Yan Zhang Email and Phone Number

• Owns the systems that onboard all types of Amazon candidates, including fulfillment center associates, driver associates, corporate employees, and other roles• Owns the stakeholder management with 10 upstream applicant tracking system teams and 4 organizations, drives cross-organization alignments on new product tech strategy, legacy system deprecation strategy, and execution plans• Leads a team of 10-11 members, including technical program manager and software development engineers, conducts periodic 1on1s, provides career guidance, and manages performance• Automated 10+ manual onboarding processes, including candidate status management, document generation, and more, having saved 4000+ manual work hours for service teams per year• Led operational improvements that reduced day-to-day engineering operational cost by 30%

• Built new software systems to manage the personal information of all types of Amazon employees, including corporate employees, associates, contingent workers, and other roles• Migrated 900 million records from a legacy 3rd party system to the new 1st party system, and successfully cutover the data source for 120+ downstream data consumers• Led a team of 9-13 software development engineers, had weekly 1on1 meetings, provided career guidance, and managed team performance• Built a service to depersonalize personally-identifiable information (PII) to enable the 1st party system to comply with privacy regulations, like General Data Protection Regulation (GDPR)

• Designed and built an event-sourcing system for Amazon’s human capital management system, and successfully launched this system for the personal information organization.• Built a data pipeline to continuously ingest data from legacy SQL-based data sources into the new DynamoDB-based system

• Built three ETL data pipelines to ingest and transform millions of Amazon employee records from 60+ Oracle database tables to a centralized NoSQL database, providing data consumers interfaces from 1st party platforms• Expanded the Annual Vendor Negotiation platform to European marketplaces, which handles over 5k negotiations between Amazon and marketplace vendors every week• Regionalized the service that handles vendor future costs in 10+ countries and improved service latency by 60%

• Designed and implemented a service to migrate AWS accounts data from MySQL to DynamoDB• Implemented an operational tool to bulk update AWS account contact information• Expanded a Tier-1 service that stores AWS accounts data to 5 regions

• Migrated over 20 equities.com website components to the Joomla content management system (CMS)• Used the Joomla CMS to customize and improve the news and market trend sections of the website