Ziv Hsu

I have been a program developer for almost two decades. During this period, I participated in the project development of various types of games and web backends, and I have rich practical experience in program development, games, and backend related technologies. 

I used to be in charge of technical supervisor positions for nearly ten years. Although management wasn't my major, I am more humble about learning how to be a good manager, so I have also gained a lot of experience in management-related affairs.

  Taiwan Province, Taiwan     

Professional Skills

Tech Stack

   Java      C++      C#      Spring Cloud      Unity

  • Kotlin
  • Spring Boot/Cloud (Microservice Architecture)
  • Trident(Tron Protocol SDK) of Tron Cryptocurrency 
  • RxJava
  • Unit Test Frameworks for Java and Kotlin(JUnit, Mockito, AssertJ, MockMvc & MockK)
  • Design Pattern
  • Distributed System (shared storage & memory architecture)
  • Asynchronous Communication (I/O completion ports, Overlapped I/O...)
  • Parallel Processing (Task-based Asynchronous Pattern)
  • MVC Architecture
  • MariaDB/MySQL
  • Hibernate Framework
  • Boost C++ libraries
  • Protocol Buffers
  • DNSCrypt v2 Protocol
  • cryptlib (an open-source cross-platform software security toolkit library)
  • Cocos2d-x (an open-source & cross-platform game engine for C++ developers)
  • Redis
  • Full-stack Game Programming / Development
  • UniRx (A reimplementation of the .NET Reactive Extensions)
  • Google VR SDK for Unity (Google Cardboard)

Design Tools

   IntelliJ      Visual Studio      VS Code      Xcode      GIT   

  • GAE(Google App Engine)
  • ELK(Elasticsearch, Logstash & Kibana)
  • UML

Work Experience

Senior Software Engineer

Infinite Creativity Technology  •  一月 2018 - Present

1. Independently developed a customized browser in which a DNS encryption feature is embedded (including Windows and Android versions, and using C++ and Java languages).
2. Serving as the Scrum Master of the department and taking charge of introducing and executing the agile development flow.
3. Led the development of the payment integration project 《P-Hub》, providing customers with access to different payment systems through a unique set of service APIs.（Using Java and Kotlin languages）
4. Investigated the design concept of unit test independently and introduced it into the 《P-Hub》 project. Completed implementation of unit test and integration test for this project finally.
5. Studied the Trident SDK and Web API of the Tron operating system, then developed payment-related features such as transfer of cryptocurrency wallet, wallet balance query, transactions query, etc., to provide payment operations in cryptocurrency for products.
6. Take charge of the annual upgrade of Spring Boot and Spring Cloud, the primary frameworks which our payment integration project uses. The substantial revision of the frameworks often causes some functions of the product to work abnormally, so I have to investigate deeply and find solutions and implement them, then ensure those functions work fine.

Software Engineer

Animoca Brands (Taiwan Office)  •  二月 2016 - 七月 2017

1. Participated in the maintenance of several existing Unity game projects.
2. Participated in Project 《Dino Craft City Terror 》(Unity mobile game) and was in charge of the development of the crafting system, breeding system, tutorial system, and relevant UI systems.
3. Integrated the platform service of Tencent MSDK into Project《Groove Planet》, successfully passed Tencent’s audit, and released this game on the game centers of QQ and WeChat.
4. Took over the development of project 《Garfield Fit》, responsible for the following tasks:
    A. Integrated the plugins of native GPS and Pedometer into Unity and completed the relevant mini-games.
    B. Modified and added a reward system, character unlocking, and other features to improve playability. It effectively increased the downloads and DAU from 10% to 30%.
    C. Improved the design and functionalities of UI and earned the feature from the App Store.
    D. Wrote the script of the post-processor to append necessary settings to the XCode project when exporting it from Unity to improve the efficiency of the game releasing process on the App Store.
5. Self-learning in Google VR SDK for Unity (Google Cardboard).
6. Supported HK headquarters for the engineer recruiting of the Taiwan office, including reviewing the screened candidates’ CVs and first interviews.

Supervisor

Zealot Digital international Corp. (A subsidiary company of Soft-World Group, which researches and designs computer games)  •  九月 2015 - 九月 2015

Dept.: Product Development Section
Responsibilities:
Researched and designed technologies and developed projects for mobile games.

Supervisor

Zealot Digital international Corp.  •  十月 2014 - 八月 2015

Dept.: Mobile Game Development Section, IP Collaboration Office
Responsibilities:
1. Researched the development of the IP collaboration market, estimated the technical abilities of the corporations used in the collaboration projects, and supported the projects if necessary.
2. Investigated the programming technologies around the mobile game and supported projects as a technical advisor.

