Thermal Analysis jobs in Hawthorne, CA

El Segundo, California

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Today

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-Series vehicles are built, designed, and operated by Varda in-house, including the pharmaceutical processing payloads, the capsules, the C-PICA heat shields, and the satellite buses. From life-saving pharmaceuticals to more powerful fiber optics, there is a world of products use

Full-time

USD 140,333.00 - 179,314.00 per year

Senior Thermal Modeling & Analysis Engineer

El Segundo, California

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Today

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 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. R

Full-time

USD 139,500.00 - 224,700.00 per year

Mechanical Engineer I

Carson, California

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Today

Mechanical Engineer I An entry level position for an innovativeMechanical Engineer with 1-3 years of experience in designing and developingmechanical components for industrial applications. The role includes but is notlimited to supporting the development of new electro-mechanical products and increasingthe efficiency, costs, and durability of existing products. The positionrequires a skilled individual in quality control, and cross-functional communication.The position is in the design group t

Full-time

Thermal Engineering Intern (Summer 2027)

Redondo Beach, California

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Today

Thermal Engineering Intern (Summer 2027) Department: Internship Employment Type: Internship Location: Redondo Beach Compensation: $30.00 / hour Description As a Thermal Engineering Intern at Impulse, you will support thermal management of spacecraft from concept, analysis, and design, to implementation, testing, and flight while working closely with a fast-paced, agile team that strives to make a high-performance spacecraft from a clean sheet design. *This internship is 12 weeks long from

Full-time

USD 30.00 per hour

Mechanical Engineer (Spacecraft)

Redondo Beach, California

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Today

Mechanical Engineer (Spacecraft) Department: Vehicle Engineering Employment Type: Full Time Location: Redondo Beach Compensation: $100,000 - $130,000 / year Description As a Mechanical Engineer at Impulse for our Vehicle Engineering Team, you are responsible for the design, build, test/analysis & integration of your hardware- working with cross-functional engineering teams to accomplish this. This means cradle-to-grave ownership of primary/secondary structure and critical space mechanisms i

Full-time

USD 100,000.00 - 130,000.00 per year

Thermal Hardware and Test Engineer II

El Segundo, California

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Today

Full-time

USD 119,543.00 - 152,749.00 per year

Senior Thermal Engineer

Torrance, California

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Today

About the job Senior Thermal Engineer Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have im

Full-time

Mechanical Engineering Intern - Spring/Summer 2027

Los Angeles, California

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Today

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage. About The Role: Hermeus is seeking talented students with experience in me

Full-time

USD 25.00 - 33.00 per hour

Staff Thermal Engineer

El Segundo, California

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Today

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage-domain dominance. The company's products are powered by Coherent Distributed Networks (CDN ), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Par

Full-time

USD 150,000.00 - 230,000.00 per year

Staff Turbomachinery Responsible Engineer

Los Angeles, California

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Today

About Us At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. The Antares team hails from SpaceX, the Wh

Full-time

USD 140,000.00 - 220,000.00 per year

Senior Turbomachinery Responsible Engineer

Los Angeles, California

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Today

Full-time

USD 140,000.00 - 220,000.00 per year

Staff Propulsion Engineer

El Segundo, California

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Today

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals

Full-time

USD 150,000.00 - 181,000.00 per year

Thermal Engineering Internship - Summer 2027

El Segundo, California

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Today

Full-time

USD 33.00 per hour

Thermo-Mechanical Engineer II

Los Angeles, California

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Today

Full-time

USD 115,000.00 - 185,000.00 per year

Payload Engineer

Los Angeles, California

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Today

Payload Engineer Location: Playa Vista, California (in-person, five days per week) The return lane isn't going to build itself. Come build it with us. Outpost is an orbital logistics company rewriting the rules of global logistics by building reusable Earth-return vehicles that unlock in-space manufacturing, on-orbit warehousing, and 60-minute global delivery through space. Our CarryAll vehicle family returns payloads ranging from 200 kilograms to 10 metric tons, lands within 10 meters of it

Full-time

USD 140,000.00 - 170,000.00 per year

Emerging Talent - Mechanical/Aerospace Engineering Internship

Long Beach, California

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Today

Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Haven Demo's 2025 success made Vast the only operational commercial space station company

Full-time

USD 35.00 - 42.00 per hour

Senior Satellite Mechanical Engineer, Optical Structures

Los Angeles, California

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Today

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by over $1 billion in total funding from leading investors including Altimeter Capital, ICONIQ, Kleiner Perkins, Lightspeed Venture Partners, Redpoint Ventures, and T. Rowe Price - and with over $1 billion in signed contracts across commercial and US government customers, we're mass-producing the highest-power satellite platforms ever built for missi

Full-time

USD 140,000.00 - 175,000.00 per year

Senior Fluid Systems Engineer

Long Beach, California

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Today

At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that's just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact ex

Full-time

USD 132,000.00 - 198,000.00 per year

Vehicle Fluid Systems Engineer II

Long Beach, California

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Today

Full-time

USD 104,000.00 - 156,000.00 per year

Senior Mechanical Integration Engineer

Long Beach, California

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Today

Full-time

USD 129,000.00 - 193,000.00 per year

Thermal Analysis jobs in Hawthorne, CA, USA