Principal, Software Engineer Jobs in California

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Principal Software Engineer, ArsenalOS (Forge 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 4 hours ago

Principal Software Engineer

Oracle Corporation

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Santa Clara, California, USA

Full-time

Job Description Oracle Cloud Infrastructure (OCI) is looking for a Principal Software Engineer to lead the development of scalable, resilient, and secure infrastructure systems that underpin the core of OCI's compute platform. This role sits within the Host Provisioning Services (HoPS) team, which owns the critical infrastructure responsible for automating the full server lifecycle from rack integration and hardware bring-up to customer-ready instance provisioning and firmware management. HoPS
Posted 16 days ago | Updated 5 hours ago

Principal Software Engineer in Cloud

PaloAlto Networks

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Santa Clara, California, USA

Full-time

Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. We have the vision of a world where each day is safer and more secure than the one before. These aren't easy goals to accomplish - but we're not here for easy. We're here for better. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as co
Posted 60+ days ago | Updated 5 hours ago

Principal Software Engineer - Embedded Systems

ConsultNet, LLC

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Hawthorne, California, USA

Full-time

Principal Software Engineer - Embedded Systems El Segundo area, CA Direct Hire $130k-$170k year Looking for an engineer to bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, embedded systems and networking. Role will focus on principal software engineering in the design and development of embedded systems. Define and implement scalable, modular, and maintainable embedded software architectures. Guide teams in developing firmware
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Posted 40 days ago | Updated 5 hours ago

Principal Software Engineer - AI-Driven Next-Gen Analytics Platform

Oracle Corporation

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Pleasanton, California, USA

Full-time

Job Description We are seeking a seasoned software developer with deep expertise in C++ programming, database internals, distributed systems, and cloud-native development, with a strong focus on AI-first architecture and intelligent analytics. As Oracle Analytics evolves into a next-generation, AI-powered platform, we are reimagining how business users interact with their data-making experiences more automated, conversational, and predictive. The ideal candidate will play a pivotal role in bui
Posted 38 days ago | Updated 5 hours ago

Principal Software Engineer - Cloud Engineering (Remote)

Publix

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Remote or Lakeland, Florida, USA

Full-time

Publix Super Markets, Inc. is the largest privately-owned food retailer in the nation with more than 1,200 stores and more than 200,000 associates throughout the Southeast. We are associate-owned, proud of our family atmosphere, and consistently named as one of the best companies to work for in America. We are largely debt-free and renowned for our financial performance as well as our premier customer service. Publix?s Information Services (I/S) department is located in Lakeland, Florida and Alp
Posted 19 days ago | Updated 2 hours ago

Principal Software Engineer - AI Infrastructure, OCI

Oracle Corporation

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Santa Clara, California, USA

Full-time

Job Description This position supports the design, deployment, and operations of a large-scale global Oracle Cloud Infrastructure (OCI) with a focus on application performance in relationship to network design and configuration. The role combines (i) understanding of networking at the protocol level, (ii) programming skills, and () skill in benchmarking and analyzing the performance of extreme-scale distributed computing systems. Why Join Us? Innovative Projects: Build groundbreaking solutions
Posted 60+ days ago | Updated 5 hours ago

Principal Software Engineer / Ruby

Decisiv

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Remote

Full-time

REMOTE Position Decisiv is seeking a Principal Software Engineer to lead the architecture, scalability, and interoperability of our growing platform. As technology landscapes shift, our platform must evolve to handle increasing data demands, automation, and intelligent decision-making while maintaining reliability and flexibility. As a Principal Engineer, you will define long-term technical strategy, guide cross-team architecture, and mentor engineers, ensuring our platform continues to adapt to
Posted 23 days ago | Updated 23 days ago

Senior Principal Software Engineer (SD Branch Platform Module)

PaloAlto Networks

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Santa Clara, California, USA

Full-time

Description At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. We are a company built on the foundation of challenging and disrupting the way things are done, and we are looking for innovators who are as committed to shaping the future of cybersecurity as we are. Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our
Posted 60+ days ago | Updated 5 hours ago

Principal Software Engineer - Virtual Cloud Networking DataPlane

Oracle Corporation

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Remote

Full-time

Job Description At Oracle Cloud Infrastructure (OCI), we build the future of the cloud for Enterprises as a diverse team of fellow creators and inventors. We act with the speed and attitude of a start-up, with the scale and customer-focus of the leading enterprise software company in the world. Values are OCI's foundation and how we deliver excellence. We strive for equity, inclusion, and respect for all. We are committed to the greater good in our products and our actions. We are constantly le
Posted 46 days ago | Updated 5 hours ago

Principal Software Engineer

AFLAC

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Remote

Full-time

Salary Range: $110,000 - $169,000 Job Posting End Date: 8/4/25 We've Got You Under Our Wing We are the duck. We develop and empower our people, cultivate relationships, give back to our community, and celebrate every success along the way. We do it all The Aflac Way . Aflac, a Fortune 500 company, is an industry leader in voluntary insurance products that pay cash directly to policyholders and one of America's best-known brands. Aflac has been recognized as Fortune's 50 Best Workplaces for Dive
Posted 60+ days ago | Updated 2 hours ago

