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I'm Robert John Ulep, a Senior Software Engineer with 15+ years of experience spanning COBOL mainframes, cross-platform mobile, modern web, and game development.
Each chapter of my career unlocked new skills and harder challenges.
Started in legacy systems, mastering COBOL, JCL, DB2, and mainframe architecture across enterprise-scale codebases. Built a foundation in discipline, precision, and large-system thinking.
Moved into the .NET ecosystem, building cross-platform mobile applications with Xamarin Forms and .NET MAUI. Shipped production apps for Polaris, AXA, and personal projects using clean architecture and MVVM.
Expanded into modern web, building responsive interfaces with React, Next.js, and Tailwind CSS. Applied component-driven architecture and server-side rendering to deliver fast, accessible experiences.
Added DevOps to the toolkit, designing Azure CI/CD pipelines, automating build and deployment workflows, and streamlining release processes across mobile and web platforms.
Exploring game development with Unity, prototyping 2D games, learning physics systems, and applying C# scripting skills in a creative context.
When not coding, I'm exploring open worlds, tackling RPG raids, and building Unity prototypes. Gaming reinforces the same skills I use daily: persistence, strategic thinking, and attention to craft.