Yang Xu

VP, Head of AI Engineer @ Brightstar.AI

About

Results-driven AI leader with deep expertise in AI interventions. Proven track record of building high-performing teams from the ground up to deliver cutting-edge AI products using state-of-the-art technology stacks.Established Google’s first GenAI modeling team for Enterprise, contributing to strategic GenAI initiatives including Gemini. Scaled a team from zero GenAI experience to world-class GenAI experts, driving core modeling innovations and improvements for Gemini’s foundational models.

Country

United States

City

Mountain View

Industry

Internet

Skill

GenAI, Agentic AI, Full-Stack Development, Large Language Models (LLM), AI infra, AI Quality, Data Warehousing, Java, Python, Servlets, Eclipse, Distributed Systems, Algorithms, XML, SQL, Machine Learning, SQL Server, MySQL, Oracle SQL, Linux

Experience

VP, Head of AI Engineer

Brightstar.AI

2026-1 - Present · 9 mos

Leading AI transformations in private equity-owned portfolio companies across different industries, driving enterprise value through the strategic deployment of agents and foundational models. By collaborating with world-class partners, we are turning the "art of the possible" into scalable commercial impact.

Founding Tech Lead Manager of Gemini Modeling & Quality @ Cloud

Google

2022-11 - 2026-1 · 3 yrs 3 mos

Sunnyvale, CA

• To enable Gemini for Enterprise, led foundational Gemini models with Google DeepMind, focusing on post-training (e.g., SFT, RL) on Text and horizontal capabilities (e.g. Instruction Following, Factuality) • To enable Gemini for Agentic uses, improved foundational model capabilities (e.g. instruction following of agentic workflow, ultra complex instructions, hallucinations reduction). • Enhanced quality for RAG and Agentic RAG enterprise use cases. • Pioneered the data flywheel for LLM training and evaluation, significantly enhancing Gemini model capabilities. • To drive the customer adoption of Gemini APIs, launched several AI Native products (e.g. Prompt Optimizer, Vertex AI Assistant) to help customers with prompt generation and refinement and customer support experiences.

Co-founder of Document AI

Google

2020-4 - 2023-2 · 2 yrs 11 mos

Sunnyvale, California, United States

Procurement AI: Founded and led the first DocAI product Procurement AI to GA from ideation, delivering tailored document understanding solutions to automate payment processing. DocAI Workbench Platform: Co-led the Document AI Workbench quality, creating a platform for users to build customized ML models leveraging the Pretrained APIs. Document Warehouse: Launched Document Warehouse to GA, enabling robust management and orchestration of structured/unstructured data for downstream AI processing and analytics

Technical Lead / IC

Google

2013-10 - 2020-4 · 6 yrs 7 mos

Sunnyvale, California, United States

Vision API: Landed Form Parser GA from scratch, enabling automated extraction of structured information from documents. Adwords: Improved bidding UIs and APIs to enable advertisers to set up and manage bidding strategies and performance. Launched Google App Campaign to enable mobile app ads.

Software Engineer

UBS

2011-8 - 2013-10 · 2 yrs 3 mos

Developed ultra high volume (e.g. peak 1/3 of all US equity orders) and low latency trading system. Developed dark pool matching engine to facilitate real-time equity orders.