Mechanical Engineer II jobs in California

Principal Mechanical Engineer II, Early Research and Development

Santa Clara, California

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Today

Title: Principal Mechanical Engineer II, Early Research and Development Description: A healthier future. It's what drives us to innovate. To continuously advance science and ensure everyone has access to the healthcare they need today and for generations to come. Creating a world where we all have more time with the people we love. We are working to make next-generation sequencing simple and accessible enough for routine use. By accelerating clinical research, streamlining workflows, and expand

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$57.49

Mechanical Engineer II

Los Angeles, California

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Today

Overview Join a Team Where Engineering Excellence Drives Opportunity At Affiliated Engineers, Inc. (AEI), we bring together expertise and innovation to solve the most complex challenges. Since 1978, we've supported mission-driven organizations in designing systems and environments that advance society and improve lives. Today, with more than 900 professionals across 22 offices, we help shape the future of healthcare, science and technology, energy, education, and other vital sectors. From ele

Full-time

USD 90,000.00 - 120,000.00 per year

Mechanical Engineer II

Irvine, California

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22d ago

Position Summary Parker Aerospace, an operating segment of Parker Hannifin Corporation, is one of the world's leading producers of flight control, hydraulic, fuel inerting, fluid conveyance, thermal management, material handling and engine systems components for the aerospace and defense industries. We design and build equipment for virtually every aircraft and aero engine being produced in the world today as well as ground vehicles. In addition to game-changing technology, our customers look t

Full-time

Compensation information provided in the description

Mechanical Engineer II - Structural Engineer

El Dorado Hills, California

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Today

Date Posted: 2026-01-16 Country: United States of America Location: US-CA-EL DORADO HILLS-105 ~ 5180 E Golden Foothill Pkwy ~ GOLDEN FOOTHILL, Ste 200 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: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation an

Full-time

USD 75,800.00 per year

Mechanical Test Engineer II

Fairfield, California

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Today

Date Posted: 2026-03-20 Country: United States of America Location: US-CA-FAIRFIELD-3530 ~ 3530 Branscombe Rd ~ BRANSCOMBE Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance Type: None/Not Required Security Clearance Status: Not Required Collins Aerospace is seeking a Mechanical Test Engineer II to join our team Onsite in Fairfield, CA! In this role, you'll have the opportunity to support Destructive and Non-Destructive Testing (NDT)

Full-time

USD 75,800.00 per year

Level II Mechanical Engineer

Yorba Linda, California

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Today

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trus

Full-time

USD 76,500.00 - 141,500.00 per year

Mechanical Engineer

Santa Clara, California

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28d ago

Job Title: Principal Mechanical Engineer II, Early Research and Development Location: Santa Clara, CA Core ResponsibilitiesYou will lead the end-to-end mechanical design and development of mechanical sub-systems including electro-mechanical, pneumatic, fluidic, and thermal components.You will collaborate with engineers from other disciplines (electrical, consumables, materials) to define and manage all critical technical interfaces for your module.You will develop novel mechanisms for automated

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Depends on Experience

Mechanical Engineer - Thermal Analysis (Level II)

Sunnyvale, California

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Today

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready soluti

Full-time

USD 70,100.00 - 123,625.00 per year

Mechanical Engineer (Starship Avionics)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. MECHANICAL ENGINEER (STARSHIP AVIONICS) The Starship team supports the mission to revolutionize orbital flight and space travel, opening access for humankind to establish new frontiers in space and ultimately become a

Full-time

USD 100,000.00 - 115,000.00 per year

Mechanical Engineer II - Defense Systems Division

Irvine, California

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22d ago

Position Summary Position Summary Parker Aerospace, an operating segment of Parker Hannifin Corporation, is one of the world's leading producers of flight control, hydraulic, fuel, inerting, fluid conveyance, thermal management, and engine systems and components for the aerospace industry. We design and build equipment for virtually every aircraft and aero engine being produced in the world today. In addition to game-changing technology, our customers look to us for shorter lead times, lower c

Full-time

Compensation information provided in the description

Mechanical Engineer, Consumer Hardware (Starlink)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. MECHANICAL ENGINEER, CONSUMER HARDWARE (STARLINK) SpaceX is leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world's

Full-time

USD 95,000.00 - 115,000.00 per year

Mechanical Design Engineer II

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 85,000.00 - 107,000.00 per year

Launch Mechanical 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 - 143,000.00 per year

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Mechanical Engineer II jobs in California, USA