Leonardo G.
Senior Unity Game Developer | Mobile, WebGL & PC | Backend Integration
I’m a professional Systems Engineer with more than 8 years of experience in software development, specializing in Unity, C#/.NET, mobile apps, games, and backend systems. I specialize in: - Unity 2D & 3D development - C# gameplay programming - Mobile games for iOS and Android - WebGL, AR and VR experiences - UI/UX implementation - In-App Purchases, subscriptions and ads - REST API and third-party SDK integrations - Performance optimization and bug fixing - App Store and Google Play publishing - Maintaining and upgrading existing Unity projects ⚙️ C# / .NET Backend Development I also work with: - C# / ASP.NET / .NET Core - REST APIs and backend services - SQL and database integrations - Authentication and user systems - Docker, Nginx, IIS and Linux deployments - Legacy system maintenance and modernization My experience combines Unity development and backend engineering, allowing me to handle both the interactive side of a project and the systems behind it. I’ve worked on mobile games, children's apps, AR/VR experiences, WebGL projects and production backend systems. Core Skills: Unity | C# | .NET | Game Development | Mobile Apps | iOS | Android | WebGL | AR | VR | REST APIs | Backend Development | API Integration | IAP | App Store | Google Play
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $3.1k
Billed in all: $78,686$79k
$1.5k in the last 6 months
Across 29 contracts
Earnings, last 30 days
Skill rankings: Top 14% in In-Game Advertising
Ranked by MRR among everyone on Upwork with the skill.
- #14In-Game Advertising98 freelancers · 🇧🇴 #1Top 14%🇧🇴#1 of 1
- #30Game Customization159 freelancers · 🇧🇴 #1Top 19%🇧🇴#1 of 1
- #69PC Game296 freelancers · 🇧🇴 #1Top 23%🇧🇴#1 of 1
- #75Game Prototype325 freelancers · 🇧🇴 #1Top 23%🇧🇴#1 of 1
- #107Game UI/UX Design563 freelancers · 🇧🇴 #1Top 19%🇧🇴#1 of 1
- #123Mobile Game Development568 freelancers · 🇧🇴 #1Top 22%🇧🇴#1 of 1
- #141Virtual Reality785 freelancers · 🇧🇴 #1Top 18%🇧🇴#1 of 2
- #148Mobile Game715 freelancers · 🇧🇴 #1Top 21%🇧🇴#1 of 2