• Carollo Engineers (Walnut Creek, CA)
    …design, and construction of water and wastewater facilities. We are seeking a Principal Wastewater Process Engineer to lead innovative process design efforts, ... and QA/QC. + Ability to supervise team of several subordinates of project engineer or senior project engineer level with multiple engineering or professional… more
    DirectEmployers Association (11/14/25)
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  • DataRobot (San Francisco, CA)
    …AI that makes sense for their business - today and in the future. As a Principal Software Engineer for Generative AI at DataRobot, you will be the technical ... generative outputs. + Drive operational excellence by improving observability, reliability, and performance of AI systems in production. 3. Leadership & Mentorship +… more
    DirectEmployers Association (10/09/25)
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  • Zscaler (San Jose, CA)
    …to harness speed and agility with a cloud-first strategy._ We are hiring a Principal Software Development Engineer to join our Central Authority team. You will ... of FreeBSD or Linux systems internals + Strong fundamentals: high- performance computing, distributed systems, event-based programming, memory optimization, fault… more
    DirectEmployers Association (10/01/25)
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  • Zscaler (San Jose, CA)
    …to Zscaler and help shape the future of cybersecurity. We're looking for a Senior Principal Software Development Engineer to join our ZIA Cloud team. You will ... FW/SWG solutions integrate with or extend these native services + Performance & Scalability: Proven experience in designing, optimizing, and troubleshooting… more
    DirectEmployers Association (09/05/25)
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  • Zscaler (San Jose, CA)
    …to harness speed and agility with a cloud-first strategy. We're looking for a Principal Software Engineer to join our platform convergence team. This is a ... Engineering, you'll be responsible for: + Designing and implementing scalable, high- performance backend services and APIs using Go, integrating with databases like… more
    DirectEmployers Association (09/30/25)
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  • Principal Performance

    Zoom (San Jose, CA)
    …for this position What you can expectZoom is seeking a highly experienced and impactful Principal Performance Engineer to join our DevOps/SRE team. In this ... you will be responsible for driving the optimization of backend service performance across Zoom's expansive platform. You will work closely with development teams,… more
    Zoom (11/15/25)
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  • Senior Principal Mechanical Engineer

    Genentech (South San Francisco, CA)
    …and driving change when performance does not meet expectations. + The Senior Principal Mechanical Engineer will also be the SSF site expert on industry ... **The Position** As a Senior Principal Mechanical Engineer at Genentech, you'll...adopting technologies and delivery approaches which improve building systems performance , cost effectiveness, and reliability. + This role will… more
    Genentech (10/14/25)
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  • Principal /Senior Principal Software…

    Genentech (South San Francisco, CA)
    …field, or equivalent experience and 7+ years of experience in software engineering ( Principal Software Engineer ); 12+ years of experience (Sr. Principal ... the primary location of California is $162,600 - $302,000 ( Principal Software Engineer ) and $189,200 - $351,400...bonus may be available based on individual and Company performance . This position also qualifies for the benefits detailed… more
    Genentech (09/06/25)
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  • Principal Information Systems…

    City and County of San Francisco (San Francisco, CA)
    …minimum qualifications. Application Deadline: Continuous How to Apply: Applications for Principal Information Systems Engineer - Applications Specialty are only ... that integrate these systems together as an enterprise networking backbone. The 1044 Principal Applications Engineer is the highest level in the Engineer more
    City and County of San Francisco (11/07/25)
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  • Principal Information Systems…

    City and County of San Francisco (San Francisco, CA)
    …the minimum qualifications. Application Deadline: Continuous How to Apply: Applications for Principal Information Systems Engineer - Systems Specialty are only ... as an enterprise networking backbone or platform. The 1044 Principal Systems Engineer is the highest level...complex systems or networks. Essential Duties: 1. Oversees the performance of day-to-day operational support for server, storage or… more
    City and County of San Francisco (11/07/25)
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  • Principal Information Systems…

