Experienced in designing and building large scale backend storage, data pipeline, and data serving. Knowledge & Skills • Programming Language - Proficient in C++; Familiar with C, Python, Objective C, PHP • Artificial Intelligence, Machine Learning, MapReduce, Bigtable, Operation System, Database • Mobile & Web Development - iOS, AWS, Django, MySQL

Software Engineer @ • Contributed as a key backend engineer to pivoting GA into a user centric analytics platform by designing and building user based data models, storage systems, data processing pipelines, and reporting services. • Delivered Individual User report, Cohort report and Lifetime Value report in GA by participating in product design, backend implementation, testing and resource planning. • Worked on multiple data integration projects such as showing AdWords and DoubleClick campaign in Lifetime Value report and integrating AdWords campaign and cost data in Multi-Channel Funnels (MCF) reports. • Built the worker system in GA data serving layer that splits complicated queries and distributes data extraction to hundreds of machines to speed up query processing for MCF reports. • Performed routine tasks including on-call duties, production release push, production bug fix, etc. From July 2013 to Present (2 years 4 months) Mountain View, CACofounder & Developer @ • Designed and built social network app Swoop that allows users to make videos using photos and sound. Launched the iOS app in Apple Store in May 2013. • Developed app backend on Amazon EC2 with Django. • Self-taught iOS programming in 2 weeks. From January 2013 to June 2013 (6 months) Ann Arbor, MISoftware Engineer Intern @ • Worked in the Infrastructure team to develop a web application that lets users visualize and analyze the historical status of Google’s internal servers at a given timestamp • Designed and implemented extensible backend of the application including database interaction and caching system in C++ and SQL; built a temporary user interface in HTML that is easily transferable to the one being developed by a full-time employee From May 2012 to August 2012 (4 months) Mountain View, CACo-founder & Web Developer @ • Developed a programming language similar to Python and built the compiler that allows customers to code stock investment strategies and run backward and forward tests • Designed and implemented the file based database for user information, stock investment strategies, back test results, and virtual directories in PHP • Set up the Linux development environment from ground up on Amazon EC2 servers by configuring Apache, PHP, MySQL, MediaWiki, Drupal, GIT, etc From September 2011 to May 2012 (9 months) Ann Arbor, MIInternship @ • Developed 7 widgets in Python that analyze and display the rainfall and water flow data specified by customers which improved rainfall analysis efficiency by over 80% • Wrote 14 test files with the nose library and built a test server with the help of a colleague to auto-test widget codes which saved more than 60% of time to do future tests • Managed rainfall and water flow data by obtaining the data from Excel spreadsheets and transforming them into time-series objects so they can be used by widget codes From May 2011 to July 2011 (3 months) Ann Arbor, MIResearch Assistant @ • Utilized LabView to design and build a program that controls the pulsed nuclear magnetic resonance (NMR) experiment; rewrote the program in Igor Pro • Conducted precise measurement of Radon's reaction to a varying magnetic field under 140 Degree Celsius environments; improved the set-up of the Radon electric dipole moment (EDM) experiment by upgrading the cell and wire • Devoted ten hours per week to grade homework and exams for physics260 - Honors Physics II lectured by Professor Chupp From May 2010 to July 2011 (1 year 3 months) Ann Arbor, MIResearch Assistant @ • Tested and improved a software worth $50,000 which counts the number of bacteria colonies on culture plates; redesigned the user interface; wrote the user instruction; presented the software to 15 researchers during lab meeting • Programmed using Python and Parallax Propeller Tool to improve the fruit fly sleep deprivation experiment; allowed users to monitor individual fruit fly • Maintained experiment environment for the Screen Project; works included operating autoclave, sexing and transferring fruit flies, preparing test tubes, etc From January 2010 to January 2011 (1 year 1 month) Ann Arbor, MI

Bachelor of Science, Computer Science, Financial Math, 3.77 @ University of Michigan From 2009 to 2013 Computer Science, 4.0 @ Stanford University Weixiong Zheng is skilled in: C++, C, PHP, SQL, Algorithms, Python, HTML, Linux, iOS, Web Development, Mobile Applications, Software Engineering, Statistics, Programming, Web Applications, Matlab, MySQL, Git