Senior Thermal Engineer
$139.5k - $224.7kPow.bio
Location El Segundo, CA Employment Type Full time Location Type On-site Department Engineering Compensation $139.5K – $224.7K offers equity Senior Thermal Engineer Radiant is seeking a driven Senior Thermal Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems. Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions. Identify and implement CFD simulation best practices. Build automated workflows to expand simulation capabilities, accuracy, and efficiencies. Collaborate across teams and disciplines to support design of reduced order analysis methods. Required Qualifications and Skills Bachelor’s degree in engineering, physics, or similar field from an accredited institution. 5+ years of relevant industry experience. 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code. Proficiency with CAD software (Siemens NX). Mastery of finite element and computational fluid dynamics modeling principles and methods. Experience communicating and distilling information with cross-functional teams. Desired Qualifications and Skills Experience with radiation heat transport modeling. Knowledge of nuclear reactor design. Driven, self-motivated, and takes ownership of work end to end. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Must work 100% onsite at El Segundo HQ. Benefits and Perks 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. Equal Opportunity Employment Statement 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. Visa Sponsorship Unfortunately, we are unable to provide visa sponsorship at this time. Export Control 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. Compensation Range: $139.5K – $224.7K #J-18808-Ljbffr Pow.bio
$139.5k - $224.7k
...practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that... ...in 2028. About the Role Radiant is seeking a driven Senior Thermal Modeling Engineer with expertise in CFD and thermal FEA...SeniorFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$140k - $200k
Critical Energy Systems, located in Hawthorne, CA, is looking for a talented Senior Systems Engineer with expertise in thermal and fluid dynamics. This role involves designing and optimizing clean energy systems while collaborating with various engineering teams. The ideal...Senior- ...leading advanced reactor company in El Segundo is seeking a Senior Thermal Modeling Analyst. This role involves executing thermal CFD analysis... .... Candidates should possess a bachelor’s degree in engineering or physics and have over 5 years of experience in CFD. Strong...SeniorFull timeFlexible hours
- Pow.bio is seeking a Senior Thermal Modeling Engineer in El Segundo, CA, to lead thermal CFD analysis for the Kaleidos reactor systems. The role requires a Bachelor's degree in engineering or physics and over 5 years of experience with CFD tools like STAR-CCM+ and Ansys...SeniorFull timeFlexible hours
$151.3k - $226.9k
## Senior Spacecraft Thermal EngineerApplylocations: El Segundo, CAtime type: Full timeposted on: Posted Yesterdayjob requisition id: R015388The... ...primarily of highly-trained mechanical and aerospace engineers, VSD provides national expertise in the areas of vehicle engineering...SeniorFull timeFor contractorsWork at officeImmediate startRemote workRelocation packageFlexible hours- A technology company is seeking a Senior Thermal Modeling Engineer to undertake CFD analysis and thermal modeling for advanced reactor systems in El Segundo, California. The ideal candidate should have a Bachelor’s degree in engineering or physics, with at least 5 years...Senior
- A leading engineering firm in California is seeking a Senior Thermal-Hydraulics Engineer to design and implement simulations for advanced microreactors. This role demands expertise in CFD and thermal FEA modeling, with responsibilities including executing thermal analysis...Senior
- Pow.bio is seeking a driven Senior Thermal Engineer to design, develop, and implement simulations for the Kaleidos microreactor. You will tackle cutting-edge problems, ensuring the reliability and safety of high-temperature gas reactor systems. The ideal candidate has a...Senior
- A leading engineering company in El Segundo seeks a Senior Thermal Engineer with expertise in CFD and thermal FEA modeling. The role involves owning thermal CFD analysis, developing flow and heat transfer models, and collaborating with teams to enhance reactor systems....Senior
- Pow.bio is seeking a Senior Thermal-Hydraulics Engineer in El Segundo, CA to design and implement simulations for the Kaleidos microreactor. This role requires expertise in CFD and thermal FEA modeling and involves collaboration across teams to solve complex engineering...SeniorFull time
- Karman Industries, located in Signal Hill, California, is looking for a Thermal Systems Engineer to innovate and optimize next-generation thermal management systems. Candidates should hold a Bachelor's degree in Mechanical Engineering, possess at least 5 years of relevant...Senior
$114k - $171k
...Northrop Grumman Space Sector has an opening for a Principal Thermal Systems Engineer/Sr. Principal Thermal Systems Engineer to join our team of... ...professionals, ranging from early-career engineers to senior chief engineers and leadership. Supporting numerous programs...SeniorFull timeRelocationMonday to ThursdayFlexible hoursShift work- ...this position requires access to export-controlled data. Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field. 5+ years of experience in thermal engineering, preferably in spacecraft or aerospace systems. Proficiency with thermal...SeniorFull timeWork at office
