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C# Programming Game Development Java Mobile App Development Unity 3D
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Adam

@adamjan24

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5.0
6

4.1

4.1

100%

Full-Stack Game & Mobile Developer

$15 USD / Hour

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Flag of NETHERLANDS

Netherlands (2:11 PM)

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Joined on September 16, 2025

$15 USD / Hour

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I am a development architect specializing in game development and modern mobile application development. I build immersive games, feature-rich mobile applications, and cross-platform experiences with a strong focus on performance, scalability, and maintainable architecture. Game Development: Hands-on experience with Unity, Unreal Engine, and Godot, including gameplay programming, combat systems, procedural generation, AI/behavior trees, physics, animation systems, multiplayer networking, custom shaders, lighting, particle systems, VFX, Technical Art, and real-time performance optimization. Proficient in C# and C++ for developing complex, production-ready game systems across multiple platforms, including WebGL and immersive VR/AR experiences. I also work with advanced multiplayer technologies such as Photon Fusion and FishNet, as well as Unity Addressables for efficient asset management and scalable game architectures. My technical art and graphics workflow includes Shader Graph, VFX Graph, 3D asset integration, and profiling, supporting visually rich real-time experiences. Mobile Development: I develop native and cross-platform applications for iOS and Android using Flutter, Dart, React Native, Kotlin, Java, Swift, and SwiftUI. My expertise includes mobile architecture, responsive UI, RESTful APIs, API integration, authentication, Firebase, push notifications, real-time communication, local storage, offline functionality, native integrations, and performance optimization. Backend & Architecture: I also build scalable backend services and API-driven applications using Go (Golang), Gin Framework, RESTful APIs, PostgreSQL, Firebase, and modern backend architectures. I focus on clean architecture, efficient database design, secure API integration, scalability, and reliable communication between mobile applications and backend services. 3D & Technical Art: My game development workflow also includes 3D modeling, 3D animation, and game-ready asset creation using Blender, Maya, 3ds Max, Substance Painter, and ZBrush. I integrate optimized 3D assets, materials, and interactive elements into real-time game environments. Toolchain: Unity, Unreal Engine, Godot, Flutter, React Native, Android, iOS, C#, C++, Dart, Kotlin, Java, Swift, SwiftUI, Go (Golang), Gin Framework, RESTful API, PostgreSQL, Firebase, Blender, Maya, 3ds Max, ZBrush, Substance Painter, Shader Graph, VFX Graph, Photon Fusion, FishNet, Addressables, FMOD, Wwise, Git, GitHub, GitLab, Rider, Visual Studio, VS Code. I bring expertise across game development, mobile application development, and backend engineering, with additional strength in 3D, Technical Art, multiplayer systems, immersive experiences, and real-time performance optimization. Whether you need a high-fidelity game, multiplayer gameplay systems, a VR/AR experience, optimized real-time graphics, or a complete iOS/Android application, I focus on reliable engineering, optimized performance, and high-quality user experiences.

Verifications

On time

100%

On budget

100%

Accept rate

100%

Portfolio

Portfolio

14132148
14107852
14107831
14132148
14107852
14107831
5.0 · 6 Reviews
6 Reviews
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John Edward

5.0

$200 CAD

24 days ago

Retrofit Crash Fix Android 12+

Quick turnaround and the issue was fixed exactly as requested. Thanks!

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Elliot

5.0

$20 CAD

26 days ago

Android Avatar Placeholder Quick Fix

Great freelancer to work with. Fixed the bug quickly and exactly within the requested scope.

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Vincent

5.0

$290 CAD

10 months ago

Minimalist Android Shape Puzzle Game

Truly talented developer who deeply cares about quality and user experience - excellent communication with regular updates throughout, delivered polished work that exceeded all expectations, highly recommended for development projects.

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Flag of POLAND

Nikodem

5.0

$150 USD

10 months ago

Match-3 Android Prototype Needed

Very smart and highly professional!!! recommended!

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