Test Engineer III Jobs in California

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Lead Development Test Engineer (Starshield)

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. LEAD DEVELOPMENT TEST 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, Star
Posted 3 days ago | Updated 5 hours ago

Integration & Test Engineer (Falcon 9) - 2nd Shift

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. INTEGRATION & TEST ENGINEER (FALCON 9) - 2ND SHIFT RESPONSIBILITIES: Oversee the build and test process for the pneumatic, hydraulic and structural subassemblies of the Falcon launch vehicle, focusing on the Falcon He
Posted 25 days ago | Updated 5 hours ago

Principal Product Test Engineer

Marvell Semiconductor Inc.

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Santa Clara, California, USA

Full-time

About Marvell Marvell's semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, automotive, and carrier architectures, our innovative technology is enabling new possibilities. At Marvell, you can affect the arc of individual lives, lift the trajectory of entire industries, and fuel the transformative potential of tomorrow. For those looking to make their mark on purposeful and enduring innovation, above and be
Posted 24 days ago | Updated 5 hours ago

Senior Staff System Validation Test Engineer

Marvell Semiconductor Inc.

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Santa Clara, California, USA

Full-time

About Marvell Marvell's semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, automotive, and carrier architectures, our innovative technology is enabling new possibilities. At Marvell, you can affect the arc of individual lives, lift the trajectory of entire industries, and fuel the transformative potential of tomorrow. For those looking to make their mark on purposeful and enduring innovation, above and be
Posted 59 days ago | Updated 5 hours ago

Internship, Test Equipment Mechanical Design Engineer, Cell Engineering (Winter/Spring 2026)

Tesla Motors

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Palo Alto, California, USA

Full-time

Consider before submitting an application: This position is expected to start around January 2026 and continue through the Winter/Spring term (ending approximately May 2026) or continuing into Summer 2026 if available and there is an opportunity to do so. We ask for a minimum of 12 weeks, full-time and on-site, for most internships. Our internship program is for students who are actively enrolled in an academic program. entry level candidates seeking employment after graduation and not returnin
Posted 6 days ago | Updated 5 hours ago

Principal Avionics Test 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 11 days ago | Updated 5 hours ago

Principal Laser Test Engineer

Boston Scientific Corporation

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Carlsbad, California, USA

Full-time

Additional Location(s): N/A Diversity - Innovation - Caring - Global Collaboration - Winning Spirit - High Performance At Boston Scientific, we'll give you the opportunity to harness all that's within you by working in teams of diverse and high-performing employees, tackling some of the most important health industry challenges. With access to the latest tools, information and training, we'll help you in advancing your skills and career. Here, you'll be supported in progressing - whatever your
Posted 58 days ago | Updated 5 hours ago

System Integration and Test Engineer

ASML USA

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San Diego, California, USA

Full-time

Introduction to the job We are seeking a System Test Engineer (STE) to join our System Integration Management & Verification group in San Diego, CA. In this role, you will design and implement tests based on risk assessments, product requirements, and design specifications. Your work will be critical in ensuring the release of a well-defined and validated system configuration. Our EUV light source is a complex system composed of process gases, high-power lasers, optics, electronics, mechatroni
Posted 56 days ago | Updated 5 hours ago

Senior Hardware Test Engineer

NVIDIA Corporation

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Santa Clara, California, USA

Full-time

Widely considered to be one of the technology world's most desirable employers, NVIDIA is an industry leader with groundbreaking developments in High-Performance Computing, Artificial Intelligence and Visualization. The GPU, our invention, serves as the visual cortex of modern computers and is at the heart of our products and services. Our work opens up new universes to explore, enables outstanding creativity and discovery and powers what were once science fiction inventions from artificial inte
Posted 53 days ago | Updated 5 hours ago

Avionics Test 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. AVIONICS TEST 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
Posted 8 days ago | Updated 5 hours ago

Sr. Battery Test Engineer

Rivian

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Tustin, 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 25 days ago | Updated 5 hours ago

Staff Flight Test Engineer

Aduril Industries

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San Clemente, 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 26 days ago | Updated 5 hours ago

Senior Systems Integration Test Engineer

PsiQuantum

•

Milpitas, California, USA

Full-time

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnes
Posted 59 days ago | Updated 5 hours ago

Staff Test 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 2 days ago | Updated 5 hours ago

Internship, Mechanical Test Engineer (Winter/Spring 2026)

Tesla Motors

•

Fremont, California, USA

Full-time

Consider before submitting an application: This position is expected to start around January 2026 and continue through the Winter/Spring term (ending approximately May 2026) or continuing into Summer 2026 if available and there is an opportunity to do so. We ask for a minimum of 12 weeks, full-time and on-site, for most internships. Our internship program is for students who are actively enrolled in an academic program. entry level candidates seeking employment after graduation and not returnin
Posted 6 days ago | Updated 5 hours ago

Software Development Engineer in Test, TikTok Global E-Commerce - USDS

TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A168039 Apply to this job Share this listing: Responsibilities About the team Our quality assurance engineering team is responsible for keeping the e-commerce ecosystem stable, secure and intuitive for our users. We are looking for passionate and talented people to join us as we drive the future of e-commerce here at TikTok. What You'll Do: 1. Responsible for the quality assurance of e-commerce consumer side, seller side, creator si
Posted 55 days ago | Updated 4 hours ago

System/Solution Test Engineer

AMD (Advanced Micro Devices)

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Santa Clara, California, USA

Full-time

WHAT YOU DO AT AMD CHANGES EVERYTHING We care deeply about transforming lives with AMD technology to enrich our industry, our communities, and the world. Our mission is to build great products that accelerate next-generation computing experiences - the building blocks for the data center, artificial intelligence, PCs, gaming and embedded. Underpinning our mission is the AMD culture. We push the limits of innovation to solve the world's most important challenges. We strive for execution excellenc
Posted 5 days ago | Updated 5 hours ago

PCBA Test Engineer

PsiQuantum

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Palo Alto, California, USA

Full-time

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnes
Posted 60+ days ago | Updated 5 hours ago

Software QA Test Dev Engineer

NVIDIA Corporation

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Santa Clara, California, USA

Full-time

We are seeking a qualified Software QA Test Development Engineer to join our GPU SWQA team. The successful candidate will demonstrate substantial experience with AI technologies for automation of test cases, as well as an in-depth understanding of both Windows and Linux operating systems. Comprehensive knowledge of system architecture is essential, along with a strong command of PC I/O architecture and common bus interfaces, including PCI-E, USB, and SATA. Familiarity with specifications pertain
Posted 25 days ago | Updated 5 hours ago

Principal Software Engineer (Integration and Test) - Azure Data Processing Unit

Microsoft Corporation

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Santa Clara, California, USA

Full-time

Microsoft Silicon, Cloud Hardware, and Infrastructure Engineering (SCHIE) is the team behind Microsoft's expanding Cloud Infrastructure and responsible for powering Microsoft's "Intelligent Cloud" mission. SCHIE delivers the core infrastructure and foundational technologies for Microsoft's over 200 online businesses including Bing, MSN, Office 365, Xbox Live, Teams, OneDrive, and the Microsoft Azure platform globally with our server and data center infrastructure, security and compliance, operat
Posted 4 days ago | Updated 5 hours ago