HN

Hyeonjoon Nam

Systems & Performance Engineer — GPGPU, HPC, Engine Architecture

Specializing in GPGPU, High-Performance Computing, and Engine Architecture. Engineered a CUDA Boids simulation achieving 85.23% Compute Throughput across 1.04M particles, cut UE5 GPU frame time by 42% (40ms → 23ms), and improved Nintendo Switch gesture accuracy from 6% → 86%.

Skills

Core technical stack used across performance engineering, gameplay systems, and tooling.

Languages

C++CCUDAPythonAssembly (AVR)C#GLSLPowerShell

Systems & Performance

Nsight ComputeParallel ComputingBare-metal ProgrammingWin32 APILock-free Sync

Tools

DockerJenkinsCI/CDPerforceGitJira

Engines & Graphics

Unreal Engine 5UnityCustom C++ EngineNintendo Switch (Dev Kit)HLSLOpenGL

Background

Concise overview of experience and education relevant to systems and gameplay engineering.

Experience

Republic of Korea Army

Squad Leader & Sniper Observer · 10/2020 – 04/2022

  • Served in Military Police SDT for counter-terrorism missions.
  • Led an 8-member squad for 4 months under high-pressure operations.
  • Achieved top-tier physical readiness ratings during service.

Education

DigiPen Institute of Technology

B.S. in Computer Science in Real-Time Interactive Simulation

Expected 04/2026 · GPA 3.67/4.0

  • Dean’s Honor List: Fall 2024, Fall 2025.

Featured Projects

High-Performance Computing, Engine Optimization, and DevOps Infrastructure.

Heterogeneous HPC Simulation SystemDemo

Heterogeneous HPC Simulation System

01/2026 – Present

Real-time simulation of 1M+ swarming particles, controlled by custom AVR hardware.

C++CUDAAVR (ATmega328P)Win32 APINsight Compute
Triad of ValorDemo

Triad of Valor

09/2025 – Present

3D co-op action RPG in Unreal Engine 5 — battle together in real-time.

C++Unreal Engine 5Unreal InsightsLumenVSMp4bot
Spell It OutDemo

Spell It Out

11/2025 – 12/2025

Nintendo Switch RPG where you cast spells by swinging the Joy-Con like a real wand.

Nintendo Switch SDKC#UnityGitHub Actions
The Children Are SleepingDemo

The Children Are Sleeping

09/2024 – 04/2025

First-person UE5 horror game — hide from an AI stalker and solve puzzles to escape.

Unreal Engine 5C++Behavior TreesGameInstance/SaveGamePerforce

Other Works

They AreDemo

They Are

09/2023 – 12/2023

Custom C++ tower defense — protect your base against escalating monster waves.

C++OpenGLCustom EngineA* PathfindingBenchmark HarnessData-Driven Balancing
p4bot — DevOps InfrastructureDemo

p4bot — DevOps Infrastructure

09/2025 – Present

Discord bot that broadcasts live Perforce file locks — no more invisible checkout conflicts.

PythonDockerJenkinsPerforce CLI
BastionDemo

Bastion

03/2024 – 06/2024

Rebuilt tower defense in C++ — place towers and tune stats live with an in-game editor.

C++OpenGLImGuiFMODData-Driven DesignState Machines
Suspense DefenseDemo

Suspense Defense

03/2023 – 06/2023

Top-down tower defense with procedurally generated maps — no two runs look the same.

C++Custom EngineA* PathfindingCellular AutomataMediator Pattern
Still ReachingDemo

Still Reaching

12/2025 – 01/2026

Online co-op puzzle platformer — unlock doors, swap skills, and reach the goal together.

Godot (GDScript)Custom Level EditorEOS Multiplayer (EOSG)GitHub

Contact

Feel free to reach out.