Game engineer, 7+ years in the industry, 6 of them at one studio: mobile and PC titles in C# and Unity plus the .NET services behind them. Hired for three things — moving legacy engines forward without stopping the product, turning prototypes into architecture that holds tests, and putting AI agents to real work in a delivery pipeline.
Full resume · LinkedIn · karim.kimsanbaev@gmail.com · @KarimGood
Legacy that cannot stop. Moved a live Unity client from 2017 to Unity 6.3 across six LTS steps, each closed by a tagged checkpoint and verified by a compile, a 5v5 match, a standalone build and asset bundles.
Prototypes into architecture. Restructured a 343-file game mode into layered assemblies: EditMode tests 98 → 289 plus 14 PlayMode end-to-end, ScriptableObject configs 29 → 0, mutable statics 9 → 0, the largest system 1665 → 780 lines.
AI agents that carry weight. Replaced spreadsheet task tracking with a platform where agents do the work: ASP.NET Core and Blazor WASM over MongoDB, an own MCP server exposing 13 tools, n8n orchestration with a custom node for agent steps. Built to an MVP in a single session at 41/41 unit tests, then verified by a task that ran the whole pipeline end to end.
Diagnosis under load. Traced a live DDoS through 46 client sessions and 2 crash dumps to its amplification root in the RUDP layer, removed it behind a failover flag and covered the change with regression tests.
nival/Prime-World — the 2014 MOBA released as open source. Audited component licences and purged proprietary vendor SDKs from the entire git history rather than the current tree.
aevien/master-server-toolkit — two merged pull requests on MongoDB profile serialisation and GUID format.
architect-review — Claude Code plugin that reviews a codebase across 22 criteria with 17 agents in parallel and compiles a scored summary.
cyber-cat — Unity game where you solve C olympiad problems; the code you write compiles and runs server-side in Docker. Playable on itch.io.