Software Engineer at Robinhood

I have been a software engineer, working on data products at Robinhood.1. Designed and implemented chatting feed for cryptocurrencies,2. Directed design and implementation of Robinhood's news recommendation system, which includes but not limited to,1) end to end processing pipelines and architectures,2) tagging/deduplication/clustering/personalization models,3) integration of 3rd party real-time data pipelines,4) analytics ETLs, dashboards, experiments
    
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About us

  "Our mission is to democratize America’s financial system. Invest in stocks, ETFs, options, and cryptocurrencies commission-free. For more information about Robinhood, please visit www.robinhood.com. Full Disclosures: robinhood.com/legal/ 

Robinhood Financial LLC and Robinhood Crypto, LLC are wholly-owned subsidiaries of Robinhood Markets, Inc. Equities and options are offered to self-directed customers by Robinhood Financial. Robinhood Financial is a member of the Financial Industry Regulatory Authority (FINRA) and the Securities Investor Protection Corporation (SIPC), which protects securities customers of its members up to $500,000 (including $250,000 for claims for cash). Explanatory brochure available upon request or at www.sipc.org. Cryptocurrency trading is offered through an account with Robinhood Crypto. Robinhood Crypto is not a member of FINRA or SIPC. Cryptocurrencies are not stocks and your cryptocurrency investments are not protected by either FDIC or SIPC insurance. 

Investors should be aware that system response, execution price, speed, liquidity, market data, and account access times are affected by many factors, including market volatility, size and type of order, market conditions, system performance, and other factors. 

All investments involve risk and the past performance of a security, or financial product does not guarantee future results or returns. Keep in mind that while diversification may help spread risk it does not assure a profit, or protect against loss, in a down market. There is always the potential of losing money when you invest in securities, or other financial products. Investors should consider their investment objectives and risks carefully before investing.

Copyright © 2018 Robinhood. All rights reserved.


      Robinhood
        
  

I was a software engineer, working on Data Infra and Learner Experience at Coursera.1. Designed and implemented data model of Coursera’s Masters Track and integrated the product into the platform.2. Maintained Coursera’s core grading and progress computation component, learning hierarchy, and consolidated existent grading formulas.3. Built and maintained internal/external ETLs to improve data compatibility of EDW, e.g., Bing Ads, Salesforce, Amazon S3, MySQL.4. Directed design and development of an idempotent and fault-tolerant dependency management framework for dynamic ETL scheduling.5. Built and maintained monitoring system, including dashboards of real-time job status and incident notification.6. Built data lineage tool to automatically extract and visualize data dependency from multiple sources, e.g., SQL queries, python scripts, configuration files.7. Implemented and maintained back-end service and infrastructure development on internal Scala stack using Google Play framework.8. Developed API to expose the data warehouse for consumption by the rest of the company. 9. Developed front-end web application with modern ES6/ES7 stack using ReactJS and Redux.
    
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      Coursera
  

I was a research assistant, working on a roll back system for VM clusters at Beihang ACT lab.1. Researched, designed and implemented a traffic-saving roll back system for virtual machine cluster.2. Saved network traffic by utilizing both UDP and TCP protocols.3. Improved broadcasting process by sequencing broadcast group by cyclic code.4. Work published in 7th IEEE/ACM International Conference on Utility and Cloud Computing, and recognized as China's No.201610044580 patent.
    
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      Beihang University 
        
  

I was a data mining intern, working on blog recommendation at Sina Corporation.1. Collected and analyzed user data of relationships between time intervals and interest distribution.2. Conducted experiments of applying genetic algorithm and hits algorithm into blog recommender system.3. Built alerting tools to monitor A/B testing outcomes.
    
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About us

  SINA is an online media company and MVAS provider in the People’s Republic of China and for the global Chinese communities. With a branded network of localized websites targeting Greater China and overseas Chinese, the Company provides services mainly through SINA.com (online news and content), Weibo.com (microblog) and SINA Mobile (MVAS). Through these businesses and properties and other business lines, SINA offers an array of services including region-focused online portals, MVAS, microblog, blog, video and music streaming, photo sharing, online games, email, search, classified listings, fee-based services, e-commerce and enterprise e-solutions. The Company generates the majority of its revenues from online advertising and MVAS offerings and, to a lesser extent, from fee-based services.

SINA offers distinct and targeted content on each of its region-specific websites and a range of complementary offerings designed to broaden its user base and increase user traffic. The Company aims to become the media platform of choice for Internet users to research and retrieve information, share opinions and build social networks and for businesses to market and promote their products and services. SINA offers a range of complementary offerings, all centered on its core online media business, that are intended to enhance the attractiveness of its portal and microblogging properties and strengthen its reach in the Chinese online community.

Sina Com Technology (China) Co. LTD

For more than 300 years, Yale University has inspired the minds that inspire the world. Based in New Haven, Connecticut, Yale brings people and ideas together for positive impact around the globe. A research university that focuses on students and encourages learning as an essential way of life, Yale is a place for connection, creativity, and innovation among cultures and across disciplines.

Software Engineer at Robinhood

Robinhood

Software Engineer

Coursera

Software Engineer

Beihang University

Research Assistant

Sina Com Technology (China) Co. LTD

Data Mining Intern

Yale University

Computer Science

Master of Science (M.S.)

Beihang University

Computer Science

Bachelor of Engineering (B.Eng.)