analysis of active parts within the high-speed generator. You will collaborate with engineers cross-functionally and partner closely with the turbomachinery team developing a system for converting mechanical energy to electrical to be delivered to customers safely and reliably. The successful candidate will own active part design of generators, along with performing analysis, simulation, and component selection. You'll make a big impact in commercializing Earth's first mass-produced nuclear reactors and power remote areas and critical infrastructure with abundant clean energy.
Create 3D models and 2D fabrication drawings in CAD and NX.
Communications with vendors to source all components to build the generator.
Perform bench testing, dynamic testing, and system testing for all subsystem components and models.
Perform hands-on assembly, rapid prototyping, and integration of high voltage electric motors and generators.
B.S. in mechanical engineering specializing in electric motors.
Fundamental knowledge of permanent magnet electric motors.
Experience in design, manufacturing, and assembly of electric motors.
M.S in Mechanical Engineering specializing in electric motors.
Knowledge of motor control systems including SVM.
Great team player with one team mentality working with turbomachinery, power electronics, thermal, packaging and software teams.
Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.
Stock: Substantial incentive stock plan for all full-time 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/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.
Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.
The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: [email protected].
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.
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.
Making Nuclear Power Portable.
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.
Offices: 1921 E Maple Ave, El Segundo, California 90245, US
Based on 567 listings with disclosed salaries, most science & research jobs in El Segundo, CA pay between $99k–$225k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 603 open science & research positions in El Segundo, CA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Boeing, The Aerospace Corporation, Varda Space Industries, Northrop Grumman, CHAOS Industries, among others. Browse the listings above to see every active employer.
Yes — 47 of the 603 open science & research positions offer remote or hybrid work (10 remote, 37 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
