KOZUNENKO@PORTFOLIO

Vladyslav
Kozunenko

Software engineer. Eight years in production — gameplay and engine systems, mixed reality, embedded hardware and developer tooling.

Vladyslav Kozunenko

I build systems and the tools that run them. Eight years in production: gameplay and engine work in Unreal, Unity and Godot; mixed-reality software; embedded firmware on real vehicle rigs; and web tooling in TypeScript. C++, C# and Python across all of it.

Electronics engineer by training, which is why the hardware work was mine to take.

Lately I build for agents. key-amnesia is an Apache-2.0 secrets manager that lets a coding agent use an API key without ever reading its value.

Second degree in opera singing. Before that, a metal vocalist — the band once opened for Jinjer.

LANGUAGES
C++, C#, Python, TypeScript
ENGINES
Unreal Engine 4/5, Unity, Godot
GAMEPLAY & AI
behaviour trees, StateTree, navigation and octree pathfinding, procedural content, animation systems, motion matching
SYSTEMS & TOOLING
DOTS/ECS, Jobs/Burst, compute shaders, custom visual-scripting runtimes, CI and release tooling
EMBEDDED & HARDWARE
Arduino/ESP32, sensor rigs, OpenCV
AGENTS
agent harnesses, SDKs against third-party agent platforms, secrets tooling for agents
NOW

  1. key-amnesia

    2026

    Creator and sole author

    Apache-2.0 secrets manager for coding agents. The agent can use an API key without reading its value.

    Python · IPC · OS-level auth · pytest · GitHub Actions · PyPI

    RELEASES
    16
    VERSION
    0.4.15
    DOWNLOADS
    6,554
    STARS
    71
    TESTS
    537 PASS

  2. Satan's Ball

    2026

    Solo developer — game design, every system, UI, animation and art style

    Original single-player game, built alone in Unity on DOTS/ECS. The Steam page is public, coming soon 2026.

    Unity · C# · ECS/DOTS · Jobs/Burst · Compute Shaders · Steamworks
PRODUCTION

  1. Tower Dominion

    2025

    Gameplay and systems programmer

    Tower-defence strategy game released on Steam, iOS and Android by Nvizzio Creations.

    Unity · C# · Job System · Burst · IAP · iOS · Android

    Credit: Nvizzio Creations

  2. Flying enemy AI (Unreal Engine 5)

    2025

    Gameplay/AI programmer

    A movement-pattern framework and octree flight for flying enemies, on an unreleased Unreal Engine 5 project.

    Unreal Engine 5 · C++ · StateTree · Behavior Tree · GAS · Niagara

    Credit: Nvizzio Creations

  3. Shelter Manager

    2021

    Gameplay programmer — one of three developers, full production cycle

    Post-apocalyptic shelter management game shipped to Steam by Hamsters Gaming.

    Unity · C# · Steamworks · DOTween · ScriptableObjects · MVC

    Credit: Hamsters Gaming

  4. Visual scripting framework (mixed-reality driving simulator)

    2023

    Designed and built it

    Turing-complete visual scripting language for a mixed-reality driving simulator, built at NXRT to replace Fungus.

    Unity · C# · UI Toolkit · ScriptableObjects · JSON · graph editor tooling

  5. Mixed-reality operator application

    2023

    Developer

    Tablet application that streams the mixed-reality headset view to the operator. Built at NXRT.

    Unity · C# · UI Toolkit · sockets · video streaming

    Credit: NXRT

  6. Eyelash extensions

    2021

    Unity developer

    A timing game rebuilt weeks after the nail one, on DOTween and a proper game loop, with hand-written soft-body physics for the glue.

  7. Pixel-flower island

    2021

    Unity developer

    It parses an uploaded image and rebuilds it as a field of flowers, one per pixel.

  8. Nail painting

    2021

    Unity developer

    A timing game on a banded slider. The first version of the mechanic the eyelash game later rebuilt.

  9. Horse racing

    2021

    Unity developer

    Place a bet, tap to run, swipe to jump.
NOOSPHERE — 2019

  1. Gagarin Park

    2019

    Built the augmented-reality application

    An augmented-reality walk in a public park. QR codes, a cosmonaut, and small games, built in Unity with Vuforia.

    Unity · C# · Vuforia

    Credit: DEMI

  2. Meteorites

    2019

    Co-founder and CTO, then CEO/CTO

    A VR astronomy lesson in Unreal Engine 4, built after a pivot from training software and delivered with a planetarium.
PERSONAL

  1. Between Multiverse

    2022

    Personal project — sole author

    One project in two engines: squad AI started in Unity, continued in Unreal.

    Unity · C# · Unreal Engine · Behavior Trees

  2. Hack It Up

    2024

    Personal project — sole author

    Top-down cyberpunk with parkour as the core. Motion matching, and my own toon shader.

    Unreal Engine 5 · Motion Matching · HLSL

  3. The desk

    2026

    Author

    A Linux desktop built as a designed object. This site takes its visual language from it.