Tech jobs › Machine Learning Engineer Jobs › Principal Machine Learning Engineer Jobs in California Principal Machine Learning Engineer Jobs in California 163 open Principal Machine Learning Engineer jobs in California at 66 companies, including Amazon, Snap and Mastercard. Updated daily from company career pages.
Amazon Amazon is an e-commerce website for consumers, sellers, and content creators.
Principal Applied Scientist, CX Science Santa Clara, California · $228,700 - $309,400 USD Principal Applied Scientist- Agentic RL , Kiro Santa Clara, California · $309,400.00 - $309,400.00 USD Principal Applied Scientist, Ads Optimization, Full Funnel Agentic Intelligence and Models Palo Alto, California · $198,900.00 - $309,400.00 USD Principal Applied Scientist, Music Catalog and Search, Amazon Music Search and Catalog San Francisco, California · $228,700.00 - $309,400.00 USD Principal Applied Scientist, Sponsored Products and Brands Palo Alto, California · $198,900.00 - $309,400.00 USD 2 more open roles at Amazon
Snap Snap operates as a privately-owned global camera company focusing on multinational technology and social media.
Mastercard Mastercard is a technology company in the payments industry.
Cisco Cisco develops, manufactures, and sells networking hardware, telecommunications equipment, and other technology services and products.
Principal Machine Learning Engineer, AISWP (Hybrid) San Jose, California · $296,300.00 - $431,000.00 Distinguished Machine Learning Engineer, AISWP (Hybrid) San Jose, California · $342,700.00 - $498,400.00 Principal Software Engineer – Application Security & AI Trust Architecture San Jose, California · $233,900.00 - $330,400.00 USD Distinguished Software Engineer, AI Software & Platform (Hybrid) Milpitas, California · $293,900.00 - $467,900.00 Architect – AI / Agentic Automation San Jose, California · $186,900.00 - $307,800.00 Oracle Senior Principal Data Center Delivery Technical PM Deployment & Integration (AI Infrastructure / GPU) Los Angeles, California · $126,200 - $264,100 USD Principal Machine Learning Engineer Santa Clara, California · $126,200 - $264,100 USD Principal Applied Scientist Santa Clara, California · $126,200 - $264,100 USD Lead Principal Applied Scientist Santa Clara, California · $158,300 - $355,400 USD Principal Applied Scientist - Robotics Santa Clara, California · $126,200 - $264,100 USD 1 more open roles at Oracle
eBay eBay is an online marketplace that connects a global network of buyers and sellers.
Palo Alto Networks Senior Principal Software Engineer (AI Posture) Headquarters, California · $183,600.00 - $297,000.00 USD Principal Machine Learning Engineer (Prisma AIRS) Headquarters, California · $163,200.00 - $264,000.00 USD Principal Machine Learning Engineer Headquarters, California · $163,200.00 - $264,000.00 USD Principal AI Tool Engineer for Software Automation/Testing Headquarters, California · $156,400.00 - $253,000.00/yr Distinguished Engineer - AI-First Transformation Headquarters, California · $266,200.00 - $365,400.00 USD 7 more open roles at Palo Alto Networks
Anthropic Anthropic is an AI safety and research company that focuses on increasing the safety of large-scale AI systems.
Applied AI Architect, Beneficial Deployments (Life Sciences Community & Enablement) San Francisco, California · $275,000 - $315,000 USD Applied AI Architect, International Policy San Francisco, California · $240,000 - $315,000 USD Applied AI Architect, Cyber San Francisco, California · $240,000 - $315,000 USD Applied AI Architect, Startups San Francisco, California · $240,000 - $315,000 USD Applied AI Architect, Strategic Enterprise Tech San Francisco, California · $240,000 - $315,000 USD 3 more open roles at Anthropic
Atlassian 4 more open roles at Atlassian
Riot Games Riot Games is a global company that develops online games.
Hewlett Packard Enterprise Hewlett Packard Enterprise is an edge-to-cloud company that uses comprehensive solutions to accelerate business outcomes.
Principal AI and Machine Learning Engineer Sunnyvale, California · $172,000 - $349,000 USD Sr. AI Architect - Enterprise (US) All, California · $183,000 - $378,000 USD Senior Principal Presales Systems Engineer, Cloud and AI Networking San Jose, California · $221,000 - $456,500 USD Oura Oura is a health technology company that makes and designs wellness wearable rings to track and improve sleep and performance.
Replit Replit is a browser-based integrated development environment for cross-platform collaborative coding.
Qualcomm Qualcomm designs, manufactures, and markets digital wireless telecommunications products and services.
9 more open roles at Qualcomm
Midjourney Midjourney is a non-profit research lab that is investigating new thought mediums to improve the human species' inventive abilities.
JP Morgan Chase JP Morgan Chase is a global financial services provider that offers investment banking, asset management, treasury, and other services.
2 more open roles at JP Morgan Chase
Igneous Igneous offers an unstructured data management solution giving data-centric enterprises visibility, protection, and data mobility at scale.
Thrive Market Thrive Market is a membership-based online company that offers natural and organic food products.
Machine Learning Engineer jobs in other locations Other jobs in California Machine Learning Engineer jobs by seniority Remote Updated 2026-10-11.