Qing-Cheng Li

qcl, coding & learning.


Work Experiences

Senior iOS Developer 

LINE, Taipei, Taiwan. Sep 2020 - present

  • Reduce app build time by migrating internal iOS modules to Bazel build.
  • Develop LINE Live Commerce features by collaborating with developers across countries.
  • Reduce binary size of LINE iOS.

iOS Developer 

Booking.com, Amsterdam, Netherlands. Jan 2018 - Jun 2020

  • Develop and experiment (A/B testing) new features on customers facing app (Booking.com App) and partners facing app (Pulse) rapidly and iteratively.
  • Collaborate with backend developers to build a system to track and attribute installations and reservations made by Booking.com’s native apps, then evaluate and optimize performance of campaigns.
  • Work across teams to protect customers’ privacy on apps and make sure apps are in compliance with GDPR and other data protection regulations.
  • Develop internal server side rendering native app framework.

Senior Mobile App Engineer 

Yahoo, Taipei, Taiwan. Apr 2016 - Dec 2017

  • Develop Yahoo Taiwan E-Commerce native App (Marketplace Store iOS App) mainly and shared components used in various Yahoo iOS Apps.
  • Collaborate with designers and PMs closely in scrum team to enhance user experiences, integrate internal SDKs and deliver new features like review and rating, favorite stores and collected items management, search result filter, voucher redemption, universal links and deep links handling and App indexing.
  • And also develop Yahoo Taiwan E-Commerce websites’ AMP (Accelerated Mobile Pages).

Mobile App Engineer

Yahoo, Taipei, Taiwan. Oct 2014 - Mar 2016 

Software Engineering Intern 

Yahoo, Taipei, Taiwan. Jul 2013 - Jun 2014

  • Collaborate with PM intern and designer intern to redesign the original non-native Yahoo Daily Deal App then rewrite it with native code both for iOS and Android and integrate it into continuous delivery pipeline. 

Part-time Assistant

Academia Sinica, Taipei, Taiwan. Aug 2012 - Jun 2013

  • Build a Taiwanese rich families and political families trees database and visualized query system to find the relationship between the rich and politician to help research. 

Android Programer

NTU, Taipei, Taiwan. Apr 2012 - Jun 2012


National Taiwan University 

Master of Science. Computer Science. Sep 2012 - Aug 2014

  • Natural Language Processing Lab.

National Taiwan University 

Bachelor of Science. Computer Science. Sep 2008 - Jun 2012

  • Minor in Civil Engineering
  • Trend Micro Cloud Program

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