Principal Software Engineer - Virtual Cloud Networking Dataplane

Oracle Corporation

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Remote

Full-time

Job Description At Oracle Cloud Infrastructure (OCI), we build the future of the cloud for Enterprises as a diverse team of fellow creators and inventors. We act with the speed and attitude of a start-up, with the scale and customer-focus of the leading enterprise software company in the world. Values are OCI's foundation and how we deliver excellence. We strive for equity, inclusion, and respect for all. We are committed to the greater good in our products and our actions. We are constantly l
Posted 60+ days ago | Updated 5 hours ago

Principal Software Engineer – Platform (Hybrid | Southern California)

Vaco by Highspring

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Carlsbad, California, USA

Full-time

Were looking for a Principal Software Engineer to help drive the architecture and evolution of a cutting-edge platform that powers a suite of connected digital experiences spanning hardware, mobile, and cloud. This is a hands-on leadership role where youll collaborate cross-functionally, balance technical vision with real-world priorities, and shape the infrastructure that supports thousands of users. If you're passionate about building scalable systems and mentoring engineers while working in
Easy Apply
Posted 14 days ago

Frontend Principal Software Engineer

GCS

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Remote

Contract

We re looking for a skilled Frontend Engineer (can be 100% remote) with strong Angular experience to join the team behind a leading vendor-agnostic, enterprise-grade broadband network monitoring and optimization platform. Used by top-tier global operators, this suite helps monitor and enhance DOCSIS and fiber network performance across millions of connected devices. This is a hands-on engineering role focused on building scalable, reusable UI components and powerful data visualizations that enab
Easy Apply
Posted 8 days ago

Principal Software Engineer - REMOTE

DriveTime

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Remote or Tempe, Arizona, USA

Full-time

What's Under the Hood DriveTime Family of Brands is the largest privately owned used car sales finance & servicing company in the nation. Headquartered in Tempe, Arizona and Dallas, Texas, we create opportunities and improve the lives of our customers and our employees by placing a focus on putting the right customer, in the right vehicle, on the right terms and on their path to ownership. The DriveTime Family of Brands spans across DriveTime, Bridgecrest and SilverRock. You can find us at th
Posted 60+ days ago | Updated 2 hours ago

Principal Software Engineer

CVS Health

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Remote or Woonsocket, Rhode Island, USA

Full-time

At CVS Health, we're building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care. As the nation's leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues - caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all w
Posted 1 day ago | Updated 5 hours ago

(USA) Principal, Software Engineer

Walmart Inc.

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Remote or Bentonville, Arkansas, USA

Full-time

Position Summary What you'll do About the Role: We are looking for a Principal Software Engineer who is an architect-level expert in Python, with a deep mastery of LLM-driven systems, agentic architectures, and scalable intelligent automation. This is a pivotal role where you'll define the technical strategy, influence architecture across domains, and lead the creation of next-gen AI-driven platforms that move beyond prompt engineering into modular reasoning systems. This role isn't about bu
Posted 4 hours ago

Principal Software Engineer - Warehouse Management Systems

CVS Health

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Rhode Island, USA

Full-time

At CVS Health, we're building a world of health around every consumer and surrounding ourselves with dedicated colleagues who are passionate about transforming health care. As the nation's leading health solutions company, we reach millions of Americans through our local presence, digital channels and more than 300,000 purpose-driven colleagues - caring for people where, when and how they choose in a way that is uniquely more connected, more convenient and more compassionate. And we do it all w
Posted 1 day ago | Updated 5 hours ago

Principal Software Engineer

Amgen Inc

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Remote or Thousand Oaks, California, USA

Full-time

Career Category Information Systems Job Description Join Amgen's Mission of Serving Patients At Amgen, if you feel like you're part of something bigger, it's because you are. Our shared mission-to serve patients living with serious illnesses-drives all that we do. Since 1980, we've helped pioneer the world of biotech in our fight against the world's toughest diseases. With our focus on four therapeutic areas -Oncology, Inflammation, General Medicine, and Rare Disease- we reach millions of pati
Posted 13 days ago | Updated 5 hours ago

(USA) Principal, Software Engineer

Walmart Inc.

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Remote or Bellevue, Washington, USA

Full-time

Position Summary What you'll do **Immigration sponsorship is not available in this role** Join our innovative and dynamic People Technology engineering team as a Principal Software Engineer. In this role, you'll play a crucial part in designing, developing, and implementing digital solutions that address mission-critical business challenges, supporting Walmart associates. Your projects will make a significant impact, be scalable, and drive Walmart's modernization efforts in the People Technol
Posted 8 days ago | Updated 4 hours ago