張宏誌 Sean Chang

• Software engineer with over three years of experience. 

• Primarily focused on development of Android application.

• Able to analyze and solve problems efficiently. 

• Passion for learning new technologies.



Java and Kotlin

MVC, MVVM architecture

Multi-Thread, Kotlin coroutine

Unit Test

Firebase Services

Hardware Integration

Payments SDK (Linepay, NCCC, EasyCard)


Spring MVC


Python flask

Oracle Database

Mongo Database




AWS Deployment


Mayo, Software Engineer, Nov 2020 ~ Current

• Duties: 

  1. Developed and maintained two HR and one Face Pass Android APP. 

  2. Refactored Android App legacy code from Java to Kotlin.

  3. Communicated with team engineers and did code review through Azure Devops with them.

Lafresh, Software Engineer, Apr 2017 ~ Oct 2020

• Duties: 

  1. Developed Android APP, including following online payment SDK integrate: Line Pay, Pi, NCCC. 

  2. Participated in a software-hardware integration project as an Android developer.

  3. Communicated with outsourcing engineers and did code review through GitLab for them.

• Achievements: 

  1. System Optimization: improved the deployment architecture with scalability and better performance. 

  2. Based on the behavior of customers, find the best flow of Kiosk and increase the customer satisfaction  


Trainee, Institute for Information Industry, Sep 2016 ~Mar 2017

  1. Obtained Android, Java and Software Development Flow skills.

  2. Finished PhotoInSearch projects with following skills:
        Android / Java Servlet / Oracle DB / WebSocket / 

        Demo Video : https://youtu.be/CY0cT-tQV5s

  3. Took the lead of Final Project and was selected as the outstanding project.

Working Holiday at Australia/Japan Jun 2013 ~ Aug 2016

  1. Adapted to new environment with people from different countries easily.
  2. Did various types of work efficiently by improving ordinary methods.
  3. With deep knowledge of Japanese and Australian culture.


Tamkang University, Bachelor of letters, Department of Japanese, 2007 ~ 2011

  1.Study Japanese language and culture.

  2.Study as an exchange student in Kyoto for one year.

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