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Principal Systems Engineer Jobs in California

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Principal Java Engineer - Distributed Systems, Serverless Elastic

San Jose, CA

Leveraging your deep distributed systems expertise to design, build, and operate core pieces of our next-generation Serverless Elasticsearch offering, directly impacting the experience of customers worldwide. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

12 days ago

Principal Engineer, Product Validation Jobot

Santa Clara, CA

$148,000–$200,000 / year
Quick Apply

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our semiconductor MEMS programmable solutions offer a rich feature set that enables customers to differentiate their products with higher performance, smaller size, lower power, and better reliability.

4 days ago

Principal Silicon Engineer - System Modeling Microsoft

Mountain View, CA

$142,800–$274,800 / year

There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year. To achieve this goal, the Interface IP Team team is instrumental in defining and delivering operational measures of success for hardware manufacturing, improving the planning process, quality, delivery, scale and sustainability related to Microsoft cloud hardware.

12 days ago

Senior Principal AI Systems Architect Census

Oakland, CA

$251,835–$314,794 / year

Together, we’re delivering the data infrastructure layer that helps organizations move, transform, and trust their data — from the moment data moves, through every transformation, to the context teams and AI systems rely on. • Access to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching, and self-guided mindfulness exercises for all covered employees and their covered dependents.

12 days ago

Sr. MS 365 Systems Engineer / Architect Ekman Associates, Inc

Irvine

Full time
Quick Apply

The ideal candidate is an expert in cloud architecture who can evaluate our existing tenant, enforce zero-trust security controls, optimize modern device management via Intune, and implement thorough compliance policies. Endpoint Management & Cloud Deployment Design and deploy enterprise configuration, compliance, and application protection profiles within Microsoft Intune across Windows, macOS, and mobile operating systems.

2 days ago

Principal Electrical Engineer - (Aerospace) Nesco Resource, LLC

Torrance, CA

Quick Apply

As a Principal Electrical Engineer, you have the unique opportunity to lead pioneering electrical engineering projects in the exciting realms of electric aircraft and eVTOL (electric Vertical Take-Off and Landing) systems. Reporting directly to our Engineering Program Manager, you'll be based in our vibrant Torrance, California or Tempe Arizona locations, embracing a hybrid work schedule that balances flexibility and teamwork.

3 days ago

Structural Principal Engineer Cannon Corp

Irvine, CA

$113,000–$175,000 / year

This role oversees structural design, prepares engineering analyses and reports, and ensures the successful execution of projects from concept through construction. SINCE 1976, CANNON has provided creative solutions to clients in the energy industry, water resources, public infrastructure, and commercial and residential development.

9 days ago

Principal Staff Engineer, AI Platform Research, Data Science (Remote) Crowdstrike

Sunnyvale, CA

Remote

$195,000–$290,000 / year

Architect, implement, and optimize data platforms and pipelines specifically designed to support LLMs, Neural Networks, Retrieval-Augmented Generation (RAG), and sophisticated AI agentic systems at Exabyte scale. You will champion by hands on executing engineering excellence, focusing on shipping fast, writing elegant, high-quality code, and actively mentoring and strengthening the team's technical knowledge and capabilities.

5 days ago

Principal Hardware Engineer, DC/DC Power Microsoft

Mountain View, CA

$142,800–$274,800 / year

Doctorate in Electrical Engineering, Computer Engineering, or related field AND 3+ years technical engineering experience OR Masters Degree in Electrical Engineering, Computer Engineering, or related field AND 6+ years technical engineering experience. To achieve this goal, the CHSE (Cloud Hardware Systems Engineering) team is instrumental in defining and delivering operational measures of success for hardware manufacturing, improving the planning process, quality, delivery, scale and sustainability related to Microsoft cloud hardware.

12 days ago

Principal Software Engineer - Search Infra Elastic

San Jose, CA

This role provides technical vision and direction for Elasticsearch’s core search infrastructure, including indexing, retrieval, and relevance, and requires deep expertise in search internals and cross-team collaboration. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

12 days ago

Principal Software Engineer - Growth (CoreAI) Microsoft

Mountain View, CA

$165,600–$296,400 / year

At this level, impact comes from building repeatable systems and raising the engineering bar: better experiment quality, better telemetry, safer rollouts, and clearer business outcomes — delivered through pragmatic execution and deep technical judgment. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $220,800 - $331,200 per year.

