Principal Engineer Jobs in California

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Principal Power Electronics Engineer

Draper

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Remote or Cambridge, Massachusetts, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas
Posted 46 days ago | Updated moments ago

Principal Machine Learning Engineer, Trust & Safety

Pinterest, Inc.

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Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility
Posted 60+ days ago | Updated moments ago

Apartments.com - Principal Software Engineer

Costar Group

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Orange, California, USA

Full-time

Apartments.com - Principal Software Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real
Posted 60+ days ago | Updated moments ago

Apartments.com - Principal Software Engineer

Costar Group

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California, USA

Full-time

Apartments.com - Principal Software Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real
Posted 60+ days ago | Updated moments ago

Principal R&D Engineer

Synopsys, Inc.

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Sunnyvale, California, USA

Full-time

Descriptions & Requirements Job Description and Requirements We Are: At Synopsys, we drive the innovations that shape the way we live and connect. Our technology is central to the Era of Pervasive Intelligence, from self-driving cars to learning machines. We lead in chip design, verification, and IP integration, empowering the creation of high-performance silicon chips and software content. Join us to transform the future through continuous technological innovation. You Are: You are a highly
Posted 60+ days ago | Updated moments ago

Principal Applications Integration Engineer - Shockwave

Johnson & Johnson

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Remote or Santa Clara, California, USA

Full-time

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn m
Posted 60+ days ago | Updated moments ago

Principal Digital Design Engineer

OSI Engineering, Inc.

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San Jose, California, USA

Full-time

Principal Digital Design Engineer A premier chip and silicon IP provider focused on accelerating and securing data is seeking an exceptional Principal Digital Design Engineer to join its Memory Interface Chip (MIC) team in San Jose, CA. This is an exciting opportunity to work alongside some of the industry s most innovative engineers on cutting-edge technology that drives faster and more secure data solutions. In this full-time role, the Principal Digital Design Engineer will report directly to
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Posted 60+ days ago | Updated 9 days ago

Senior Principal Systems Safety Engineer (Hybrid)

RTX Corporation

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Remote or Cedar Rapids, Iowa, USA

Full-time

Date Posted: 2025-05-12 Country: United States of America Location: HIA32: Cedar Rapids, IA 400 Collins Rd NE , Cedar Rapids, IA, 52498-0505 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Collins Aerospace is seeking an experienced System Safety Engineer within our Missions Systems organization. This engineer will b
Posted 60+ days ago | Updated moments ago

Principal AI/ML Engineer - Onboard Embodied AI

General Motors

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Mountain View, California, USA

Full-time

Job Description Hybrid: This role is categorized as hybrid. This means the successful candidate is expected to report to the Mountain View Technical Center in the Bay Area three times per week, at minimum. Role: As a Technical Lead in Machine Learning within the Onboard Embodied AI organization, you will be a senior individual contributor driving cutting-edge end-to-end machine learning solutions directly impacting autonomous driving performance. Your role is pivotal in designing, architecting
Posted 60+ days ago | Updated 9 hours ago

Principal Software Engineer - Frontend Architecture

Roblox

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San Mateo, California, USA

Full-time

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. At Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.We're on a mission to connect a billion people with op
Posted 60+ days ago | Updated moments ago

Principal Optical 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 57 days ago | Updated moments ago

Principal Software Developer Engineer

Fortinet

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Sunnyvale, California, USA

Full-time

Job Description Join Fortinet, a cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard people, devices, and data everywhere. We are currently seeking a Principal Software Developer Engineer for our FortiSwitch team. As a Principal Software Developer Engineer, you will: Develop and maintain software components on current and future products
Posted 60+ days ago | Updated moments ago

Principal AI/ML Engineer - State Estimation & Map Creation, Embodied AI

General Motors

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Mountain View, California, USA

Full-time

Job Description Hybrid: This role is categorized as hybrid. This means the successful candidate is expected to report three times per week , at minimum, to at least one of our Bay Area office s ( San Francisco, Mountain View, and Sunnyvale ) . Role: As a Technical Lead in State Estimation within the SEAM Embodied AI organization, you will be a senior individual contributor driving cutting-edge state estimation solutions that directly impact autonomous driving performance. Your role is pivotal
Posted 60+ days ago | Updated 9 hours ago

Principal Firmware Engineer

Aduril Industries

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Costa Mesa, 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 moments ago

R&D Principal Software Engineer - Security Response Engineering

Broadcom Corporation

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California, USA

Full-time

Please Note: 1. If you are a first time user, please create your candidate login account before you apply for a job. (Click Sign In > Create Account) 2. If you already have a Candidate Account, please Sign-In before you apply. Job Description: R&D Principal Software Engineer - Security Response Engineering The Elevator Pitch: Why will you enjoy this new opportunity? Broadcom VMware Cloud Foundation (VCF) products and services are trusted by various organizations for their mission critical s
Posted 60+ days ago | Updated moments ago

Sr. Principal Software 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 60+ days ago | Updated moments ago

Principal System and Electrical Engineer.

Thronus Group LLC

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Foster City, California, USA

Full-time

Title: Principal System and Electrical Engineer. Location: Foster City, CA. Duration: Full Time (Permanent Position) or 12+ Months Contract Position. MUST HAVE Need experience with SAE automotive systems into Siemens Capital tool experience and MUST have Min 10+ years wire harness experience in Auto industry.Role Summary: Leverage advanced Electrical Integration expertise to lead the definition and Validation of system-level electrical architectures at Client. This role is central to translati
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Posted 4 days ago

Senior/Principal Software Engineer, Data Engineering

Roblox

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San Mateo, California, USA

Full-time

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. At Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.We're on a mission to connect a billion people with op
Posted 60+ days ago | Updated moments ago

Principal Software Engineer - Machine Learning

Snowflake Inc.

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Menlo Park, California, USA

Full-time

Where Data Does More. Join the Snowflake team. Build the future of machine learning within Snowflake! We're building cutting-edge ML infrastructure and AI-powered agents to empower users to effortlessly build and deploy powerful models directly on their data. Join us to solve real-world ML challenges at scale and deliver a massive leap in ML developer experience. We aim to build highly integrated products that are simple, secure, scalable and enable end to end ML workflows. We deliver AI powere
Posted 60+ days ago | Updated moments ago

Principal Software Engineer - Platform

Aduril Industries

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Costa Mesa, 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 moments ago