Heat transfer jobs in costa mesa, ca

Irvine, California

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Today

About Rivian Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it

Full-time

USD 121,500.00 - 151,900.00 per year

Battery Test and Validation Engineer II, Safety and Abuse

Tustin, California

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Today

Full-time

USD 77,800.00 - 97,300.00 per year

RF Mechanical Engineer I (Onsite)

Remote or Tucson, Arizona

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Today

Date Posted: 2026-09-28 Country: United States of America Location: US-AZ-TUCSON-M02 ~ 1151 E Hermans Rd ~ BLDG M02 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date Are you ready

Full-time

USD 57,200.00 - 108,800.00 per year

Thermal Engineer

Huntington Beach, California

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Today

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through

Full-time

USD 115,000.00 - 150,000.00 per year

Lead Mechanical Engineer 1 - Mission Critical

Remote

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Today

Responsibilities This is a lead-level engineering position that offers a variety of challenging opportunities in Mechanical Engineering and will provide an excellent opportunity for career advancement. Lead Mechanical design engineering efforts on a multi-disciplined project design team and apply mechanical engineering expertise to the design and analysis of special purpose equipment, pressure vessels, and interfacing systems, controls, and structural support elementsPrepare and review complex

Full-time

USD 118,023.00 - 180,313.00 per year

Senior Mechanical Engineer 1 - Nuclear Plant Analysis

Remote

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Today

Responsibilities This position will offer you the ability to directly apply your knowledge of thermodynamics, heat transfer, fluid mechanics, and experience in power plant engineeringYou will be preparing or reviewing calculations, evaluations, and technical reports to support client recommendations and reviews, and will additionally conduct equipment sizing, optimization evaluation, and selection in response to client needsWhile supporting clients and project teams with other Mechanical Engine

Full-time

USD 84,762.00 - 129,498.00 per year

Spacecraft Thermal Engineer (I/II)

Irvine, California

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Today

Join a team where your impact reaches beyond the stars! At Terran Orbital, you're not just part of the system - you're a vital force propelling our mission forward. As trailblazers in satellite manufacturing and aerospace innovation, we shatter boundaries daily to deliver groundbreaking solutions that power our nation's defense and commercial missions. We are a unique, fast growing, and trusted team dedicated to swiftly and efficiently designing, building, launching, and operating state of the a

Full-time

USD 80,000.00 - 100,000.00 per year

May 2027 New Graduate Engineer, Vehicle Performance

Huntington Beach, California

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Today

Full-time

USD 115,000.00 - 130,000.00 per year

Vehicle Fluid Systems Engineer II

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 104,000.00 - 156,000.00 per year

Senior Fluid Systems Engineer

Long Beach, California

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Today

Full-time

USD 132,000.00 - 198,000.00 per year

Mechanical Engineer Consultant 2 (Nuclear Plant Analysis) - Nuclear

Remote

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Today

Responsibilities Our electric power generation clients are seeking to increase the power output of their existing power plants to meet the electric demands. This is expanding work in the Mechanical Analysis Engineering group. You will work on major systems, equipment and plant process in the following areas: Develop and lead licensing basis system and component evaluations for nuclear power uprate projects.This position will offer you the ability to directly apply your knowledge of thermodynami

Full-time

USD 145,310.00 - 222,001.00 per year

Mechanical Engineer - Lethality

Costa Mesa, California

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7d ago

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Full-time

USD 129,000.00 - 171,000.00 per year

Lead Mechanical Engineer 2 (Nuclear Plant Analysis) - Nuclear

Remote

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Today

Full-time

USD 134,546.00 - 205,557.00 per year

CFD/Thermal Hydraulics Engineer III-IV

Remote or Rockville, Maryland

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Today

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at ;br> Job Description This role is responsible for the engineering design and development of mechanical s

Full-time

USD 122,500.00 - 138,750.00 per year

Senior Mechanical Engineer 2 - Nuclear Plant Analysis

Remote

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Today

Full-time

USD 100,019.00 - 152,807.00 per year

Propulsion Engineer - Solid

Remote or Folsom, California

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Today

Voyager is an innovative space, defense, and national security technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets to lead in the race for technological and operational superiority from ground to space. Forge the Future: Join Voyager Technologies The future belongs to those who build it. At Voyager Technologies

Full-time

USD 103,000.00 - 218,000.00 per year

Mechanical Engineer, Space Emerging Talent

Costa Mesa, California

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7d ago

Full-time

USD 86,000.00 - 114,000.00 per year

Thermal Engineer, Hypersonic Air Vehicles

Costa Mesa, California

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7d ago

Full-time

USD 129,000.00 - 171,000.00 per year

Thermal Engineer, Mission Electronics

Costa Mesa, California

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7d ago

Full-time

USD 129,000.00 - 171,000.00 per year

Thermal Engineer, Thermal Protection Systems (TPS)

Costa Mesa, California

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7d ago

Full-time

USD 129,000.00 - 171,000.00 per year

Heat transfer jobs in Costa Mesa, CA, USA