Hleb Rahoisha

About

Unity gameplay engineer with hands-on experience spanning AI behavior-tree architecture (Behavior Designer), authoritative multiplayer networking (Photon/Mirror), and aggressive VR (Meta Quest) optimization. Built designer-friendly tooling (Excel-driven balancing, prefab automation bridging Marvelous Designer/Blender/Unity) and has experience mentoring juniors within an entity/HMVC-based architecture at Playtica.

Experience

Education

Key Strengths

• Architected reusable, data-driven AI patrol behaviors in Unity using abstract interfaces
• Refactored monolithic behavior-tree logic into atomic reusable nodes to improve scalability and designer flexibility
• Built authoritative, event-driven multiplayer systems (Photon/Mirror) with bandwidth-conscious synchronization
• Applied interpolation/prediction techniques to reduce visible snapping and mitigate latency-driven desync
• Deep VR/mobile performance optimization experience (Quest): draw calls, culling, shader/lighting/overdraw, CPU update loop reduction
• Solved VR GPU bottlenecks from skinned meshes by baking animations and swapping simplified meshes for distant/non-interactive NPCs
• Enabled rapid balancing via Excel-driven configuration and safe data validation
• Created internal Unity editor tools to automate prefab/material setup and streamline artist/designer workflows
• Mentored juniors through architecture guidance, code reviews, and technical talks (entities + HMVC patterns)