Ssu-Chieh Chang

章 思 傑 (RJ)

Software Engineer

loch0728@gmail.com
+886 9xx-xxx-xxx
New Taipei City, Taiwan

About Me

Software engineer with over 3 years of development experience, specializing in backend and full-stack applications. Passionate about creating clean, intuitive, and high-performance user experiences. Skilled in web architecture design with hands-on experience in RoR, Python FastAPI, AWS, and other tech stacks. Additionally, I have 11 years of game development experience, including 7 years as Lead Game Designer directing product and project strategy. Fully participated in 3 game projects from inception to market launch. Possess comprehensive project development and management experience, excelling in game design, product integration and optimization, and data analysis. Maintain high curiosity for new technologies, enjoy sharing knowledge, optimistic and proactive, thrive in team collaboration, and continuously learn and grow.

Work Experience

Senior Backend Engineer

CYBERBIZ Co., Ltd.

Jul 2022 - Present Taipei City
  • Responsible for POS system feature development, optimization, and maintenance.
  • Led new project development for Store Assistant application.
  • Integrated invoice system for POS and EC e-commerce platforms.
  • Assisted with EC e-commerce customer service, including system debugging and optimization.

Senior Game Designer Team Lead

WANIN Entertainment (Taipei Branch)

Oct 2017 - Jul 2021 Taipei City
  • Planned short, medium, and long-term game development roadmaps and high-level architecture, evaluated timelines, strategies, and feasibility, and confirmed resource requirements.
  • Conducted game core design, ideation, and validation, introduced agile development, and rapidly iterated features to build prototypes.
  • Led team to establish game systems and business models.
  • Designed game data backend query system for balance and monitoring purposes.
  • Established internal and external product testing, including multiple school partnerships, designed surveys to collect user feedback and analyzed data for adjustments and decision-making.
  • Trained designers to independently execute cross-department feature production.
  • Completed research, analysis, implementation, and production of music and sound effects systems.

Game Designer Team Lead

XPEC Entertainment Inc.

Oct 2014 - Oct 2017 New Taipei City
  • Researched IP-licensed game content and analyzed to establish core design direction and guidelines for mobile version.
  • Led and executed character, combat, system, level, UI/UX, and music/sound effects design direction and specifications.
  • Designed and produced approximately 15 characters.
  • Collaborated with Korean publisher NEXON and traveled to Korea to confirm operational details.
  • Mentored designers to work independently in their areas of expertise and preference, and trained junior designers to adapt to team workflows and company culture.

Game Designer Team Lead

Volcano Technology Co., Ltd.

Sep 2010 - Sep 2014 Taipei City
  • Researched RTS technology and editor features, and collaborated with programmers to build design tools.
  • Executed and produced level, character, numerical, UI/UX design, and system design.
  • Designed and created 13 hero characters including background, appearance, actions, and skill presentations.
  • Cross-department collaboration with programming, art, and QA departments.
  • Developed esports system and collaborated with Wayi Spider esports team for game balancing.

Education

Bachelor of Statistics and Information Science

Fu Jen Catholic University

Sep 2000 - Jun 2005

Technical Skills

Frontend

React TypeScript Tailwind CSS HTML/CSS

Backend

Ruby on Rails Python FastAPI Python Flask Node.js Express MySQL PostgreSQL MongoDB REST API

DevOps & Tools

Git Docker AWS EC2 AWS S3 AWS CloudFront AWS CloudWatch GitHub Actions Nginx Linux

Languages

Mandarin (Native) English (Intermediate)

Personal Projects

PDF Hero

Forever free, privacy-first PDF conversion tool.

Japanese Syllabary Practice

Japanese syllabary learning tool for random practice of Hiragana and Katakana to quickly memorize kana pronunciation.

Gooddamn

Online planning poker tool dedicated to agile development teams.

Professional Projects

CODE 2040

Taiwan's first large-scale multiplayer third-person shooter PC game

  • Developed using Unreal 4 engine, researched custom third-person and first-person shooter systems
  • Started OB on custom Launcher platform on January 20, 2021
  • Global OB launched on Steam on February 2, 2021, with over 200,000 wishlist additions before launch
  • Exceeded 120,000 global downloads across Launcher and Steam by March 2021
  • Led overall game design direction, designer management, progress tracking, and cross-department collaboration
  • Solely responsible for all sound-related design and collaborated with sound engineer to implement various technologies
  • Partnered with ROG to support Aura Sync lighting effects for various hardware in-game

Dynasty Warriors: Unleashed

Collaborated with KOEI Japan to obtain "Dynasty Warriors 7" license, developed by full Taiwan team on Unity for mobile platforms.

  • Published globally (excluding China and Japan) by Nexon Korea on both platforms.
  • Over 500,000 pre-registrations before launch; ranked #1 in download charts on both platforms for consecutive weeks after launch, accumulating over 10 million downloads.
  • Top 10 revenue ranking on both platforms in Taiwan within first week, first-month global revenue reached 700 million TWD, maintaining average monthly revenue of 150 million TWD for 6 consecutive months.
  • Served as Design Team Lead from project inception, fully participated in entire process from conception to market launch.
  • Managed personnel while also responsible for multiple systems, interface, and character skill design and production.
  • Direct collaboration experience with Nexon Korea, including visits to Korea for inspection and meetings.

God of Destiny

Taiwan's first self-developed MOBA PC game, developed using custom engine.

  • Independently researched RTS and DotA-Like game technologies.
  • Collaborated with late manga master Zheng Wen for 2D character design.
  • Founding designer member, responsible for multiple core systems, levels, 13 characters, and interface design and production.
  • Promoted to Team Lead after 2.5 years, led team through market launch.
  • Collaborated with Wayi Spider esports team for game balancing.
  • Over 10 countries' publishers inquired about licensing at ChinaJoy 2013.
  • Open beta reached 150,000 members within one week, opening over 120,000 matches.

Honors & Awards

Best Popular Poster Award

2025

Academia Sinica - Probability and Data Science 2025

Event Photos