• Developed a modern cloud-based data stack to enhance scalability and reliability.• Ensured compliance and improved data quality and observability across the organization.• Mentored and grew the data engineering team, fostering development and expertise.

• Led creating and evolving a scalable data platform specialized in product analytics and event tracking. This platform now serves over 1500 customers with a monthly active user base exceeding 1 billion, handling daily event tracking of 80 billion events and ensuring optimal data integrity and system performance.• Implemented strategies that substantially improved customer success outcomes, including a robust data infrastructure that supports real-time analytics and enhances customer experience. Directly contributed to GrowingIO’s growth by integrating customer feedback into continuous product improvements.• Managed a diverse team of 80 professionals across data engineering, operations, and customer success, fostering a culture of innovation, accountability, and high performance. Successfully grew the data engineering team, enhancing the company's capacity for advanced data solutions.• Oversaw the expansion of data capabilities with technologies like Kafka, Hadoop, ElasticSearch, Metabase, and ClickHouse on AWS, achieving a 30% improvement in data processing speeds and creating a comprehensive data security framework.

• Pioneered data infrastructure at GrowingIO with Kafka, Hadoop, and ElasticSearch, ClickHouse. Built scalable AWS-based pipeline (50 instances), achieving 30% faster data processing and real-time analytics.• Created a comprehensive data security solution with encryption, access control, and backup mechanisms to prevent breaches.• Grew data engineering team from 3 to 8, actively involved in recruitment and retention. Includes 2 Spark community developers.

• Led a team of nearly 20 engineers to develop big data analytics platforms and solutions. The mission was to enable business partners’ success. The partners are LinkedIn Sales, Marketing and Product.• Created big data productivity tools, Merlin (Sales Insights) for sales, LISTT (LinkedIn Segmentation & Targeting Tools) for marketing, and AB testing platform XLNT (LinkedIn AB testing platform) for the product team and churn prediction for the customer success team.• Notably, the Merlin project was featured in Reid Hoffman's book, Blitzscaling: The Lightning-Fast Path to Building Massively Valuable Companies.

• Implemented automated data pipeline at LinkedIn, tackling challenges of huge data volumes, siloed data, and repetitive queries. Streamlined access for 100+ data scientists, enabling ML model building. Enhanced daily usage for Sales, Marketing, and XLNT platform, enabling global-scale AB tests with 200M users.• Supervised a team of 18 software engineers to build data pipelines and internal data products to support LinkedIn business, talent solutions, marking solutions, and online subscriptions. • Created an A/B testing analytics tool for LinkedIn PM, PMM, business analysts, data scientists, and engineers to track and analyze over 1000 site experiments simultaneously. Increase productivity by 10x.

• Created big data solutions integrating processing visualization. Customized data-driven web app Merlin, enabling 1500+ sales to close deals easily, quickly, and at scale. Achieved >100% YoY revenue growth for LinkedIn in 2011-2012.• Engineered easyData, a web-based ETL tool automating data processes across Hadoop, Teradata, Aster Data and Tableau. Saved time and automated ML pipeline for 100+ analysts/data scientists.• Generated member attributes, behavior, and a social activity dataset from Hadoop and Teradata with over 400 fields, which empowered LinkedIn marketers to target the right audience. Subscription campaign conversion rate increased 3x .

• Dedicated to eBay Advertising Tech Solution team. Integrated internal and external data, automated keyword discovery and ranking. Supported 15+ analysts and scientists. Developed eBay's SEO, SEM, and Display Ads data mart.• Notable achievements at eBay include: website traffic analytics, troubleshooting on the Microsoft Bing and eBay Cashback projects, boosting eBay SEO link juice to an 100% increase in site organic traffic, and implementing 4M keyword automation and ROI analytics.

• HP Enterprise Data warehouse projects in both Shanghai and Houston, which involved designing and implementing data solutions for the company. Achieve the goals to consolidate 85 data centers into 3. Saved cost for the company.• Extracted SAP data to data warehouse. Optimized processes, improving performance and data integrity. Reduced ETL time by 30% and increased data accuracy by 25%.• Collected IoT data from HP printers to predict maintenance needs, preventing downtime and improving customer satisfaction. Restructured data pipelines and storage solutions using Informatica and Oracle to enable efficient data processing and analysis.

• Implemented a data warehouse for Baosteel, China's largest steel company. Worked on SAS, Oracle and IBM COBOL for data modeling, processing, visualization, providing valuable business insights.• Developed data marts for sales, marketing, product, manufacturing, and shipping using SAS and Oracle. Four steel companies benefited from this data solution, optimizing their business and improving product quality.