Rex Ying

Unity Technical Lead / Senior Unity Engineer

Rex Ying

Game systems / Architecture / XR / Multiplayer

Kaohsiung, Taiwan ted56129@gmail.com github.com/s46129 QR code for Rex Ying's online resume Online resume

Unity engineer and technical lead with 8+ years of experience taking games and interactive installations from early technical planning through release. My work spans Nintendo Switch, location-based VR, mobile AR, and multiplayer systems. I currently lead a Unity team while continuing to design architecture and implement core systems.

Experience

WOWWOW Technology Co., Ltd.

Kaohsiung, Taiwan

  1. CTO2024 – Present
  2. Technical Lead2022 – 2024
  3. Senior Unity Engineer2021 – 2022
  4. Unity Engineer2018 – 2021
  5. 3D Artist2017 – 2018
  • Lead architecture and technical decisions for games, XR experiences, interactive installations, and cross-platform applications.
  • Lead and mentor a Unity team of 4 (previously up to 7). With experience in 3D art and Unity development, align design, art, and engineering constraints into actionable specifications and delivery plans.
  • Use an AI-assisted development workflow to turn requirements into verifiable specifications and tasks, incorporating test-driven development (TDD) to improve traceability.
  • Build reusable Unity packages for authentication, VR safety, venue mapping, and photography workflows.

Selected Work

BIRDIE WING -Golf Girls' Story-

Nintendo Switch / Tech Lead / Japanese IP

Gameplay capture showing the trajectory preview system.
Official game introduction (Nintendo)
  • Coordinated design requirements and led the art team, defining Switch-specific polygon, texture, and rig specifications to align art and engineering handoffs and schedule deliveries for more efficient production.
  • Served as technical liaison with the Japanese animation IP partner, presenting weekly progress and coordinating approvals for 3D character adaptation, animation direction, and game content.
  • Designed golf-ball physics, trajectory prediction, game-flow architecture, and character dialogue systems.
  • Optimized grass rendering for Switch hardware and integrated eShop and DLC asset-unlocking features.
Rex Ying01 / 03

Selected Work

Welcome to PILI Universe

Location-based VR / Multiplayer systems / Renowned Taiwanese IP

Shared venue view with players from separate groups.Project coverage (Bahamut GNN · Chinese)
  • Designed a multi-group architecture for ~50 concurrent users in independent groups sharing one physical venue.
  • Built separate coordination layers for within-group gameplay and cross-group position awareness.
  • Visualized nearby players from other groups as ghost avatars to reduce physical collision risk.
  • Reduced group admission intervals from ~25 to 5 minutes and packaged the infrastructure as reusable SDK-style modules.

Monster Fruit Academy

Nintendo Switch / Tech Lead / Taiwanese animation IP

Boss encounter designed from concept through implementation.

A parkour action game with card-based strategy, playable solo or with up to four players.

Official game introduction (Nintendo)
  • Led technical development for a ~12-person team, owning gameplay systems and key product decisions.
  • Built a level editor that let planners configure stages, enemies, and spawn layouts independently.
  • Built a Unity editor tool for designers and artists to verify dialogue, voice lines, and performance timing directly, syncing with an online database to simplify external localization work.
  • Owned core game systems and designed a multi-phase boss encounter that shifted runner gameplay into bullet hell.
Rex Ying02 / 03

Additional Work

ケロロ軍曹 超共鳴展限定アプリ であります!

iOS / Android · AR · AI Integration

Technical liaison for a Japanese IP exhibition app combining AR photography, AI-triggered web content, and iBeacon access with QR fallback.

Venue-exclusive App Introduction
On-site touchless interaction

Kaohsiung Municipal Gangshan Hospital Interactive Kiosk

Windows · Kinect · Touchless Interaction

Integrated and deployed a touchless children's game, mapping head and hand movement to gameplay and owning on-site delivery.

Watch demo
Mobile app interface

Grandma Fruity's Secret

iOS / Android · Mobile AR · Product Owner

Owned a three-person Public Television Service IP project from client communication through implementation and store release.

Watch demo

Expertise

Game development
Unity · C# · Gameplay systems · Physics · Rendering optimization · Custom editor tools
XR & spatial
OpenXR · Meta XR · VIVE · AR Foundation · Vuforia · ARKit · Kinect · Infrared touch interfaces
Multiplayer & integration
Unity Netcode for GameObjects · Socket.IO · WebSocket · MQTT · OSC · Firebase
Platforms
Nintendo Switch · Windows · iOS · Android
AI workflow
Packaged the team's development methods as AI agent skills for Claude Code, Cursor, and Codex, layering methodology, tech-stack conventions, and project facts by lifespan. Tasks are sized S/M/L to set how much spec, testing, and docs they need; docs split into minimal code comments, AI docs for agents, and HTML docs for people. Batched ready-for-agent issues to subagents, closing auto-verified ones and listing device checks for acceptance, with tasks tracked in Notion. AI workflow guide

Education

National Ilan University

B.S. in Mechanical and Electro-Mechanical Engineering · 2015

Japanese-Language Proficiency Test (JLPT) N5 · Passed

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