12 days ago

Principal Software Engineer - GitHub Platform & Enterprise Microsoft

Mountain View, CA

$165,600–$296,400 / year

Champion security across GitHub Actions by designing and implementing isolation mechanisms for untrusted code execution, ensuring compliance with enterprise security requirements, and partnering with Security teams to protect against vulnerabilities in our services. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $220,800 - $331,200 per year.

12 days ago

Principal Software Engineer eGain Corporation

Sunnyvale, CA

As a Principal Software Engineer in our Engineering team, you will architect and build AI-powered services that ship to some of the world’s largest enterprises, set the technical patterns the rest of the org builds on, and lead the adoption of AI-assisted development workflows across the team. Trusted by the world’s most customer-centric companies, eGain’s platform combines the power of generative AI with structured, curated enterprise knowledge to deliver accurate, consistent, and compliant answers across every customer touchpoint.

12 days ago

Principal Software Engineer Census

Oakland, CA

$225,813–$282,266 / year

Together, we’re delivering the data infrastructure layer that helps organizations move, transform, and trust their data — from the moment data moves, through every transformation, to the context teams and AI systems rely on. You will operate at the intersection of architecture, execution, and organizational influence — solving deeply complex distributed systems challenges while shaping engineering direction across multiple teams.

12 days ago

Principal Software Engineer, AI Tooling & Adoption Census

Oakland, CA

$225,813–$282,266 / year

Together, we’re delivering the data infrastructure layer that helps organizations move, transform, and trust their data — from the moment data moves, through every transformation, to the context teams and AI systems rely on. As the single point of contact for AI initiatives in Engineering, you will orchestrate an engineering-wide transformation that makes AI-driven productivity a core engineering competency.

12 days ago

Principal Software Engineer - Search Algorithms Elastic

San Diego, CA

This is a principal software engineering role that focuses on enhancing the vector similarity search functionality within Elasticsearch, covering the design and implementation of new vector search features, enhancements to existing vector search functionality, and resolving bugs. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

12 days ago

Principal Software Engineer - Vector Search Elastic

San Jose, CA

12 days ago

Principal Software Engineer, Full Stack Tableau Software

San Francisco, CA

In addition to Events Technology, you will play a part in other public web experiences including www.tableau.com, www.mulesoft.com, and "role based" sites such as the developer, admin, and architect subdomains of Salesforce.com. Our industry-leading platforms and solutions help connect target audiences to the content they need, when and where they need it — making it as easy as possible for them to learn how to use Salesforce products and drive business growth.

12 days ago

Principal Software Engineer Microsoft

Mountain View, CA

$142,800–$274,800 / year

Bachelors Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python Masters Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. More broadly, OCTO leads investments in emerging technical bets, provides technical insights, and drives high-priority company-wide AI initiatives, while partnering closely with engineering, research, and product teams.

12 days ago

Principal Software Engineer - Performance Tuning Elastic

San Diego, CA

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. This includes deep experience with benchmarking tools (e.g., flamegraphs, JMH, Rally), identifying performance regressions, and implementing algorithmic or hardware-aware optimizations.

12 days ago

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Principal Systems Engineer Jobs in California

Principal Java Engineer - Distributed Systems, Serverless Elastic

Principal Engineer, Product Validation Jobot

Principal Silicon Engineer - System Modeling Microsoft

Senior Principal AI Systems Architect Census

Sr. MS 365 Systems Engineer / Architect Ekman Associates, Inc

Principal Electrical Engineer - (Aerospace) Nesco Resource, LLC

Structural Principal Engineer Cannon Corp

Principal Staff Engineer, AI Platform Research, Data Science (Remote) Crowdstrike

Principal Hardware Engineer, DC/DC Power Microsoft

Principal Software Engineer - Search Infra Elastic

Principal Software Engineer - Growth (CoreAI) Microsoft

Principal Software Engineer - GitHub Platform & Enterprise Microsoft

Principal Software Engineer eGain Corporation

Principal Software Engineer Census

Principal Software Engineer, AI Tooling & Adoption Census

Principal Software Engineer - Search Algorithms Elastic

Principal Software Engineer - Vector Search Elastic

Principal Software Engineer, Full Stack Tableau Software

Principal Software Engineer Microsoft

Principal Software Engineer - Performance Tuning Elastic

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