senior mechanical engineer Jobs in california

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Senior Mechanical Engineer

AECOM Corp. - Worldwide

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Orange, California, USA

Full-time

Company Description Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating in
Posted 27 days ago | Updated 16 days ago

Senior Mechanical Engineer

AECOM Corp. - Worldwide

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Oakland, California, USA

Full-time

Company Description Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating in
Posted 27 days ago | Updated 16 days ago

Sr. Mechanical Engineer, Closures

Rivian

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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 5 days ago | Updated 10 hours ago

Sr. Mechanical Engineer (Critical Infrastructure)

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. SR. MECHANICAL ENGINEER (CRITICAL INFRASTRUCTURE) As a member of the construction and infrastructure team, you will design, build, and activate some of the world's most technically advanced manufacturing facilities. Yo
Posted 11 days ago | Updated 10 hours ago

Sr. Mechanical Engineer, Cockpit and Trim

Rivian

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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 10 days ago | Updated 10 hours ago

Sr. Mechanical Engineer, Cell Electrode

Tesla Motors

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Fremont, California, USA

Full-time

Tesla is looking for a highly motivated Mechanical Engineer to develop manufacturing equipment and processes for our cutting-edge battery products. Battery development is at the heart of our company, and this is an exciting opportunity work directly the central challenge with electric vehicles - battery cost. Tesla is a demanding and fast-paced environment where you will work with a highly motivated team on extremely challenging projects. In addition to developing manufacturing equipment and pr
Posted 46 days ago | Updated 10 hours ago

Senior Mechanical Engineer - Hydropower

Black & Veatch

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Rancho Cordova, California, USA

Full-time

Together, we own our company, our future, and our shared success. As an employee-owned company, our people are Black & Veatch. We put them at the center of everything we do and empower them to grow, explore new possibilities and use their diverse talents and perspectives to solve humanity's biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable infrastructure and our expertise in engineering, procurement, consulting and construction, together we are build
Posted 60+ days ago | Updated 10 hours ago

Sr. Mechanical Engineer, Cell Development

Tesla Motors

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Palo Alto, California, USA

Full-time

Battery Cells are the common denominator for every Tesla product. Our product requirements demand ground-up cell architectures with state-of-the-art performance, manufactured at volumes that are orders of magnitude higher than the products they power. Our environment is fast-paced and incredibly exciting, so being passionate and self-motivated to push your limits is critical. Our team works with engineering groups across various disciplines, requiring strong communication skills and a team-first
Posted 60+ days ago | Updated 10 hours ago

Sr. Mechanical Engineer - Seat Complete

Rivian

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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 60+ days ago | Updated 10 hours ago

Senior Mechanical Engineer-Compressors/Compression Systems

Jobot

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Fountain Valley, California, USA

Full-time

This Jobot Job is hosted by: Holly Leahy Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $125,000 - $190,000 per year A bit about us: We are a leading energy and infrastructure engineering firm based in Southern California, with a focus on gas utility, refining, and midstream projects throughout the Western U.S. We are currently looking for a dynamic and driven individual to lead systems engineering efforts for a range of energy infrastructu
Posted 3 days ago | Updated 6 hours ago

Senior Mechanical Engineer - MEP

The Search Solutions, LLC

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Santa Clarita, California, USA

Full-time

Senior Mechanical Engineer will lead MEP design efforts, mentor junior staff, and help drive the continued growth of our firm. This role requires hands-on HVAC and plumbing design in Revit, strong leadership skills, and a practical understanding of construction. The ideal candidate is collaborative, detail-oriented, and ready to take an active role in project delivery, internal training, and business development. Key Responsibilities: Lead HVAC and plumbing system design for a range of building
Easy Apply
Posted 9 days ago | Updated 2 days ago

