Xin Liu

About Xin Liu

Senior Engineering Leader with 18+ years of experience and a proven track record of…

Experience

1. Senior Software Engineering Manager

   Snap Inc.

   Sep 2016 — Present · Seattle, WA, US

   2021 - Present Safety Engineering: Lead engineering group build large scale systems, ML models, and toolings to protect the safety of 900M+ Snapchat users across all the product surfaces- Child Safety: CSAM detection and reporting across all product surfaces to ensure minors are safe on Snapchat- Moderation Platform: large scale distributed system to detect & prevent harmful content and bad actors to protect snapchatters\' safety- Safety ML: machine learning models (Computer Vision, NLP, DNN, LLMs) for harmful content and bad actors detection, and moderation automation- Abusive Language Detection: large scale, low latency text moderation service leveraging rules and ML (NLP, LLMs) to detect abusive text across all Snapchat products and features- Investigation Platform: tools, systems, and signals for bad actor investigation at scale.20••••21 (Software Engineering Manager and Tech Lead)- Ads Safety & Integrity: services, ML models (Computer Vision, NLP, DNN), and review tools that enable ads & products moderation at scale, and detects and blocks fraudulent ads and fraudsters- Payments: global payments platform. Services and ML models to enable revenue growth and fight against payments frauds and chargebacks- Content Understanding Platform: large scale content understanding infra that hosts ML models for understanding ads, products, and stories for moderation and ranking- Ads API & Publishing: APIs for enabling programmatic advertising. Data processing pipelines and systems that transform ad campaigns into ads indexes for ads serving.