Lyubomir Rusev, Game Development Developer in Sofia, Bulgaria
Lyubomir Rusev

Game Development Developer in Sofia, Bulgaria

Member since January 7, 2019
Lyubomir is very passionate about solving complex software development problems. He has a strong interest and proven experience in game development and computer graphics in addition to business applications. He's a fast learner and can quickly adapt to new technologies.
Lyubomir is now available for hire




Sofia, Bulgaria



Preferred Environment

Windows, Visual Studio, Git, Unity

The most amazing...

...project I’ve done is innovative mix of computer vision and game engine technologies that were used in the creation of the first VR puppet theater in the world.


  • Founder, CEO

    2017 - PRESENT
    Sandbox Ltd
    • Developed an innovative MR (mixed reality) solution for immersive live theatrical performances.
    • Co-developed a VR biking experience for Oculus Go headsets.
    • Created a VR exploration mini-game for headsets with 3 degrees of freedom (3Dof).
    • Implemented remake of old 2D platformer jump and run game.
    • Designed and developed a virtual tour application based on VR and 360 photos/videos.
    • Engineered Android native multimedia app in lock screen mode deployed on museum kiosk based on the Elo device.
    • Developed image editing, management, and printing desktop software.
    Technologies: C++, C#, Java, Unity, Android Studio, OpenCV, QT, Image Magick
  • Contractor, Software Developer

    2018 - 2019
    Progress Telerik
    • Developed JustMock framework support for mocking C# language features like local functions, async methods, and non-public generics.
    • Refactored internal unit test infrastructure to enable easier unit test code sharing and execution with different test runners like MsTest, NUnit, and XUnit.
    • Performed customer support and assistance to JustMock clients.
    Technologies: C++, C#, .NET Framework, .NET Core
  • Co-Founder, CTO

    2015 - 2018
    Parizagames Ltd
    • Developed the hero/tower defense game "Mad Gardener" and published it on App Store, Google Play, Universal Windows Platform, and Steam.
    • Designed and balanced gameplay with difficulty progression, in-game currency, and in-app purchases.
    • Established project management infrastructure including code repositories, issue trackers, and build pipeline.
    • Created and supported company website and social network pages.
    • Presented the game at events, game conferences, and meetups.
    Technologies: C#, Unity
  • Software Developer

    2012 - 2015
    Chaos Group
    • Integrated core V-Ray functionality into Autodesk Maya.
    • Implemented new features following the internal development process.
    • Collaborated with the QA team on customer support and bug fixing.
    Technologies: C++, MEL Script, Maya
  • Gameplay Programmer

    2011 - 2012
    • Developed the economic system of "Assassin's Creed 3: Liberation."
    • Implemented carousel UI control that was used to visualize most item collections in the game.
    • Created gameplay components using the internal engine statechart based system.
    • Provided improvements to the GUI framework of the game engine.
    Technologies: C++
  • Software Engineer

    2009 - 2011
    IKinema Ltd.
    • Integrated IKinema library into Trinigy Vision engine, Unigine engine, and Havok Physics.
    • Implemented a software protection system based on Reprise RLM license manager.
    • Created an installer system for IKinema products.
    • Designed and developed IKinema end-user API, documentation, and tutorials.
    • Provided sample ports of IKinema to Lua scripting and Java.
    Technologies: C++, Lua, Trinigy Vision, Unigine, Havok, Reprise RLM
  • Software Engineer

    2008 - 2009
    Dagger Games Studio
    • Participated in the development of action/RPG games "Dimensity" and "Hazen" that were published by "Strategy First."
    • Re-factored the scripting system of the in-house game engine by moving the game script code from the main assembly to separate DLLs for each level.
    • Implemented most of the gameplay scripts in the game "Hazen."
    • Developed HLSL shader to simulate and visualize ripple effect when characters move inside water pools.
    Technologies: C++, DirectX, HLSL



  • Languages

    C, C++, C#, Java, C#.NET, ActionScript, Lua, HLSL, SQL
  • Frameworks

    Unity, Unity2D, Unity3D, Unity 3, Qt, Qt 5, .NET, .NET Core
  • Tools

    Microsoft Visual Studio, Unity 5, MonoDevelop, Git, Tortoise Git, Android Studio, Qt Widgets, C#.NET WinForms, Direct3D 9, Direct3D, Subversion (SVN), TortoiseSVN
  • Paradigms

    Object-oriented Programming (OOP), Procedural Programming, Design Patterns
  • Other

    OOP Designs, Game Development, Gameplay Development, Games, 3D Games, 2D Games, Mobile Games, Video Games, Android Games, Augmented Reality (AR), Virtual Reality (VR), Oculus Go, Unity Editor Scripting, Algorithms, Sorting Algorithms, Directed Acrylic Graphs (DAG), Directed Acyclic Graphs, Scene Graphs, Game AI, HTC Vive
  • Platforms

    Win32, Oculus, Oculus Rift, Android
  • Libraries/APIs

    Win32 API, DirectX, Microsoft Foundation Class Library (MFC), GDI(+), Android API
  • Storage

    SQLite, Unity Cloud Build


  • Master's degree in Informatics and Information Security
    2008 - 2010
    St. Cyril and St. Methodius University - Veliko Tarnovo, Bulgaria
  • Bachelor's degree in Informatics
    2004 - 2008
    St. Cyril and St. Methodius University - Veliko Tarnovo, Bulgaria

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