Hyeonjoon Nam
Software Engineer (C++ · Games & Tools)
About
I'm a C++ gameplay and tools engineer working in Unreal Engine 5 and custom C++/OpenGL engines. I've led 4–13 person teams as a tech lead and QA automation lead, building AI behaviors, pathfinding systems, and server-authoritative melee combat.
Recently I optimized A* pathfinding from 8.4s to 0.65ms in a 100-enemy benchmark, cut a wave-balance iteration loop from 62s to 15–17s with a data-driven loader, and shipped p4bot, a Perforce→Discord automation toolkit that turns 70–90 second manual lock checks into a 1–3 second glance and saves our 6-person team about 10–20 minutes per day.
I like building systems that are easy to debug, measure, and iterate on, and I'm especially interested in gameplay, AI, tools, and QA automation roles close to the engine.
Projects
Triad of Valor
UE5 co-op MORPG with server-authoritative combat and QA automation.
p4bot — Perforce→Discord Automation Toolkit
Self-hosted Perforce → Discord automation for lock checks and team awareness.
The Children Are Sleeping
UE5 first-person horror puzzle with weighted patrol AI.
Bastion
Custom C++ tower defense with data-driven waves and merge states.
They Are
2D strategic tower defense with A* pathfinding and 99%+ optimization.
Suspense Defense
Custom C++ wave-based defense with procedural maps and a Mediator hub.
Contact
Feel free to reach out.