Senior Technical Gameplay Engineer – Unreal Engine 4/5 at Square Enix Co. Ltd

- Designed full-featured combat ability system using Blueprint/C++ hybrid modules, including cast buffering, input prediction, animation montages, and status effect propagation. - Implemented AI utility systems integrating NavMesh-based threat prediction, crowd steering, and interruptible tasks—boosted largescale battle AI responsiveness by ~21%. - Collaborated with level designers to construct modular combat encounter templates using spline-based actor spawning, curved difficulty ramps, and sequencer-triggered event chains. - Integrated Gameplay Ability System (GAS) with tag-driven activation, cooldown interpolation, conditional interrupts, and attribute-based damage scaling. - Integrated UE4’s Sequencer and Gameplay Cue system for cinematic gameplay blends, ensuring frame-perfect animation sync and camera behaviour across high-stakes cutscenes. - Utilized UE5’s Nanite and Lumen systems to construct gameplay-aware lighting triggers and photorealistic environment interactions, increasing visual fidelity in real-time action scenes. - Built internal debugging overlay tools to display player state, latency metrics, animation timings, and error snapshots during test sessions—cutting dev-to-QA handoff time by 41%. - Created IK-driven animation syncing systems and context-sensitive companion behaviour using control rigs—improving cinematic transitions during co-op sequences by ~33%. - Developed advanced traversal and mobility mechanics including wall-running, double-jump transitions, dynamic vault detection, and terrain-aware navigation using spline & trigger volumes.

Senior Technical Gameplay Engineer – Unity at Square Enix Co. Ltd

- Developed cross-platform mobile combat systems using event-driven architecture and lightweight co-routine orchestration, enabling consistent gameplay across Android/iOS. - Reengineered Unity Animator state transitions with modular blend trees and scripted clip masking, reducing visual glitches and animation rework by ~40%. - Built responsive UI interaction frameworks using Unity UI Toolkit and custom shaders to support dynamic resolution scaling—improved mid-tier device UX rating by ~14% in live user analytics. - Led development of in-house localization asset manager, reducing regional string integration time by ~60% during global rollout phases. - Constructed an optimized asset bundling strategy using scriptable object-driven content pipelines, minimizing first-load times by 28% on average.