Mechanical Engineer I Jobs in California

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Mechanical Engineer (Starshield)

SpaceX

•

Hawthorne, California, USA

Full-time

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 (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch capability to support national security efforts. While Starlink is designed for consumer and commercial use, Starshield is d
Posted 46 days ago | Updated 10 hours ago

Mechanical Engineer Intern

Parker Hannifin

•

Irvine, California, USA

Full-time

Org Marketing Statement At Parker Aerospace, we develop technologies and innovative solutions that enable reliable, efficient and increasingly sustainable flight for the lifecycle of the aircraft, including aftermarket support. Our passionate people with deep engineering expertise, together with our breadth of differentiated technologies, ensure that we make the extraordinary happen and continue to shape the future of aviation in partnership with our customers. As a member of our team, you are
Posted 38 days ago | Updated 10 hours ago

Staff Mechanical Design Engineer

Rivian

•

Carson, California, USA

Full-time

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
Posted 30 days ago | Updated 10 hours ago

Mechanical Engineer, Flight Termination System (Starship)

SpaceX

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Hawthorne, California, USA

Full-time

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, FLIGHT TERMINATION SYSTEM (STARSHIP) As a member of the Flight Termination System team, you will have the exciting opportunity to be responsible for the design of the Starship Flight Termination S
Posted 39 days ago | Updated 10 hours ago

Senior Fluids Mechanical Engineer

Relativity Space

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Long Beach, California, USA

Full-time

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
Posted 38 days ago | Updated 10 hours ago

Senior Mechanical Engineer, Stage Propulsion

Relativity Space

•

Long Beach, California, USA

Full-time

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
Posted 38 days ago | Updated 10 hours ago

Senior Mechanical Engineer 1 - Government Services

Sargent & Lundy LLC.

•

Remote

Full-time

Description Sargent & Lundy's Government Services Division provides cutting-edge engineering and consulting to the management and operating contractors for the US Department of Energy (DOE) and the National Nuclear Security Administration (NNSA). What does this mean? You can be a part of multi-discipline teams developing and designing facilities, systems, and equipment for the nation's major research laboratories and the legacy nuclear weapons production complex. This critical engineering work
Posted 38 days ago | Updated 10 hours ago

Electrical/Mechanical Engineer III - Electrical Wiring and Interconnection Systems (EWIS)

Sierra Nevada Corporation

•

Remote or Plano, Texas, USA

Full-time

The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS t
Posted 38 days ago | Updated 10 hours ago

Experienced or Senior Mechanical System Design Engineer

Boeing Company

•

Seal Beach, California, USA

Full-time

Experienced or Senior Mechanical System Design Engineer Company: The Boeing Company Boeing Commercial Airplanes (BCA) is looking for an Experienced or Senior Mechanical System Design Engineer to join our Out-of-Production (OoP) Mechanical (Mech) Systems Design Engineering (DE) team based in Seal Beach, CA. The OoP Mech Systems DE team is responsible for Continued Operational Safety Program (COSP), Safety Related Problem (SRP); As well as Support to BCA Production, BGS Modifications, BGS Boein
Posted 35 days ago | Updated 10 hours ago

Sr. Mechanical Engineer - Healthcare

Farnsworth Group, Inc.

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Remote

Full-time

Join us and grow your career with a certified Great Place to Work for the last nine years running. We are a team of Engineers, Architects, Surveyors and Scientists committed to making meaningful contributions to the world around us. Our quest for excellence goes beyond the ordinary; we seek extraordinary people who want to showcase their talents and join us in making a difference for our clients and communities. You will be part of a collaborative group that champions your career and passions, e
Posted 43 days ago | Updated 10 hours ago

Mechanical Project Engineer R&D

GAF - ELK Materials Corporation

•

Shafter, California, USA

Full-time

At GAF, we cover more than buildings. We cover each other. No matter what role, tenure, or track, under this roof you are empowered to be there for your teammates, your customers, and especially your community. Under this roof, we don't back down from hard work- we support one another in pursuit of something bigger. We define the future while leading the present. And under this roof, we own our opportunities. Becoming the market leader only happens when everyone feels they have the opportunity,
Posted 37 days ago | Updated 10 hours ago

Senior Mechanical Engineer (Hybrid-Puerto Rico)

RTX Corporation

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Remote or Aguadilla, Aguadilla, Puerto Rico

Full-time

Date Posted: 2025-06-05 Country: United States of America Location: HPR01: Collins Puerto Rico- Aguadilla Road 110 North Km 28.8 San Antonio Industrial Park, Aguadilla, PR, 00603 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Collins Aerospace is looking to hire a Senior Mechanical Engineer to perform design cost management. The primary focus of this position will be to provide Design to Cost (DTC) support for
Posted 53 days ago | Updated 9 hours ago

Sr Electrical/Mechanical Engineer - Electrical Wiring and Interconnection Systems (EWIS)

Sierra Nevada Corporation

•

Remote or Plano, Texas, USA

Full-time

The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS t
Posted 43 days ago | Updated 10 hours ago

Sr. Mechanical Engineer, Mechanisms

Rivian

•

Irvine, California, USA

Full-time

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
Posted 45 days ago | Updated 10 hours ago

Mechanical Design Engineer, Interiors

Tesla Motors

•

Fremont, California, USA

Full-time

Tesla is seeking a talented Engineer to innovate in the realm of interior lighting, switches, and haptics technology. This role involves working on a lean and agile team alongside world-class designers and engineers to drive full-system design. Responsibilities span from concept definition during the industrial design phase to prototype creation, production design release, and launch across multiple Tesla programs. Collaboration with cross-functional teams ensures the delivery of cutting-edge so
Posted 42 days ago | Updated 10 hours ago

Mechanical Design Engineer, Closures Mechanisms

Tesla Motors

•

Fremont, California, USA

Full-time

As a Closures Systems Design Engineer, you will be responsible for conceiving, architecting, designing, and engineering the dynamic exterior systems of Tesla vehicles. You will work alongside pioneering designers and engineers through all stages of the product design cycle: from initial sketch and clay modeling, through architecture and design, and finally to validation and product launch. Responsibilities Serve as a member of the vehicle engineering team to support automotive body and closure
Posted 42 days ago | Updated 10 hours ago

Mechanical Engineer

BP

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Remote or Houston, Texas, USA

Full-time

Entity: Supply, Trading & Shipping Job Family Group: Engineering Group Job Description: About Archaea bp is committed to investing in lower carbon energy so we can meet our ambition to reach net zero by 2050. And while we're still mostly in oil and gas today, bioenergy is one of our five transition growth engines and a key focus to help us support the global energy transition. Archaea Energy, a bp company, is a leader in landfill gas to energy and the largest renewable natural gas (RNG) pr
Posted 57 days ago | Updated 10 hours ago

Sr. Mechanical Design Engineer, Power Electronics

Tesla Motors

•

Palo Alto, California, USA

Full-time

As a Mechanical Design Engineer in Tesla's Power Electronics team, you will design cutting edge, world-class power converters in use across the entirety of Tesla, from Vehicle and Energy Storage to Solar and Manufacturing. You will be joining an elite team of driven engineers with a huge scope, reach, and potential impact. We are hardcore. The work is fast-paced and challenging. Tesla's mission and vision must excite you. Power electronics is unique. Despite its name, it pushes the limits of t
Posted 42 days ago | Updated 10 hours ago

Mechanical Engineer Healthcare Facilities Design

Stantec

•

Sacramento, California, USA

Full-time

Stantec's Buildings team is on a mission to become the world's leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists, and technologists are passionate about the power of design. Our collaborative culture and our innovative, sustainable approach to projects help us create buildings that matter to our world. Together, we are enhancing the quality of life globally through design. Join us and design your place with Stantec. Your Op
Posted 48 days ago | Updated 10 hours ago

Mechanical Engineer Healthcare Facilities Design

Stantec

•

San Francisco, California, USA

Full-time

Stantec's Buildings team is on a mission to become the world's leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists, and technologists are passionate about the power of design. Our collaborative culture and our innovative, sustainable approach to projects help us create buildings that matter to our world. Together, we are enhancing the quality of life globally through design. Join us and design your place with Stantec. Your Op
Posted 48 days ago | Updated 10 hours ago