Top Principal Software Engineer Jobs in San Francisco, CA

This role involves R&D in video streaming, designing algorithms, collaborating across teams, and leading innovative media projects. Requires expertise in video technologies and deep learning.

Lead enterprise architecture and design highly scalable, fault-tolerant distributed systems. Define standards for microservices, API governance, data architecture, observability, CI/CD, and reliability engineering. Drive modernization, performance tuning, incident response, and mentor senior engineers while partnering with leadership on technology roadmap and platform consolidation.

Lead architecture, implementation, and delivery of R&D platform infrastructure (cloud, Kubernetes, IaC). Provide technical leadership and mentorship, build AI-native developer tooling, partner with scientists to translate needs into production-grade platform capabilities.

Lead R&D for next-generation image and video coding using ML/AI. Design and implement video algorithms, codecs, and multimedia workflows, represent Disney in standards bodies, drive architectural innovation, and produce IP while collaborating globally across media processing, encoding, and streaming domains.

Lead R&D on next-generation image and video coding using ML/AI. Design and implement video algorithms, codecs, and multimedia workflows, represent Disney at standards bodies, drive IP generation, and collaborate globally to optimize media processing and streaming.

Build autonomous accounting agents and a ledger, integrate financial data providers, and ship daily product features using TypeScript/Next.js. Move quickly, make decisions, and iterate based on customer problems in a high-urgency, in-person startup.

The Principal Software Engineer will define architecture for high-performance infrastructure, optimize RL environments, and turn prototypes into scalable systems, while resolving technical challenges.

As a Principal Software Engineer, you will design and implement secure embedded finance products, enhance platform architecture, and integrate AI tools in a fast-paced fintech environment.

As a Principal Software Engineer, you'll lead technical initiatives, mentor engineers, and optimize DataRobot's AI infrastructure, focusing on designing scalable systems and collaborating cross-functionally.

Lead the design and implementation of high-performance PoP infrastructure, optimize networking software, and mentor engineering teams at Blue Origin.

Design and evolve perception architecture for autonomous products, integrating sensing technologies, and leading cross-functional teams on AI and performance metrics.

The Principal Software Engineer will lead technical initiatives, align cross-functional teams, establish standards, and guide multiple engineering teams towards strategic objectives, driving large-scale improvements in business outcomes.

The Staff/Principal Software Engineer will work in a remote global team, addressing software engineering challenges while fostering collaboration and clear communication.

Design, develop, and maintain scalable software solutions. Collaborate with teams to troubleshoot issues and enhance the software delivery lifecycle. Focus on backend services, using Java and various tools for performance optimization.

Design and develop scalable features for secure software. Advocate for quality standards and engage with customers. Work remotely with a focus on product improvement.

The role involves designing and developing secure software solutions, focusing on innovative sensor technology for Linux environments, and enhancing customer adoption through collaboration.

The Principal Software Engineer will build systems for safe software deployment, enhance developer frameworks, and ensure reliability in code delivery.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.

The Principal Software Engineer leads technical standards and product design in a collaborative hybrid environment, focusing on complex software solutions, cloud services, and mentoring teams.

The Principal Machine Learning Engineer will design and scale ML systems for personalization and search, mentor engineers, and lead major ML initiatives at Fetch.

As a Principal Software Engineer at Fetch, you'll design scalable systems for user engagement, drive experimentation, lead technical strategy, and mentor teams to improve engineering productivity and system reliability.

The Principal Software Engineer will lead the Databricks platform on AWS, managing administration, design, security, and user enablement while mentoring a team.

Hands-on principal software engineer building and maintaining data pipelines, multi-language SDKs, and integrations; ensure schema compliance, troubleshoot transport and format issues, collaborate on secure DevSecOps CI/CD deployments, mentor engineers, and deliver in Agile/Scrum.

Technical individual-contributor leader designing and architecting cloud-native, microservices-based payment systems. Partners with product, mentors engineers, drives CI/CD, automated testing, and operational readiness while ensuring security, scalability, and cross-functional alignment within FinTech.

Lead design and implementation of Replit's money infrastructure, focusing on pricing, billing, payments, and monetization while ensuring reliability and user-friendly experiences.