
Ubaida
Level 2
Code, Optimize, Innovate
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Work experience
Java Game Systems Developer
Contractor • Freelance
Apr 2026 - Present • 3 mos
Built a custom external AI daemon for a Minecraft server from the ground up, including a real-time 3D OpenGL renderer, high-performance chunk and entity visualization, and a full packet mob system. Phase 1: Upgraded the server to Minecraft 26.1.2 (Java 25), rebuilt chunk rendering with greedy meshing and frustum culling, implemented VBO/VAO batching to eliminate renderer crashes, added live block-change rendering, and reorganized the codebase for maintainability. Phase 2 M1: Designed and shipped a complete packet mob system, daemon-side mob registry with Chronicle Wire IPC, ProtocolLib packet pipeline on the bridge (spawn, move, rotate, animate, entity status, despawn), keyboard-driven debug controls in the 3D renderer, and live mob visualization as a synced overlay in the OpenGL view. 33+ unit tests, zero real server entities.
153 Reviews
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alcantara_10

United States
Ubaida stood out on this project by writing code that was not only functional but deliberately structured for long-term use—modules were logically separated, variable naming was precise, and documentation actually reflected implementation rather than being an afterthought. When faced with a recurring...
mariyyyy
Repeat Client

Israel
Talented and professional, responds quickly, and solved our assignment in less time than required and according to the requested material.
alexandero111
Repeat Client

United States
One of the best developers I've worked with. Clear communication, reliable, and genuinely good to work with. Explains his work well and owns anything that needs fixing. Goes above and beyond what's asked. Highly recommend.
aureliamilicia
Repeat Client

Canada
I've been working with Ubaida for months now, and he consistently delivers exceptional work. Every project is completed on time, often faster than expected, without ever compromising on quality. He's incredibly detail-oriented, communicates clearly, and always makes sure everything is done exactly as...
llzameerll
Repeat Client

United Kingdom
This might be the 5th time Ubaida has helped me with the project. Hes always gone above and beyond making sure the work meets my criteria. I would highly recommend
