Jan 2023 – Jan 2025 · 2 yrs

• Led LLM-driven safety systems to protect users from viral harmful content at global scale.
• Architected multilingual foundation-model pipelines, significantly expanding automation and narrative detection coverage.
• Drove adoption of LLM first responsibility strategy for YouTube.

Jan 2020 – Jan 2023 · 3 yrs

• Led AI systems for trusted user-generated content (Places, Reviews, Images, Video), building graph-based user understanding and embedding models with large-scale online training.
• Developed multimodal models to improve abuse detection across billions of user contributions.
• Pioneered cold-start ML strategy unlocking high-quality contributions from new users.

Jan 2017 – Jan 2020 · 3 yrs

• Led early transformer / BERT-based foundation models for Search and Discover, advancing large-scale sequence modeling pre-LLM era.
• Led research on early large-scale sequence based recommendation models.
• Productionized embedding systems across Search, Android, Chrome and Ads, establishing shared semantic representation infrastructure.
• Led personalized, on-device Autofill on Android, pioneering privacy-preserving AI integrated into core product flows.

Jan 2015 – Jan 2017 · 2 yrs

• Developed and launched one of Google’s early neural-network-based content understanding systems.
• Pioneered production use of TensorFlow for Ranking and Recommendations.
• Drove early adoption of deep learning in consumer-facing Google products.