Graduate Mechanical Engineer - Nuclear Microreactor Design
Decisive Point
Radiant, based in El Segundo, CA, seeks a talented engineer to contribute to design, analysis, and testing of its portable nuclear microreactor. You will own deliverables from concept through build with guidance from senior engineers and collaborate across disciplines to accelerate development. The role requires a strong foundation in engineering first principles and hands-on project experience, with CAD/analysis tools and lab instrumentation. #J-18808-Ljbffr Decisive Point
- Radiant, based in El Segundo, CA, is hiring engineers to contribute to design, analysis, and testing of a microreactor. You’ll own deliverables from concept through build... ...challenges. Qualifications include BS/MS in mechanical or aerospace engineering and a strong grasp of...For graduates
- ...Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active Overview Design, regulate, and oversee the Navy's nuclear propulsion program, including... ...military education and advanced graduate study in technical fields. Entry through...For graduatesApprenticeshipWork at office
- Decisive Point is seeking a Senior Reactor Systems Engineer in El Segundo, CA to design and implement critical procedures for our nuclear microreactor technology. This role requires collaboration with a multidisciplinary team to ensure operational safety and compliance...SuggestedFlexible hours
$133.5k - $184.8k
...mass-produced, portable nuclear microreactors. The company... ...a 1-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe,... ...highly motivated Senior Mechanical Engineer, Mechanisms to design and develop critical mechanisms...SuggestedFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$133.5k - $184.8k
...mass-produced, portable nuclear microreactors. The company... ...a 1-megawatt, fail-safe microreactor that can be transported anywhere... ...modern software engineering to rapidly deliver safe,... ...highly motivated Senior Mechanical Engineer to design and develop critical structures...SuggestedFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$135k - $190k
...technologies to make this possible, with the ultimate goal of enabling human life on Mars.SR. MECHANICAL ENGINEER (HVAC)As a member of the construction and infrastructure team, you will design, build, and activate some of the world’s most technically advanced manufacturing...Permanent employmentTemporary workWeekend work$173k - $237.3k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...to organize nuclear design and analysis strategy... ...thermal, electrical, and mechanical domainsExcellence in...Full timeSummer workImmediate startRemote workRelocationFlexible hoursShift workWeekend work$30 per hour
...one that focuses on short, iterative design cycles, rapid testing in development,... ...and deter future conflicts. Fall 2026 Mechanical Engineering Co‑Op Join us for a dynamic, hands‑on... ...related field. Rising junior, senior, or graduate‑level student preferred. Strong...For graduatesHourly payPermanent employmentTemporary workInternshipLocal areaImmediate startRelocation$158k - $219.45k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...highly motivated Senior Mechanical Engineer to own... ...systems from preliminary design through build and production...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$133.5k - $184.8k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...working closely with design engineers and the manufacturing... ...assembling complex mechanisms and structures....Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$107.5k - $150k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...seeking a highly motivated Mechanical Engineer, Fluids... ...systems from preliminary design through build and...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$133.5k - $184.8k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...working closely with design engineers and the manufacturing... ...assembling complex mechanisms and structures....Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$106.5k - $146.48k
...first mass-produced, portable nuclear microreactors. The company’s... ...is a 1-megawatt, fail-safe microreactor that can be transported... ...development leverages modern software engineering to rapidly deliver safe,... ..., and instrumentation design and qualification for reactor...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$139.5k - $196.88k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...directly informs core design, cooling systems, and... ...across reactor physics, mechanical, and safety teams to...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$105k - $130k
