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Backend Developer Intern
Bytedance• May 2021 - August 2021
● Worked in the Fintech-Pay-ECommerce-Payment team, and participated in development needs for Doudian merchants such as Year-End-Rebate, Seller-Bill-Optimization PhaseII, Oversea-Bill and Seller-Withdraw-Optimization PhaseII. ● Communicated with Product Managers to understand the development needs, Front-end and Back-end Developers to develop the needs and Quality Assurance Analyst to ensure the products are delivered in good quality and match PM’s requirements. ● Built and deployed APIs on Load Balanced servers for new and migrated features, and implemented RPC interfaces to provide downstream services for other backend teams. ● Unified different download APIs into a download-center API for the team project. Used RocketMQ to produce and consume user’s download requests in JSON format, MySQL database to store user query, download status, etc, TOS(Toutiao Object Storage) to store generated reports, and SDK by Traffic-Infrastructure team to package TOS url into a signed url for users to download the files on TOS via CDN. ● Built a CronJob which runs weekly to update each merchant’s floor limit for withdrawal. The job reads the Hive table provided by the Fintech-Risk-Control team on each Monday, calculates the new floor limit for each merchant on that week, and inserts the results into MySQL table by transactions. This feature impacts nearly 500,000 merchants on Doudian and reduces ByteDance financial loss for covering customers' refunds
Education
University of Southern California (USC), Los Angeles
Computer Science, MS
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