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C++ engineer
- Considering positions:
- C++ engineer, Unity 3D developer, Разработчик игр, Unity developer, Unity 3D програміст, C++ програміст, Программист микроконтроллеров, Інженер-програміст, Аналітик, Data analyst
- Age:
- 49 years
- City of residence:
- Kyiv
- Ready to work:
- Kyiv, Remote
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ROMAN MAZITOV
Kyiv, Ukraine | Open to remote/international roles
Email: [open contact info ](look above in the "contact info" section)
Mobile: [open contact info ](look above in the "contact info" section)
Telegram: https://t.me/zhjvfy
PROFESSIONAL SUMMARY
Senior Unity Developer with 10+ years of commercial game development experience and 5+
years working with large-scale Unity C# codebases. Specialized in gameplay systems
development, legacy code stabilization, performance optimization, and long-term production
maintenance. Strong background in architecture design, debugging complex systems, and
mobile game development (iOS, Android, Tizen).
CORE TECHNICAL SKILLS
Unity (URP), C#, OOP
Gameplay Systems Architecture (combat, AI, inventory, progression, economy, save/load)
Debugging & Legacy Code Refactoring
Performance Optimization (GC reduction, draw call optimization, batching, async loading)
ScriptableObjects, ECS/DOTS, Addressables, Dependency Injection
Architecture Patterns: MVC, MVVM, Event-Driven, Clean Architecture
Mobile Optimization (CPU/GPU profiling, memory optimization)
Unity Profiler, Frame Debugger, Memory Profiler
Custom Editor Tools & Tooling Automation
Shader Graph, HLSL (production shaders)
Backend Integration (PlayFab, REST APIs)
Git (version control)
SQL, C, C++, JavaScript
PROFESSIONAL EXPERIENCE
Qubit Labs — Unity Developer
2024–2025 | Mobile | Team size: 12
● Owned debugging and stabilization of a long-term (5+ years) Unity C# codebase.
● Identified and resolved complex legacy issues across gameplay systems and core logic.
● Performed deep code analysis and refactoring to improve maintainability and stability.
● Designed and implemented new gameplay mechanics within an existing production
architecture.
● Participated in architectural decisions and code reviews.
● Applied profiling tools to optimize memory usage, GC allocations, and rendering
performance for mobile devices.
Omen Games — Unity Developer
2021–2024 | Android, Tizen
● Developed ~10 hyper-casual game prototypes using Unity.
● Implemented core gameplay loops, progression systems, UI, and monetization systems
(ads, IAP).
● Built reusable gameplay modules and rapid prototyping architecture.
● Optimized performance for mobile platforms.
24Play — Unity Developer
2019 | Mobile (iOS, Android)
● Developed single-player mobile games using Unity.
● Implemented gameplay systems, UI, save/load, and monetization features.
Uni-Bit Studio Inc. — Unity Developer
2017–2018 | Mobile
● Developed mobile games (Unity, C#).
● Implemented gameplay mechanics and platform-specific integrations.
Freelance Unity Developer
2015–2017
● Developed mobile game features and full gameplay systems for client projects.
Tellurion Mobile — Unity Developer
2013–2015 | Kyiv
● Developed single-player mobile games (iOS, Android, BlackBerry) using Unity.
● Implemented gameplay systems, UI, save systems, and in-app monetization.
EARLY CAREER
Kiev Institute of Land Relations — Lead Engineer
2000–2013
● Developed and maintained geodesic data processing software (C, C++).
● Built client software for cadastral database systems.
● Designed workflow automation utilities.
EDUCATION
Bashkir State University
Specialist Degree in Informatics and Programming
1993–1998
LANGUAGES
Russian — Native
Ukrainian — Intermediate
English — Pre-Intermediate
Kyiv, Ukraine | Open to remote/international roles
Email: [
Mobile: [
Telegram: https://t.me/zhjvfy
PROFESSIONAL SUMMARY
Senior Unity Developer with 10+ years of commercial game development experience and 5+
years working with large-scale Unity C# codebases. Specialized in gameplay systems
development, legacy code stabilization, performance optimization, and long-term production
maintenance. Strong background in architecture design, debugging complex systems, and
mobile game development (iOS, Android, Tizen).
CORE TECHNICAL SKILLS
Unity (URP), C#, OOP
Gameplay Systems Architecture (combat, AI, inventory, progression, economy, save/load)
Debugging & Legacy Code Refactoring
Performance Optimization (GC reduction, draw call optimization, batching, async loading)
ScriptableObjects, ECS/DOTS, Addressables, Dependency Injection
Architecture Patterns: MVC, MVVM, Event-Driven, Clean Architecture
Mobile Optimization (CPU/GPU profiling, memory optimization)
Unity Profiler, Frame Debugger, Memory Profiler
Custom Editor Tools & Tooling Automation
Shader Graph, HLSL (production shaders)
Backend Integration (PlayFab, REST APIs)
Git (version control)
SQL, C, C++, JavaScript
PROFESSIONAL EXPERIENCE
Qubit Labs — Unity Developer
2024–2025 | Mobile | Team size: 12
● Owned debugging and stabilization of a long-term (5+ years) Unity C# codebase.
● Identified and resolved complex legacy issues across gameplay systems and core logic.
● Performed deep code analysis and refactoring to improve maintainability and stability.
● Designed and implemented new gameplay mechanics within an existing production
architecture.
● Participated in architectural decisions and code reviews.
● Applied profiling tools to optimize memory usage, GC allocations, and rendering
performance for mobile devices.
Omen Games — Unity Developer
2021–2024 | Android, Tizen
● Developed ~10 hyper-casual game prototypes using Unity.
● Implemented core gameplay loops, progression systems, UI, and monetization systems
(ads, IAP).
● Built reusable gameplay modules and rapid prototyping architecture.
● Optimized performance for mobile platforms.
24Play — Unity Developer
2019 | Mobile (iOS, Android)
● Developed single-player mobile games using Unity.
● Implemented gameplay systems, UI, save/load, and monetization features.
Uni-Bit Studio Inc. — Unity Developer
2017–2018 | Mobile
● Developed mobile games (Unity, C#).
● Implemented gameplay mechanics and platform-specific integrations.
Freelance Unity Developer
2015–2017
● Developed mobile game features and full gameplay systems for client projects.
Tellurion Mobile — Unity Developer
2013–2015 | Kyiv
● Developed single-player mobile games (iOS, Android, BlackBerry) using Unity.
● Implemented gameplay systems, UI, save systems, and in-app monetization.
EARLY CAREER
Kiev Institute of Land Relations — Lead Engineer
2000–2013
● Developed and maintained geodesic data processing software (C, C++).
● Built client software for cadastral database systems.
● Designed workflow automation utilities.
EDUCATION
Bashkir State University
Specialist Degree in Informatics and Programming
1993–1998
LANGUAGES
Russian — Native
Ukrainian — Intermediate
English — Pre-Intermediate
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The candidate's resume is posted at https://www.work.ua/resumes/10548127/?puid=385226