Top Principal Software Engineer Jobs in San Francisco, CA

Design and develop scalable software systems and solutions for mobile apps in a clinical setting. Lead projects, mentor engineers, and improve architecture.

The Principal Software Engineer will build secure platform products, write robust Java code, understand customer needs, and document solutions.

Lead the development of AI-driven software systems, collaborating with diverse teams to create applications and mentor junior engineers.

As a Principal Full-stack Engineer, you'll design and build AI-driven systems, APIs, and databases while collaborating with cross-functional teams to enhance scientific workflows.

The Principal Software Engineer will design core platform services and lead significant software design for multi-tenant SaaS applications, ensuring scalability, security, and code quality while mentoring engineers and driving cross-team collaboration.

The Principal Software Engineer designs and develops Java microservices for AI Governance, collaborates with teams, conducts code reviews, and mentors junior developers to enhance software quality.

The Principal Software Engineer will lead development for Dataminr's Knowledge Platform, focusing on AI and data engineering to enhance knowledge graphs and alerting capabilities.

The Principal Software Engineer, Applied AI will lead the integration of AI into full-stack applications, mentor engineers, and ensure system reliability while building features using React and Python.

The Principal Software Engineer will lead the architectural vision, drive AI strategy, oversee SDLC processes, and support recruiting while building scalable and secure systems for a healthcare tech platform.

The Principal Software Engineer will lead and shape the Data Platform's technical direction, drive architectural standards, mentor teams, and enhance HubSpot's AI-powered CRM capabilities.

The Principal Software Engineer will design and build scalable core technology systems for Lime's fleet and mentor a team of engineers. Responsibilities include defining technical strategy and collaborating cross-functionally to improve technology and user experiences.

Design and implement new search features and fixes in Elasticsearch, invent or implement algorithms/data structures, collaborate with a distributed team, contribute to Lucene, and build scalable search functionality for serverless platforms.

Lead cross-functional teams in software engineering, develop technical strategies, mentor staff, and design solutions to enhance financial product offerings.

The Principal Software Engineer will lead design and development of software solutions, mentor teams, and ensure alignment with company's tech strategy while driving innovation in FinTech and cloud services.

Lead design, architecture, and hands-on implementation of scalable healthcare SaaS systems. Drive interoperability (HL7, FHIR, EDI), mentor engineers, liaise with stakeholders, manage technical risk, and ensure quality, performance, security, and innovation.

The Principal Software Engineer will lead architectural direction, integrate AI capabilities, mentor engineers, and tackle complex technical challenges for scalable systems.

Lead the architecture of Commerce Hub by defining core domain models, building intricate systems, and mentoring engineers while influencing product strategy.

Responsible for architecting and modernizing Salesforce's data ecosystem, optimizing performance, and leading design for AI and knowledge graph integration.

The Principal Software Engineer will lead architectural decisions, mentor teams, and enhance scalable systems across the Consumer Experiences team, focusing on quality and observability.

Lead the development and performance improvement of Waymo's simulation infrastructure by setting strategic visions and technical direction, while overseeing stakeholder collaborations and technical reviews.

The Principal Software Engineer will lead software architecture, design, and development for genetic testing systems, collaborating across teams to deliver robust solutions that enhance patient care.

The Principal Software Engineer will lead the architecture of Akamai's AI inference platform, mentor engineers, and drive technical decisions while contributing to the core infrastructure design and optimization.

The role involves leading technical initiatives in automating network engineering for Elastic's infrastructure, developing cloud network solutions, and collaborating in a team-focused environment to enhance platform reliability.

The Principal Software Engineer will lead the modernization of seller applications, set technical strategy, and mentor engineers while driving architecture and engineering practices in a cloud-native environment.

Lead the design and development of scalable backend systems, mentor teams, optimize system performance, and ensure robust API integrations.