- Honeywell in Torrance, CA is seeking a Senior Advanced Systems Engineer to lead performance analysis and modeling for Environmental Control Systems. The role involves collaboration across teams to define system performance, develop models, and support testing and integration...Senior
- ...DAPS) that comprehensively uses machine learning to optimally engineer, additively manufacture, and flexibly assemble complex... ...impact will shape the future of technology and production. As a Senior Thermal Engineer, you will serve as the technical authority for Divergent...SeniorTemporary workFor contractorsWork at officeWeekend work
- A leading aerospace technology company in Los Angeles seeks a Senior Spacecraft Thermal Engineer to design and develop thermal control systems for telescope platforms and spacecraft. The role involves collaboration with a multidisciplinary team to ensure thermal stability...SeniorFlexible hours
- ...Karman Industries is at the forefront of revolutionizing industrial thermal energy. Our mission is to electrify global thermal systems... ...industry and contribute to a more sustainable world. Thermal Systems Engineer Karman Industries is seeking a highly motivated Thermal Systems...Senior
- ...Ventures, Venrex, Marlinspike Partners, and Embedded Ventures. Role Summary We are seeking a highly-motivated and hands-on Senior Spacecraft Thermal Engineer to join our growing team. In this role, you’ll design and develop thermal control systems for telescope platforms and...SeniorWork at officeLocal areaRemote workFlexible hours3 days per week
$160k - $205k
Exponent Inc. is seeking a Manager/Managing Engineer in Los Angeles, CA, specializing in Chemical Process Safety. This role involves conducting technical investigations, risk assessment, and preparing comprehensive reports. Ideal candidates will have an M.S. or Ph.D. in...Senior$130k - $180k
...the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. THERMAL ENGINEER, THERMAL & FLUID ANALYSIS (STARSHIP) As a Senior Thermal Engineer on the Starship Thermal & Fluids analysis team, you are responsible for the thermal...SeniorPermanent employmentFull timeTemporary workWeekend work$160k - $210k
...Sr. Thermal Protection System Engineer Location: Playa Vista, California (in-person, five days per week) Outpost is pioneering Earth return logistics for space. We're building vehicles that can return payloads from orbit safely and precisely enabling faster space...SeniorFull timeTemporary workFlexible hours- ...in hearing about your best work and accomplishments across any domain and from any points in your life. About the Role As a Thermal Engineer, you will drive the detailed thermal design of our spacecraft at the component and integrated level. You'll develop our thermal...
$95k - $115k
Thermal Engineer Department: Vehicle Engineering Employment Type: Full Time Location: Redondo Beach Reporting To: Seth Kovnat, Director of Vehicle Engineering Compensation: $95,000 - $115,000 / year Description As a Thermal Engineer at Impulse, you will be responsible...Permanent employmentFull time$105k - $165k
Thermal & Vacuum Test Engineer Department: Assembly, Integration & Test Employment Type: Full Time Location: Redondo Beach Compensation: $105,000 - $165,000 / year Description As a Thermal & Vacuum Test Engineer at Impulse, you will design, develop, and operate environmental...Permanent employmentFull time- A leading aerospace company in Redondo Beach seeks a skilled Thermal Engineer to manage thermal aspects of spacecraft. You are expected to develop thermal models, design management hardware, and collaborate with teams to improve spacecraft performance. A Bachelor's in...
- An innovative aerospace company in Hawthorne, CA is seeking motivated interns to contribute to the development of spacecraft components. Interns will take on significant responsibilities similar to full-time team members, tackling challenges and participating in the design...Daily paidFull timeInternship
- ...people to join our world-class team. We are looking for an experienced contributor to take on a leadership role within the Thermal Engineering team, responsible for all aspects of the design, analysis and test of Lunar systems. We move fast, we have hardware going to...SeniorRemote workHome officeFlexible hoursNight shift
- A leading aerospace manufacturer is seeking a Thermal & Vacuum Test Engineer in Redondo Beach, California. You will design and operate test systems for spacecraft components, ensuring reliability and performance under space-like conditions. The ideal candidate will have...
- Decisive Point is seeking a Reactor Operations Engineer in El Segundo, CA, to manage and design procedures for groundbreaking nuclear microreactor technology. This role requires collaboration with multidisciplinary teams to ensure safety and compliance in reactor operations...Senior
- A leading aerospace company in Hawthorne, California, is seeking a Thermal Engineer to develop robust thermal designs for spacecraft. You will build testing systems for validating performance and guide material selection for components. Ideal candidates will have experience...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Thermal Engineer. Be the first to apply!
- thermal engineer El Segundo, CA
- senior procurement El Segundo, CA
- senior director product management El Segundo, CA
- senior electronic design engineer El Segundo, CA
- senior manager customer operations El Segundo, CA
- senior manager clinical operations El Segundo, CA
- senior vmware engineer El Segundo, CA
- senior engineering technician El Segundo, CA
- sr project manager El Segundo, CA
- senior performance engineer El Segundo, CA



