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Viktor Grigorev
Staff-level Unity Tech Lead specializing in multiplayer and rendering performance
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Unity/C# tech lead specializing in multiplayer systems and networking reliability: built a transaction/prediction-based multiplayer inventory system using snapshots/deltas that eliminated duping and supports very large item transfers via RPC. Also implemented an LLM-driven localization pipeline (SGLang on DGX Spark with Gemma Translate) with automatic OpenAI fallback and human QA, and has shipped VR work on Meta Quest 3 with cross-platform input abstraction (mobile/VR/web).
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Key Strengths
- Owned and shipped multiplayer inventory system end-to-end (transactions + prediction + snapshots/deltas) preventing item duplication/ownership bugs
- High-throughput inventory RPC handling (500–1000 items per transfer without hitting limits; typical usage 5–10 items)
- Built LLM translation pipeline integrated with Unity Localization (SGLang on DGX Spark using Gemma Translate)
- Reliability design with automatic OpenAI fallback when self-hosted translation server is overloaded plus human verification loop
- Multiplayer session architecture using Unity Netcode + Lobby API with dual transports (Unity Relay and Steam relay) and reconnect handling
- Debugged live desync issues (NetworkList extra deltas) using network logs, debugger, and RPC analysis
- Cross-platform VR/mobile/web input abstraction layer enabling shared gameplay actions across very different input modalities
- VR performance optimization experience on Meta Quest 3 under tight frame budgets
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