Misha is currently unavailable
Misha Marfenko
Verified Expert in Engineering
Game Designer and Developer
Warsaw, Poland
Toptal member since September 17, 2024
Bio
Misha is a passionate and skilled software engineer and game developer. He excels at prototyping interactive and engaging projects using Unity and Unreal Engine 5. Committed to delivering top-quality results, he always approaches every project with personal dedication. A fast and efficient worker with strong technical, math, and problem-solving abilities, Misha is a collaborative team player eager to contribute to innovative, fast-paced environments.
Portfolio
Lumion
Unreal Engine 5, C++, MacOS, Plugins, 3D Rendering
AppliedVR, Inc.
Unity3D, C#, Virtual Reality (VR), 3D, Shaders, Visual Effects (VFX), Jenkins...
Radar Labs, Inc.
Unity, Mobile, iOS, Android, C#, Geolocation, WebGL, Unity SDK...
Experience
- Game Development - 8 years
- C# - 8 years
- Unity - 8 years
- Game Design - 8 years
- Python - 6 years
- C++ - 6 years
- Blender - 5 years
- Unreal Engine 5 - 3 years
Preferred Environment
Unity, C#, Python, Git, Unreal Engine 5, C++, Blender
The most amazing...
...project I've developed is Button Animator Pro, a tool for UI on Unity Asset Store with over 200 copies sold, showcasing my mastery of Unity and C# programming.
Work Experience
Senior Unreal Developer
2025 - PRESENT
Lumion
- Developed and optimized custom rendering features in UE5, significantly improving visual fidelity and performance.
- Architected geometry generation and real-time visualization systems.
- Led graphics performance profiling and mentoring within the team, reducing GPU/CPU bottlenecks.
Technologies: Unreal Engine 5, C++, MacOS, Plugins, 3D Rendering
Senior VR Developer
2025 - 2025
AppliedVR, Inc.
- Developed core VR interaction systems in Unity, including cursor logic, pop-up windows, animated UI, and a progression system used across multiple therapeutic experiences.
- Built modular onboarding flows with timeline-driven tooltips and animated UI, improving user guidance and feature discovery.
- Collaborated with QA and product teams to resolve high-priority bugs, reducing reported issues during the final release cycle.
- Wrote unit tests and contributed to QA automation, increasing test coverage and ensuring stability of core systems.
Technologies: Unity3D, C#, Virtual Reality (VR), 3D, Shaders, Visual Effects (VFX), Jenkins, Audio, 360° Video, Technical Art, User Experience (UX), User Interface (UI)
Unity Developer
2024 - 2025
Radar Labs, Inc.
- Developed a Unity plugin that seamlessly integrated native SDKs written in Kotlin (Android) and Objective-C (iOS), enabling real-time location tracking and geofencing within Unity applications.
- Implemented a robust permission management system for iOS and Android, ensuring proper handling of geolocation permissions and significantly reducing integration errors for developers.
- Developed comprehensive documentation for the Unity SDK, ensuring clear integration guidelines and reducing developer onboarding time.
- Tested the plugin extensively on iOS, Android and WebGL-compatible versions, addressing platform-specific device constraints to verify stability and performance.
Technologies: Unity, Mobile, iOS, Android, C#, Geolocation, WebGL, Unity SDK, React Unity WebGL
QA Lead Task Reviewer - LLM
2024 - 2025
Highbrow Technology Inc
- Managed a team of 12-15 annotators, ensuring smooth delivery and high-quality standards for each task.
- Implemented quality control measures, enhancing the accuracy and usability of data for training LLMs.
- Coordinated cross-functional efforts to meet FAANG client project deadlines and expectations.
- Performed math and coding annotation tasks covering 50-100 use cases, ensuring accuracy and clarity.
Technologies: Data Analysis, Management, QA Leadership
Math Instructor
2024 - 2024
Mathnasium
- Provided highest quality math tutoring experience to students spanning grades from 1 to 12.
- Created an inclusive, supportive atmosphere and inspired students to develop skills and passion for math.
- Mastered team teaching, working and collaborating with lots of students in a fast-paced setting.
Technologies: 3D Math, Mathematics
Game Developer
2024 - 2024
Digital Nomad Entertainment
- Developed and implemented core game mechanics in C++ and UE5, ensuring engaging gameplay.
- Designed 3D open-world levels and AAA visual effects (VFX). Enhanced the visual appeal and atmosphere of the game.
- Optimized game performance, reduced load times by 20%, and increased frame rates by 15%.
- Collaborated with a multidisciplinary team and managed a team of five people to integrate gameplay elements seamlessly.
Technologies: Unreal Engine, C++, Blueprint, Game Design, Blender, Perforce, Virtual Reality (VR), Augmented Reality (AR), Extended Reality (XR), 3D Games, Online Multiplayer, Mobile, 3D Rendering, 3D Modeling
Informatics Teacher
2023 - 2024
Unbreakable Ukraine Foundation
- Taught subjects that included Python, Blender 3D, databases, web design, game design, and C++ to grades five to 11 for almost a year.
- Introduced coding concepts through engaging, game-based projects, resulting in significant transformations in grades eight and nine during our Python sessions.
- Created an inclusive, supportive learning environment, transcending the traditional teacher-student dynamic.
- Inspired students to develop a passion for IT by incorporating engaging activities and projects.
- Prepared my own learning materials and lesson structure using science, technology, engineering, and mathematics (STEM) integration.