Senior Mechanical Engineer

SAIC

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Remote

Full-time

Job ID: 2504836 Location: REMOTE WORK, WA, US Date Posted: 2025-04-18 Category: Engineering and Sciences Subcategory: Mechanical Engr Schedule: Full-time Shift: Day Job Travel: Yes, 25 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: Yes Description SAIC is seeking an organized, motivated, experienced Senior Mechanical Engineer who will work effectively in a fast-paced environment, specifically with submarine laun
Posted 11 days ago | Updated 8 hours ago

Senior Mechanical Engineer - P2S

Legence Therma LLC

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Long Beach, California, USA

Full-time

P2S stands as a provider of professional engineering services to a broad range of markets, including higher education, healthcare, ports/harbors, industrial, entertainment, commercial, laboratories, municipal, and federal sectors. Our specialties include electrical, mechanical, plumbing, fire protection, and technology integration. Our offered services range from engineering and commissioning to construction management. With over 300 dedicated employees, P2S is an internationally recognized lead
Posted 2 days ago | Updated 10 hours ago

Sr. Mechanical Engineer - Healthcare - P2S

Legence Therma LLC

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Irvine, California, USA

Full-time

P2S stands as a provider of professional engineering services to a broad range of markets, including higher education, healthcare, ports/harbors, industrial, entertainment, commercial, laboratories, municipal, and federal sectors. Our specialties include electrical, mechanical, plumbing, fire protection, and technology integration. Our offered services range from engineering and commissioning to construction management. With over 300 dedicated employees, P2S is an internationally recognized lead
Posted 3 days ago | Updated 10 hours ago

Senior Mechanical Engineer - Remote Maintenance

Commonwealth Fusion Systems

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Remote or Massachusetts, USA

Full-time

About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent and new technologies, we're designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future. We're in the best position to make it happen. Since 2018, we've raised over $2 billion in capital - more than any other fusion energy company in th
Posted 34 days ago | Updated 10 hours ago

Sr. Mechanical Engineer

KLA

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Milpitas, California, USA

Full-time

Company Overview KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel d
Posted 58 days ago | Updated 10 hours ago

Senior Mechanical Engineer

Pond & Company

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Remote or Peachtree Corners, Georgia, USA

Full-time

About the Position We are seeking a Senior Mechanical Engineer to join our growing Professional Design Services team in either one of the following Pond offices (Atlanta, GA; Augusta, GA; Savannah, GA; Jacksonville, FL; Tempa, FL; Port Orange, FL; Columbia, SC; Charlotte, NC; Huntsville, AL; Mobile, AL; New Orleans, LA) or as a Remote Employee. The ideal candidate possesses 10+ years of related MEP design engineering experience and wants to grow, collaborate, and innovate. In this position, the
Posted 50 days ago | Updated 10 hours ago

Senior Mechanical Engineer, Stage Propulsion

Relativity Space

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Long Beach, California, USA

Full-time

At Relativity Space, we have two audacious goals: to build the next great commercial launch company with Terran R and to become America's leading force in additive manufacturing innovation. Both contribute to our long-term vision of creating humanity's industrial base on Mars, paving the way for interplanetary life to expand the possibilities of the human experience. This journey begins right here on Earth - where we design, build, and fly rockets to deliver customer payloads to orbit. Terran R,
Posted 50 days ago | Updated 10 hours ago

Senior Mechanical Engineer - Sentry

Aduril Industries

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Irvine, California, USA

Full-time

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
Posted 60+ days ago | Updated 10 hours ago

Senior Mechanical Engineer - Therma

Legence Therma LLC

•

San Jose, California, USA

Full-time

Therma, a Legence company For over 50 years, Therma has continued to redefine the mechanical construction landscapes in California. Renowned for outstanding client service and attention to detail, we balance innovative, facility-specific solutions with a pragmatic, cost-conscious approach. Today, the firm employs more than 1,100 people in 3 regional offices, and its clients represent a diverse range of market sectors, including Biopharmaceutical, Education, Healthcare, Food & Beverage, Commerci
Posted 31 days ago | Updated 10 hours ago