...produced, portable nuclear microreactors.... ...megawatt, fail-safe microreactor that can be... ...modern software engineering to rapidly deliver... ...Assist with nuclear design and analysis tasks... ...: BS or MS in Mechanical Engineering, Nuclear... ...discipline. Graduating in December 2026...For graduatesFull timeSummer workInternshipImmediate startRemote workFlexible hours- ...possible, with the ultimate goal of enabling human life on Mars.MECHANICAL ENGINEER (STARSHIP COMPONENTS MANUFACTURING) The Starship Components... ...regulators and butterfly valves to flap/fin actuators. We design and build valves, regulators, and actuators for maximum...Permanent employmentTemporary workInternshipWeekend work
$105k - $125k
Radiant is seeking a Mechanical Engineer specializing in Fluids Systems in El Segundo, CA. This role involves critical involvement in designing and building fluid systems for the Kaleidos reactor, including responsibilities such as thermal hydraulic analysis and component...Remote job$161.29k - $223.65k
...mass-produced, portable nuclear microreactors. The... ...-megawatt, fail-safe microreactor that can be transported... ...modern software engineering to rapidly deliver safe... ...leadership within the nuclear design and analysis... ...reactor systems, thermal, mechanical, electrical, test,...Full timeSummer workImmediate startRemote workFlexible hoursShift work- ...is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.MECHANICAL ENGINEER, PRINTER DESIGN & MANUFACTURING (RAPTOR)As part of the Raptor 3D printer team, you will play direct role in developing and scaling the...Permanent employmentTemporary workInternship
- Approach Venture is seeking a Senior Thermofluids Engineer in Hawthorne, CA to own the thermal‑fluid design of the heat‑exchange hardware central to next‑gen... ...conditions, with close collaboration across cycle, mechanical, and test teams. #J-18808-Ljbffr Approach Venture
$119.54k - $152.75k
...economical reentry capsules. Varda’s W-Series vehicles are built, designed, and operated by Varda in-house, including the... ...to create a bustling in-space ecosystem.About This RoleThe Mechanical Test Engineer II, Automation builds bespoke test infrastructure that qualifies...Permanent employmentFull timeInternshipImmediate startRelocation packageFlexible hoursShift work- ...ultimate goal of enabling human life on Mars.WELDING AUTOMATION ENGINEER, CHAMBER AND NOZZLE (RAPTOR) SpaceX is seeking an engineer with... ...and pressure cycles across hundreds of reuse cycles. You will design, implement, and scale manual and automated welding systems that...Permanent employmentTemporary workWeekend work
$100k - $117.5k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.MECHANICAL DESIGN ENGINEER (STARSHIP COMPONENTS) The Propulsion Components team develops the most advanced spacecraft and launch vehicle components...Permanent employmentTemporary workWork experience placement$135k - $190k
...is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SR. MECHANICAL DESIGN ENGINEER (STARFALL)The Starfall team is developing the world’s first high-capacity, high-cadence, and low-cost re-entry capsule. The...Permanent employmentTemporary workWeekend work$100k - $130k
...SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.MECHANICAL DESIGN ENGINEER (FALCON)The Falcon team tackles space exploration’s toughest problems through the ongoing development of our reusable...Permanent employmentTemporary workWeekend work$20k
...possible, with the ultimate goal of enabling human life on Mars.MECHANICAL ENGINEER (STARSHIELD) Starshield leverages SpaceX’s Starlink... ...capability to support national security efforts. While Starlink is designed for consumer and commercial use, Starshield is designed for...Permanent employmentTemporary workInternshipWeekend work$100k - $140k
...Senior Mechanical Engineer Build the Future of High-Performance Connectivity At ThinKom, we don't just build antennas - we design high-performance, next-generation mechanical systems that connect the world across air, land, sea, and space. From Inflight Connectivity...Permanent employmentWork at office$72.5k - $87.5k
...Culver City, CA, Position Type: Full Time, Salary Range: Undisclosed, Job Category: Engineering, The Opportunity PAE is seeking a motivated Entry-Level Mechanical Engineer to join our design team in a hybrid office environment in Los Angeles. This role is designed for a...Full timeInternshipWork at office$120k - $160k
...of commitment to changing the foundational assumptions for everything we do in space. What You'll Do: The Senior Mechanical Design Engineer will design and develop mechanisms and moving assemblies for Space Kinetic's core technology, supporting our goal of a...Permanent employmentFlexible hours$137k - $193k
...unprecedented speed and global reach. Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour,... ...and logistics. What You'll Do: As a Senior Mechanical Design Engineer at Inversion, you will play a critical role in the design,...Permanent employment
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