principal engineer Jobs in california

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Principal, Software Engineer - Gen AI

Walmart Inc.

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Sunnyvale, California, USA

Full-time

Position Summary What you'll do Walmart Global Tech is at the forefront of AI innovation, leveraging cutting-edge technologies to redefine customer experiences. We are seeking a Principal, Software Engineer with deep expertise in Generative AI, LLMs, and RAG frameworks to lead the design, development, and deployment of advanced AI systems. This role involves architecting scalable solutions, integrating agentic frameworks, and mentoring engineering teams to push the boundaries of AI-driven inno
Posted 60+ days ago | Updated 1 hour ago

Principal Software Engineer, GenAI Data

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 1 hour ago

Principal Kernel Engineer

Request Technology, LLC

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Remote

Full-time

Principal Kernel Engineer Salary: Open + Bonus + Stock Options Location: Remote *We are unable to provide sponsorship for this role* Qualifications Writes high-quality multithread-safe code in C++ in both kernel-mode and user-modeDevelops high-quality code in Rust or a strong desire and capacity to learn quickly (Rust)Has shipped at least one production quality driver for Windows NTStrong knowledge of Win32 APIs and NT kernel internalsDebugs memory corruption issues and improves end-to-end syste
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Posted 60+ days ago | Updated 3 hours ago

Principal Validation 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 1 hour ago

Principal Software Engineer, Generative AI (R3373)

Shield AI Inc

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San Diego, California, USA

Full-time

Founded in 2015, Shield AI is a venture-backed defense technology company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices in San Diego, Dallas, Washington, D.C., Boston, Abu Dhabi (UAE), Kyiv (Ukraine), and Melbourne (Australia), Shield AI's technology actively supports U.S. and allied operations worldwide. For more information, visit Follow Sh
Posted 60+ days ago | Updated 1 hour ago

Principal Systems Engineer, DriveAV - Autonomous Vehicles

NVIDIA Corporation

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Santa Clara, California, USA

Full-time

NVIDIA has been transforming computer graphics, PC gaming, and accelerated computing for more than 25 years. It's a unique legacy of innovation that's fueled by great technology-and amazing people. Today, we're tapping into the unlimited potential of AI to define the next era of computing. An era in which our GPU acts as the brains of computers, robots, and self-driving cars that can understand the world. Doing what's never been done before takes vision, innovation, and the world's best talent.
Posted 10 days ago | Updated 1 hour ago

Senior/Lead/Principal Data Engineer

Salesforce

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San Francisco, California, USA

Full-time

To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts. Job Category Software Engineering Job Details About Salesforce We're Salesforce, the Customer Company, inspiring the future of business with AI+ Data +CRM. Leading with our core values, we help companies across every industry blaze new trails and connect with customers in a whole new way. And, we empower you to be a Trailblazer, too - driving you
Posted 14 days ago | Updated 13 hours ago

Principal Electronics Engineer (PCB Design/High Speed Digital/FPGAs)

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 10 days ago | Updated 1 hour ago

Principal Developer Technology Engineer

NVIDIA Corporation

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Santa Clara, California, USA

Full-time

We're currently seeking a Principal Developer Technology Engineer! Are you interested in developing techniques to accelerate large application workloads on advanced computer architectures? Do you find it rewarding to investigate, find, and eliminate system bottlenecks to achieve the best possible performance on state-of-the-art computer hardware? Could you be thrilled about an opportunity to partner with the developer community, working at the forefront of technology breakthroughs that contribut
Posted 60+ days ago | Updated 1 hour ago

Principal AI Engineer, Finance Systems

DocuSign Inc

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San Francisco, California, USA

Full-time

Company Overview Docusign brings agreements to life. Over 1.5 million customers and more than a billion people in over 180 countries use Docusign solutions to accelerate the process of doing business and simplify people's lives. With intelligent agreement management, Docusign unleashes business-critical data that is trapped inside of documents. Until now, these were disconnected from business systems of record, costing businesses time, money, and opportunity. Using Docusign's Intelligent Agreem
Posted 52 days ago | Updated 2 hours ago

Principal Software Engineer, Backend - Platform

Coinbase

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Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the
Posted 60+ days ago | Updated 1 hour ago

Principal Structural Engineer

Parsons Services Company

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Georgia, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at BCC Engineering, a Parsons Company. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: BCC Engineering, a Parsons company is looking for an amaz
Posted 20 days ago | Updated 1 hour ago

Principal Machine Learning Engineer - Image/Video/3D understanding

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 49 days ago | Updated 1 hour ago

Principal Software Engineer, Ads Infrastructure

Pinterest, Inc.

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Palo Alto, 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 1 hour ago

Principal Software Engineer - Engineering Systems

Snowflake Inc.

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Menlo Park, California, USA

Full-time

Where Data Does More. Join the Snowflake team. We're hiring a talented Principal Software Engineer to help us build a world class developer platform to fuel the Snowflake Data Cloud. As an engineering leader in the ES (Engineering Systems) team, you will play a central role in delivering the next generation of tools used by our engineers to develop our flagship product. Together with industry-wide experts in distributed systems, cross-cloud development and engineering excellence, you will evolv
Posted 60+ days ago | Updated 1 hour ago

Temporary, Sr. Principal, Embedded Software Engineer

Redwire Space

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San Jose, California, USA

Full-time

Join our San Jose, CA team, where cutting-edge innovation meets national security. As part of Redwire's recent acquisition of Hera Systems, this location focuses on advancing our capabilities in MEO, GEO, and hybrid space architectures, complementing our expertise in VLEO platforms. Together, we're unlocking new solutions to support the warfighter and address critical needs in National Security Space. Summary We are seeking a Temporary - Sr. Principal Embedded Software Engineer for an initial p
Posted 57 days ago | Updated 2 hours ago

Principal, Software Engineer - Conversational AI

Walmart Inc.

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Remote or Sunnyvale, California, USA

Full-time

Position Summary What you'll do Cortex Team is Walmarts core A.I. conversational platform, powering the vision of delivering the worlds best personal assistants to Walmarts customers, accessible via natural voice commands, text messages, rich UI interactions, and a mix of all of the above via multi-modal experiences. We believeconversationsare a natural and powerful user interface for interacting with technology and enable a richer customer experiences both online and in-store. We are building
Posted 60+ days ago | Updated 1 hour ago

Principal Systems Engineer (hybrid)

RTX Corporation

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Remote or Maryland, USA

Full-time

Date Posted: 2025-06-16 Country: United States of America Location: MD440: 8170 Maple Lawn Blvd Fulton MD 8170 Maple Lawn Boulevard , Fulton, MD, 20759 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 Solipsys, Managed by Collins Aerospace At Collins Aerospace, we're working side-by-side with our customers and partne
Posted 22 days ago | Updated 1 hour 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 50 days ago | Updated 1 hour ago

Principal Network Engineer-CCIE

Robert Half

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Remote or Albuquerque, New Mexico, USA

Full-time

Description Robert Half is seeking a Principal Network Engineer- CCIE required No Visa Employment sponsorship Must be authorized to work in the United States This role is predominantly remote but may require some onsite support and client site travel as needed. The Principal Network Engineer is the highest-level technical authority within the organization. This individual serves as both the final escalation point for Priority-1/2 incidents across all customers and the primary technical advis
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Posted 26 days ago | Updated 10 hours ago