Денис

DENYS PETRENKO
UNITY DEVELOPER
Dnipro, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | GitHub: github.com/EndWys | LinkedIn:
[відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @DenisPitt

PROFILE
Senior Unity Developer with 7+ years of experience in mobile and multiplayer games. Experienced in Photon
Fusion networking, data-driven optimization, custom editor tools, and the full product lifecycle from
prototype to global release.

WORK EXPERIENCE
CODEFATHER STUDIO | Unity Developer | 2025–2026
Projects: Arcfall: Extraction Shooter, Threads of Echo, Prime Football Manager, Royal Empire - Slots Casino, Tile
Match - Zen Master
• Multiplayer: Engineered a high-performance mobile extraction shooter system using Photon Fusion
(Dedicated Server) and implemented state synchronization for 200+ entities.
• Systems & backend: Designed custom matchmaking and ELO systems over WebSockets; collaborated
with Python/FastAPI teams on REST APIs and server-side IAP validation; implemented JWT authentication.
• Tooling: Developed a Node.js narrative editor and grid construction system, enabling designers to build
branching storylines and maps without engineering support.
• Analytics & stability: Led analytics work with BigQuery and Looker to optimize retention and session
length; reduced ANRs and crashes using Google Play Vitals and Firebase Crashlytics; resolved iOS build
conflicts across SDKs.
4ENJOY STUDIO | Unity Developer | 2022–2024
Projects: Merge Villa, Makeover Merge, Kingdom Merge, Magic Mansion, Riverside Merge, and others.
• LiveOps: Developed monetization events and features for Merge and Match-3 games to support IAP
revenue and engagement.
• Full-stack collaboration: Extended .NET/Entity Framework backend logic and implemented client-server
communication through REST APIs.
• Performance: Reduced build size and loading times with Addressables and memory profiling.
• Gameplay systems: Built 3D character behaviors using state machines and NavMesh.
FREELANCE | Unity Developer | 2024–2026
• Delivered rapid prototypes and core gameplay mechanics for mobile games across multiple genres.
• Integrated 2D/3D assets, VFX, and animations into production-ready systems.
INDIE DEVELOPMENT | 2016–2022
• Managed full-cycle development and publishing of Android games, achieving several thousand installs
through targeted ASO and marketing.

SKILLS
Engine & architecture: Unity, C#, OOP, SOLID, design patterns, VContainer, Zenject
Networking: Photon Fusion, NGO, FishNet, Mirror, WebSockets, REST APIs
Analytics & LiveOps: Firebase (Full Stack), AppsFlyer, Facebook SDK, BigQuery, Looker Studio
Performance: Mobile optimization, memory/CPU profiling, Addressables, build size reduction, Google Play Vitals
Graphics: URP, HDRP, shaders, VFX Graph, animation
Production: IAP integration, Google Play/App Store publishing, Git, Agile (Scrum)

EDUCATION & LANGUAGES
PSTU | Faculty of Information Technology, Computer Science | 2019–2024
Ukrainian: Native | English: Advanced

Denys Petrenko | Unity Developer