Top Principal Software Engineer Jobs in San Francisco, CA

The Principal Software Engineer will architect and build platform features, lead technical discussions, mentor engineers, engage with stakeholders, and innovate on core services to drive technical impact for FloQast applications.

Lead the development and implementation of AI agents for financial guidance. Define technical strategies, mentor engineers, and ensure compliance with industry standards.

The Principal Software Engineer will design and implement systems for the advertiser experiences at Snap, lead technical vision, mentor engineers, and innovate on creator marketplace products.

Lead the technical strategy for developer tools in a financial services company, focusing on AI-enabled development practices. Responsibilities include architectural design, mentorship, and driving innovation in software development.

The Principal Software Engineer will lead the financial systems architecture, mentor senior engineers, and refine the technical roadmap, ensuring accounting-grade correctness across the platform.

As a Principal Software Engineer, you will architect and develop virtualization technology for vehicle testing, mentor teams, and enhance code quality across GM products.

The Principal Software Engineer will set technical direction, own cross-team initiatives, evolve platform architecture, and lead experimentation efforts while mentoring others in the Personal Loans team.

The role involves providing AI leadership, influencing technical direction, driving innovation, mentoring engineers, and collaborating across teams to adopt AI in software development.

Lead technical strategy for Dropbox's core systems and AI integration, drive technical outcomes, and influence multiple teams. Involve hands-on software development and architecture for scalable products.

As a Principal Software Engineer, you will design, develop, and implement complex software solutions, lead projects, and ensure compliance with standards in a cloud-first environment.

The Principal Software Engineer will tackle platform-level challenges, assist team members, write secure and scalable code, and develop features for cloud storage solutions.

The Principal Software Engineer will lead AI automation efforts at Coinbase, designing AI-driven systems, mentoring teams, and solving complex AI challenges to improve operations and developer productivity.

The Principal Software Engineer leads technical initiatives across GM's Digital Products, focusing on high-quality coding, architecture, mentoring engineers, and improving processes. The role requires guiding teams in delivering impactful solutions and sharing best practices.

The Principal Software Engineer will lead the technical direction for Platform-as-a-Service at DigitalOcean by designing scalable systems, mentoring engineers, and collaborating across teams to enhance developer experience and platform performance.

The Principal Software Engineer will define, architect, and develop gameplay features in Unity and C#. The role involves optimizing performance, collaborating with other engineers, and mentoring team members.

Lead technical vision and execution for enterprise-scale AI, automation, and data initiatives. Architect scalable, secure AI systems and data pipelines, mentor engineers, drive cross-functional alignment, and deliver high-impact production solutions that improve productivity and business outcomes.

The Principal Software Engineer will lead teams in developing full-stack applications, enhance services, drive architectural discussions, and mentor other engineers.

The Principal Software Engineer will architect and lead the development of scalable systems, drive technical excellence, mentor teams, and promote best practices at a fintech company.

Lead the design and operation of the Gradient AI platform, focusing on scalability, performance, and innovation in agent development. Mentor engineers and collaborate across teams to deliver strategic technical roadmaps and enhance operational excellence.

As a Principal Software Engineer on the SRE team, lead best practices adoption, mentor engineers, and improve system reliability and user experience through automation and collaboration.

As a Principal Software Engineer, you'll architect and code backend services and ML models, integrate them with Salesforce, and mentor junior engineers.

As a Principal Software Engineer, you will lead the development and architecture of Upstart's Core GenAI Platform, ensuring technical excellence and cross-team collaboration while mentoring junior engineers and influencing business strategy.

The role involves building and optimizing a machine learning and simulation platform, supporting MLOps, model deployment, and infrastructure modernization, while mentoring engineers.

The Principal Software Engineer will define technical roadmaps, guide system architecture, mentor leaders, and drive product direction in Capital Supply operations.

Lead the development and optimization of Crunchyroll's client applications for performance and scalability, mentoring engineers and ensuring quality through best practices.