Zero Cho

a.k.a 卓建安 /


Georgia Institute of Technology

2012/08 - 2014/05

National Tsing Hua University

2010/09 - 2012/06

National Central University

2006/09 - 2010/06
  • CE - Communication Engineering
  • Overall GPA: 3.1/4.0
  • Major GPA(Computer Science): 3.7/4.0

Exam Scores


Total: 107 (R: 29, L: 28, S: 23, W: 27)


V 149/42%, Q 163/88%, AWA 3.5/29%


Journal Papers

Chih-Lin Hu and Chien-An Cho, “User-provided multimedia content distribution architecture in mobile and ubiquitous communication network”, Journal of Network and Computer Applications, Vol. 34, pg. 121-136, January 2011 [Paper]

Chih-Lin Hu, Chien-An Cho, Chang-Jung Lin and Chen-Wei Fan, “Design of mobile group communication system in ubiquitous communication network”, IEEE Transactions on Consumer Electronics, Vol. 56, pg. 88-96, Feburary 2010 [Paper]

Chih-Lin Hu and Chien-An Cho, “A Novel Mobile Content Delivery Scenario with Simple Double-Key Secure Access Control,” International Journal of Security and Its Applications, Vol. 3, No. 1, pp. 1-16, January 2009. [Recommended by UMC'08] [Paper]

Conference Papers

Chih-Lin Hu, Chien-An Cho, Chang-Jung Lin, Chen-Wei Fan, “A location tracking and messaging system for mobile group communication in IP networks,” International Conference on Consumer Electronics (ICCE), 2010 [Paper]

Chih-Lin Hu, Chien-An Cho and Po-Jung Wang, “Secure Mobile Content Delivery Architecture in Hybrid Network Environment,” accepted by the 2008 International Symposium on Ubiquitous Multimedia Computing (UMC’08), Hobart, Australia, Oct. 13-15, 2008. [Rate: 22% (46/201)] [Paper]


Chih-Lin Hu, Chien-An Cho and Po-Jung Wang, “System and method of mobile content sharing and delivery in an integrated network environment,”, US Patent App 13/338,489 [ref]

Chih-Lin Hu, Chien-An Cho, Chen-Wei Fan, Chang-Jung Lin, “System and method of mobile group positioning,”, US Patent App 12/654,050 [ref]

Work Experiences

Robinhood Markets, Inc. home

Web Engineer
2018/07 - now
  • Menlo Park, CA
  • Consumer Web team

Twitter, Inc. home

Senior Software Engineer
2016/08 - 2018/06
Software Engineer
2014/06 - 2016/08
  • San Francisco, CA, USA
  • Desktop Web: Full-stack Scala/JavaScript
  • Web-Tools: Deploy/Testing infrastructure
  • Twitter Lite: Data-minded mobile web (React/Redux)
SoftEng Intern
2013/05 - 2013/07
  • Web Core team (FE/BE framework)
  • Winner of Hackweek'13
  • Implemented pop-up notifications from microservice to frontend

KKBOX, Inc. home

2012/01 - 2012/08
  • Taipei, Taiwan
  • Mobile and web platforms research
  • Prototyped Android Custom UI components
  • Prototyped HTML5/Javascript Game

MediaTek, Inc. home

SoftEng Intern
2011/07 - 2011/08
  • Hsinchu, Taiwan
  • Android System Team
  • Developed GDB/Python extensions for kernel dump forensics

hypo home

2008/08 - 2011/09
  • Taipei, Taiwan
  • Individually developed web editors for Ticket and Wide
  • Maintained PDF framework in Cocoa and its Ruby DSL wrapper
  • iOS application development
  • Mac OS X / Linux System Administration

NCU eecesnmg home

2007 - 2010
  • Taoyuan, Taiwan
  • System Network Management Group, Department of Electrical Engineering & Communication Engineering, National Central University
  • Lead the group for the major system transition (FreeBSD 4 to ArchLinux)
  • Experiences of major system failure recovery (Hard disk failure due to power outage)


eBay GaTech Hackathon '13

2nd Prize
  • Facebook graph search for eBay items

Taipei Fun App Contest '11

Taipei City Government
1st Prize

Embedded System Contest '11

Ministry of Edu., TW
Honorable Mention
  • Augmented Reality Home Controller

Telecom Value-Added Contest '10

Chunghwa Telecom
Honorable Mention
  • Home automation system integrated with MOD and sensor network

WWDC Scholarship '09

Apple Inc.

MobileHero Android Software Contest '09

Ministry of Econ. Affairs
2nd + Google Prize
  • KerKerInput, an Android Chinese Input Method framework

Telecom Value-Added Contest '09

Chunghwa Telecom
1st Prize
  • SLIMA, location-based photo blogging system with timeline

ICSCA Contest '09

Ministry of Edu., TW
1st Prize
  • ICSCA: Internet Communication Softwares and Creativity Application
  • Inter-vehicle Communication System on Android

Software Creativity Contest '08

Ministry of Edu., TW
Honorable Mention
  • JudgeOnRails, online program grading system for school

School Projects Contest '07, '08, '09

Honorable Mention
  • MBS, Adaptive media streaming service for Wireless network '08
  • MobileSync, Data synchronization and access method for hetrogeneous network '07
  • RoomRider, in-door room map conduct and positioning using Zigbee '07