Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Lead cross-engineering, high-impact ML/AI platform programs from ambiguous opportunity to delivery. Use GenAI-first execution to prototype AI-augmented tools, institute safety-by-design governance, drive technical decisions, influence roadmaps, and build scalable PM processes while aligning stakeholders and owning program outcomes end-to-end.

Lead a multi-team organization responsible for building and operating Pinterest's foundational online systems, ensuring technical excellence, reliability, and innovation while fostering a culture of inclusion and mentorship.

Lead a portfolio of cross-functional platform programs (quality, client foundations, ads, core infra), using GenAI to prototype workflows, drive modernization, manage risks/dependencies, and develop a small TPM team while remaining hands-on for strategic, high-risk initiatives.

Lead technical vision and roadmap for Pinterest's AI Platform. Architect petabyte-scale data orchestration, model training/fine-tuning, and high-performance inference for Generative AI and Recommender Systems. Drive cross-functional initiatives, influence architecture across the company, and cultivate an inclusive engineering culture focused on quality and ownership.

Develop and fine-tune vision-centric large language models and visual encoders, build evaluation benchmarks, collect and prepare visual training data (including for RLHF), prototype architectures for production VLMs, publish research, and mentor junior researchers within a small applied ML research team.

Lead technical strategy and build production-scale ads ranking and bidding models using large-scale ML and agentic development loops. Design training, evaluation, and feedback pipelines that learn from online behavior and experimentation, ensure reliability, fairness, and compliance, and partner with product, science, and infra teams to drive metrics and mentor engineering talent.

Lead end-to-end technical delivery for advertiser and seller platforms, designing scalable, reliable APIs and data-intensive systems. Apply and integrate ML/GenAI with strong validation and guardrails, measure impact, partner cross-functionally, and mentor senior engineers to raise technical quality and production readiness.

Lead data-driven strategy for Pinterest Ads by translating business needs into analytical solutions, ensuring data quality, connecting product and financial performance, advising cross-functional leaders, and elevating data science practices across the organization.

Manage a portfolio of client accounts for a CTV ad-tech platform: launch, optimize, and analyze campaigns; drive revenue through upsell and retention; develop account plans; advise clients and agencies; collaborate with internal teams; mentor junior staff; and use AI and data to speed optimizations and deliver measurable ROAS.

Lead product design for Pinterest's Design Innovation team, evolving design language, creating high-quality, accessible experiences and prototypes, collaborating cross-functionally, mentoring designers, and exploring AI-powered interactions to drive product and system-level impact.