Senior Software Engineer

Zealot Digital international Corp.  •  一月 2011 - 六月 2014

Dept.: Product Development Section
Responsibilities:
1. In charge of the full-stack gameplay development of the MMORPG project and supported core technologies of the game engine
2. 2012/10, Took charge of the server-side in a new web game project, investigated the necessary technologies, designed the system architecture, and developed the core systems.
3. 2013/07, Presided over the program group in a new mobile game department, led the planning of the full-stack system architecture, managed the entire program progress, communicated and coordinated with the other groups in the same project, designed the combat system and relevant systems.

Achievement:
Led the program team with 3 people to complete the first cross-platform mobile game project of our company within 7 months. The Android version of this mobile project, ‘The Heroes of Pili’, was released in Jan 2014. The registered players reached 250000 and the profit of the first month covered our total development cost.

Section Manager (Led 8~10 members)

Zealot Digital international Corp.  •  三月 2008 - 十二月 2010

Dept.: Network System Section
Responsibilities:
1. Investigated and developed the server techniques of MMORPG and product projects.
2. Investigated and designed the new generation game server engine of MMORPG (Code Name: Steam Age).
3. In charge of the R&D strategy’s decision and the schedule management of the projects.
4. Took part in the cross-departmental coordination for important issues or the decision of project policies.
5. Planned and executed the staff training.

Achievements:
1. Drew up a training plan similar to 'Flipped Classroom' by myself. The execution result was very good in enhancing our partners' professional skills, increasing the entire working performance, and improving our partners’ abilities for communication, expression, and independent work efficiently.
2. Supported a plan for the development of our new generation game engine for my company to help members to gain more experience from practice, which needs to collaborate with another program dept., and we named this project 'Steam Age'. That we investigated new technologies, designed and developed this engine for around half a year yielded early positive results. But the senior supervisors wanted to adjust the primary R&D policy in the meantime, so we were finally forced to cancel this development plan. Even though it was never finished, the process really made our team more powerful, which was verified by the performance enhancement of the follow-up projects and the improvements in the production flow, and so on.

Supervisor

Soft-World International Corp.  •  二月 2007 - 二月 2008

1. Took over and investigated the game engine (code name: Typhoon).
2. Provided technical support of the game server.
3. Assisted the Section Manager in managing the staff assigned to work on server techniques and server engineer recruiting.

Section Manager (Led 6~8 members)

Dynasty International Information Corp.  •  二月 2003 - 十二月 2006

Dept.: Program Design Section
Responsibilities:
1. Dominated R&D of the new game engine (code name: Flame Dragon).
2. Responsible for designing and coding the networking communication framework (based on I/O completion port & overlapped I/O)
3. The leading programmer of game servers.
4. Decided the R&D strategies and direction of the relevant technologies, managed the programmers' schedules of projects.
5. Deeply participated in the coordination of important issues and the decision of project policies.
Achievement:
Led about 8 programmers to create a brand new game engine from nothing to being, whose code name is 'Flame Dragon'. The principal products based on the "Flame Dragon" engine are 'Flame Dragon Online', 'The Legend of King Hùng' and 'Kalpa Online'.

Software Engineer

Dynasty International Information Corp.  •  九月 2002 - 一月 2003

Dept.: Program Design Section
Responsibilities:
1. Designed and coded the networking communication framework (Winsock / TCP protocol).
2. Designed the multithreading architecture.
3. Investigated and designed the container library using static memory allocation.

Supervisor (Led 4~6 members)

Zong Chin Technology Corp.  •  七月 2002 - 八月 2002

Dept.: Game Programming Dept.
Responsibilities:
In charge of the R&D strategy’s decision and managing the schedule of the projects, including new updates and following maintenance.

Supervisor (Led 4~6 members)

Zong Chin Technology Corp.  •  十月 2001 - 六月 2002

Dept.: Game Design Dept.
Responsibilities:
Interlocked the Game Producer of ‘Princess Banenn’ at the same time. Adjusted the original project plan that had been behind schedule and resolved the communication problems between departments. Finally, we completed and published this game on time.

Vice Supervisor

Zong Chin Technology Corp.  •  十月 2000 - 九月 2001

Dept.: Game Programming Dept.
Responsibilities:
Developed the most CAI (Computer Assisted Instruction) productions of that company. Besides, I also took part in the technical book writing and wrote some chapters about the features of OOP using C++.

Achievement:
In the period of one year and a half from 2000/03 to 2001/09, I completed and published more than ten CAI products. These products’ high quality won the recognition of our senior supervisors and customers and became the company’s main source of profit.

Software Engineer

Zong Chin Technology Corp.  •  三月 2000 - 九月 2000

Dept.: Game Programming Dept.
Responsibilities:
Researched and designed the Framework using VB and DirectX for the CAI (Computer Assisted Instruction) and developed the relevant productions.

Education

Tatung University

Computer Science and Information Engineering  •  1991 - 1996

National Tainan First Senior High School

 •  1987 - 1990

Language

  • Chinese        Reading/Writing/Listening/Speaking: Excellent
  • Taiwanese   Native Speaker
  • English         Reading/Writing: Fair     Listening/Speaking: Little
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