
Ubaida
Level 2
Code, Optimize, Innovate
Skills

See my services


Want to work on an hourly basis?
Tell Ubaida what you need.
$50
/
hourPortfolio
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.
149 Reviews
| (142) | ||
| (6) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
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...
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...
najoud58
Repeat Client

Qatar
This is my sixth time working with him, and every time he does a great job. He is very understanding, fast, and easy to work with. His code is always exactly what I need, and I always get full marks on my projects. He also explains everything step by step, which really helps me understand. I highly recommend him. He is one of the best.
najoud58
Repeat Client

Qatar
Honestly, working with him has been a great experience. He is very organized, fast, and pays attention to details. He always delivers exactly what is asked, and the quality of his work is always high. He makes things easy and clear, and I always feel confident with the final result. I would definitely work with him again and recommend him to others.
shumpulp0000
Repeat Client

United States
Great work as usual. Responds so quick and cares about the work. He puts in the effort and it shows once it is delivered carefully. He answers any concerning question and will let you know. I highly recommend him. Thanks!