    City and County of San Francisco (San Francisco, CA)
    …the minimum qualifications. Application Deadline: Continuous How to Apply: Applications for Principal Information Systems Engineer - Networks Specialty are only ... that integrate these systems together as an enterprise networking backbone. The 1044 Principal Networks Engineer is the highest level in the Engineer more
    City and County of San Francisco (11/07/25)
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  • Principal Information Systems…

    City and County of San Francisco (San Francisco, CA)
    …the minimum qualifications. Application Deadline: Continuous How to Apply: Applications for Principal Information Systems Engineer - Security Specialty are only ... that integrate these systems together as an enterprise networking backbone. The 1044 Principal Security Engineer is the highest level in the Engineer more
    City and County of San Francisco (11/07/25)
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  • Principal Human Factors Engineer

    Genentech (South San Francisco, CA)
    …with the people we love. That's what makes us Roche! **The Opportunity** The Principal Human Factors Engineer will be responsible for providing human factors ... use environment, and the drug therapy being delivered. The Principal Human Factors Engineer has strong experience...bonus may be available based on individual and Company performance . This position also qualifies for the benefits detailed… more
    Genentech (11/11/25)
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  • Senior/ Principal Software Engineer

    Genentech (South San Francisco, CA)
    …4+ years of professional experience in backend or data engineering roles(Senior Software Engineer ) ; 7+ ( Principal Software Engineer ). + Excellent ... position based on the primary location of California $142,500-264,700 (Senior Software Engineer ) and $162,600-302,000 ( Principal Software Engineer ). Actual… more
    Genentech (09/06/25)
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  • Principal Staff Software Engineer

    LinkedIn (Mountain View, CA)
    …that power the visibility, cost attribution and planning of LinkedIn Infrastructure. As a Principal Engineer , they will mentor team members, uphold a high bar ... Responsibilities + We take an engineering-first approach to elevate infrastructure. As a Principal Engineer , you'll be driving the strategy to reduce the total… more
    LinkedIn (09/30/25)
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  • Principal Machine Learning Engineer

    Genentech (South San Francisco, CA)
    …a thriving culture built on collaboration and innovation. **Job Summary** The ** Principal Machine Learning Engineer ** leads the strategic design and development ... cross-functional teams to integrate these models into existing systems. The Principal Machine Learning Engineer writes scalable, production-ready code, ensures… more
    Genentech (10/23/25)
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  • Senior/ Principal Software Engineer

    Genentech (South San Francisco, CA)
    …and 4+ years of professional experience in full-stack software development (Senior Software Engineer ); 7+ years ( Principal Software Engineer ). + Strong ... position based on the primary location of California $142,500-264,700 (Senior Software Engineer ) and $162,600-302,000 ( Principal Software Engineer ). Actual… more
    Genentech (09/06/25)
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  • Principal Software Engineer

    Microsoft Corporation (Mountain View, CA)
    …major Microsoft products, including Office, Windows, Bing, SQL Server, and Dynamics. As a Principal Software Engineer on the team, you will have the opportunity ... The Artificial Intelligence Performance team at Microsoft develops AI software that...remote locations considered for strong candidates. **Responsibilities** As a Principal Software Engineer on the team the… more
    Microsoft Corporation (10/28/25)
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  • Principal Staff Software Engineer

    LinkedIn (Mountain View, CA)
    …take an engineering-first approach to elevate infrastructure operations and reliability. As a Principal Engineer , you'll be driving the strategy to bring down ... that integrate seamlessly across the entire platform. As a Principal Staff Software Engineer , you will serve...and best practices for managing and optimizing large-scale infrastructure performance and help define our strategy and roadmap to… more
    LinkedIn (11/13/25)
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  • Principal Network Engineer

    LTD Global (Livermore, CA)
    …growth through philanthropic initiatives and community engagement. Position Overview The Principal Network Engineer will design, implement, and manage complex ... network design for multi-datacenter environments, including hybrid Azure Cloud solutions. As the Principal Network Engineer , you will play a key role in ensuring… more
    LTD Global (10/31/25)
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