Technologies: Python, C++, Web Development, Blender, Databases, Scratch, Arduino, Robotics, Java, CSS, HTML, 3D Rendering, 3D Modeling
Assistant Teacher | Translator
2022 - 2022
Warsaw University of Technology
- Worked 10 hours weekly as an assistant teacher for C++, Java, and web design courses.
- Provided translation services for professors. Cultivated deep friendships with peers and meaningful connections with professors.
- Gained valuable insights and skills in teaching, compassion, and mutual understanding, contributing to personal growth and enhancing the university community.
Technologies: Java, C++, Web Development
Experience
Button Animator Pro
https://assetstore.unity.com/packages/tools/gui/button-animator-pro-269146Button Animator Pro is a powerful tool for animating UI buttons that enables the quick and efficient creation of visually appealing, interactive buttons, saving time and improving performance. It helps developers create professional-quality buttons with complex behaviors in a few clicks.
After a year of development, I sold over 200 copies and generated over $4,500 on the Unity Asset Store. During this project, I mastered all aspects of Unity Editor Scripting and C# programming.
After a year of development, I sold over 200 copies and generated over $4,500 on the Unity Asset Store. During this project, I mastered all aspects of Unity Editor Scripting and C# programming.
The Stealth Game
https://mmisha.itch.io/stealth-gameThe game is inspired by the popular stealth game Hitman and designed to challenge players' ability to think and plan their future actions. Currently, the game serves as a demo and will be further improved and polished, and new levels will be added.
Users play as stealth assassins; their mission is clear: eliminate every target. The users choose whether to execute their plan with precision and stealth or unleash chaos with noise and bloodshed; the choice is theirs.
Users play as stealth assassins; their mission is clear: eliminate every target. The users choose whether to execute their plan with precision and stealth or unleash chaos with noise and bloodshed; the choice is theirs.
Racing Game
https://mmisha.itch.io/racinggameI developed a casual, fun racing game as a personal passion project. It serves as a demonstration of potential. and currently features three maps and seven unique vehicles to explore. For this project, the goal was to create a game where users can have fun. The game is still in the middle of development and will be further improved.
FEATURES
• Realistic weather
• Advanced suspension and wheel simulation
• Unique vehicle properties
• Vehicle destruction
• Sound effects music
• Physics
FEATURES
• Realistic weather
• Advanced suspension and wheel simulation
• Unique vehicle properties
• Vehicle destruction
• Sound effects music
• Physics
VR Minigolf
https://mmisha.itch.io/vr-mini-golfThis is a simple yet very playable minigolf game developed in Unity for VR. It was created over the span of 10 days with approximately 40-50 hours of effort. The game Cloudlands: VR Minigolf on Steam inspired the project and aims to bring a fun and immersive minigolf experience to VR players.
FEATURES
• Hand tracking and an intuitive control system using VR hand tracking.
• The main menu includes customizable graphics and game settings.
• Five unique, challenging, and diverse levels are designed for a fun minigolf experience.
• Level progression system where levels unlock sequentially as a player completes each.
• Progress saving, where progress is saved so a player can resume where they left off.
• Very bad trailer.
• Music and sound effects. Enjoy pleasant music and sound effects throughout the game.
• Respawn system that allows easy repositioning if a player gets stuck.
• Full GitHub repository.
FEATURES
• Hand tracking and an intuitive control system using VR hand tracking.
• The main menu includes customizable graphics and game settings.
• Five unique, challenging, and diverse levels are designed for a fun minigolf experience.
• Level progression system where levels unlock sequentially as a player completes each.
• Progress saving, where progress is saved so a player can resume where they left off.
• Very bad trailer.
• Music and sound effects. Enjoy pleasant music and sound effects throughout the game.
• Respawn system that allows easy repositioning if a player gets stuck.
• Full GitHub repository.
Education
2020 - 2024
Bachelor's Degree in Computer Science
Warsaw University of Technology - Warsaw, Poland
Skills
Libraries/APIs
WebGL, OpenGL, Node.js
Tools
Git, Blender, Perforce, Unity SDK, GitLab CI/CD, Jenkins, ASM64
Languages
C#, Python, C++, JavaScript, SQL, Scratch, C, Java, CSS, HTML, TypeScript, JavaScript 6, Bash
Frameworks
Unity, .NET, Unreal Engine, Blueprint, Unity3D, .NET Core, ASP.NET
Platforms
Mobile, Android, Arduino, Azure, iOS, Docker, Unix, MacOS
Storage
Databases, MySQL, NoSQL
Paradigms
Agile, App Development, Management
Other
Unreal Engine 5, Game Design, Unity Editor Scripting, Game AI, 3D, Game Development, Gameplay Development, Game Physics, Virtual Reality (VR), Level Design, Visual Effects (VFX), Mathematics, Back-end Development, Communication, Debugging, Debugging Tools, GUI Design, Game Tools Development, UI Development, Game Art, 3D Games, 3D Modeling, 3D Rendering, Multiplayer, Augmented Reality (AR), Extended Reality (XR), Online Multiplayer, User Experience (UX), User Interface (UI), APIs, Web Development, Robotics, Data Analysis, Data Analytics, Shaders, Unity Shaders, Front-end Development, API Applications, Networking, Database Applications, CI/CD Pipelines, 3D Math, Geolocation, QA Leadership, Audio, 360° Video, Technical Art, React Unity WebGL, Plugins
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring