Vilnius, Lithuania
Juozas Žilys
Senior full-stack engineer on enterprise systems — .NET, React, and whatever the problem asks for.
Off the clock: indie games, music, and artistic side projects.
5 years on one enterprise platform · 780+ merged PRs · 20+ side projects
Featured work
See all-
Modernizing an inherited enterprise monolith
780+ merged PRs into a large .NET / React ERP — custom Roslyn analyzers, source generators, DDD refactors, warehouse automation, and an AI vision pipeline.
.NET 10 · C# 14 · React · TypeScript · MariaDB · Elasticsearch · SignalR · Hangfire · Roslyn
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2B Task Orchestrator
A desktop app that runs a multi-agent LLM orchestrator on a real codebase — tiered specialists, persistent sessions, live execution view.
Electron 35 · React 18 · Zustand · TypeScript · Tailwind · Framer Motion · Claude CLI
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Luna Online — legacy MMORPG modernization
A years-long effort to revive a shuttered 2004 Korean MMORPG: ~37,000-file C++ codebase brought from Visual Studio 2003-era tooling to VS2022, with all core engine and server solutions building.
C++ · MSBuild / VS2022 · DirectX · SQLite · clang-tidy · Python
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ASCII Psychomath Adventure
An educational ASCII adventure game that teaches mathematical concepts through procedural generation and interactive exploration — built on MonoGame with a serious test suite.
C# 14 · .NET 10 · MonoGame 3.8 · xUnit
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goated-erd-fr
A free, open-source database-schema visualization tool that handles 200+ tables cleanly and produces git-friendly output.
Rust · Tauri 2 · React 18 · TypeScript · React Flow
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The Book of the Two and the Three
A ~22,000-word illustrated math book written as scripture — every verse is verifiable geometry, physics, or computation — typeset by a custom Python pipeline with hand-coded SVG plates.
Python · SVG · Headless Chrome · Markdown
Looking to talk?
Best reached by email or LinkedIn — happy to chat about senior / staff roles, or interesting indie / open-source collaborations.