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

Lead and grow a team of ML researchers and engineers to define strategy and roadmap for next-generation recommendation systems. Translate cutting-edge research into production systems, collaborate cross-functionally, mentor talent, and drive metrics-backed product outcomes using state-of-the-art ML and generative techniques.

Lead end-to-end forecasting tooling and internal product engineering for the CFO org: build data pipelines, user-facing web UIs, dashboards, and analytics; apply and operationalize AI/LLM capabilities; drive adoption, backtesting, and metric rigor; advise executives and partner across Finance, BizOps, and platform teams.

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 cross-platform team owning image rendering and video playback across apps and web. Set technical direction, improve media load times and playback smoothness, guide platform and architectural decisions, hire and develop engineers, and drive engineering excellence in performance, testing, and reliability while partnering with product, infrastructure, and data teams.

Lead technical vision and development of large-scale, low-latency DNN models for ads conversion. Mine text, visual, and user signals, use LLMs and AI tools to accelerate analysis, automate workflows, and mentor engineers while collaborating on new ad products.

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.

Partner with engineering and cross-functional teams to measure, analyze, and optimize Pinterest's infrastructure. Build metrics, dashboards, and measurement systems; improve data quality and pipelines; design experiments and deep dives to quantify infrastructure changes; translate ambiguous technical problems into actionable analyses; and support investigations on performance, reliability, cost, and measurement quality.

Lead multi-platform Search product and front-end strategy across iOS, Android, and Web. Design and ship end-to-end search and shopping experiences, partner with product, design, ML, infra, and back-end teams, use AI/LLMs to prototype and iterate, define architecture and best practices, mentor engineers, and drive measurable improvements via experimentation and data.

Lead technical strategy and execution for large-scale indexing and retrieval infrastructure across Core, Ads, and Shopping. Drive architecture modernization, cross-org alignment, shared platform capabilities, mentoring, and use of AI to accelerate design, prototyping, and operational excellence.