20 Years Experience

Senior Systems Architect & Principal Engineer

I specialize in low-level system programming, high-complexity codebases, and building massive, scalable architectures - building custom runtimes, WASM engines, real-time AI streaming systems, Full Stack web/mobile development and compilers.

Note: Due to confidentiality agreements, much of the software I developed for previous companies cannot be publicly shown. The projects listed here are independent production systems and demonstrations, each built in a different engineering domain to illustrate my work across areas such as streaming infrastructure, game engines, compilers, AI systems, and low-level runtime development.

My Personal Production Platforms

Live Streaming + AI

Long Binary City

A highly optimized adaptive private live streaming server architecture engineered to handle, convert, and broadcast limitless media protocols without latency bottlenecks.

  • Universal Protocol Support: Handled natively via GStreamer (WebRTC, WebSocket, RTSP, RTMP, HLS, SRT, + dozens more).
  • Real-Time AI Vision: Transforms standard CCTV camera feeds into AI-powered analyzers capable of detecting events (e.g., fire, intrusion, anomalies) and sending real-time push notifications.
GStreamer FFMPEG C Go Rust Node.js Javascript WebRTC WebSocket PostgreSQL
Browser-Native Engine

Blocky Game Engine

Blocky is a cloud-based, browser-based 2D game engine and editor that helps beginners to learn game development. Its intuitive interface and simple JavaScript language for scripting makes building and sharing games easy.

React TypeScript SASS WebGL GraphQL

Engineering Case Studies

Custom C/WASM Rendering Engine

A data-driven custom 3D rendering engine built in C and compiled to WASM. Features a custom memory allocator (zero fragmentation) and handles 2000+ Bullet physics bodies at 60FPS in a 380kb payload.

Read Case Study →

Jeefo Canvas Library

A lightweight, purely software-based rasterizer written from scratch in ~700 lines of C code. No graphics APIs, just raw CPU math and raw memory manipulation pixel by pixel.

Live WASM Demo →

Custom Compilers & Virtual Machines

In the summer of 2017, I spent three months writing my very first programming language parser for JavaScript from the ECMA-262 specification, including a preprocessor and transpiler with strict ES5, ES6, and ES8 support. It's called @jeefo/ecma_parser. Since then, I have built three programming languages from scratch, including their lexers, bytecode compilers, and virtual machines.

AST Explorer →

Native C Pitch Detector (Flutter)

A high-performance cross-platform microphone pitch detector using the Yin FFT algorithm. The core DSP engine is written in pure C for maximum performance. To get the job done across platforms, I implemented native bindings in Java (Android) and Swift/Objective-C (iOS) to bridge into Dart for Flutter. Currently used in production for a Mongolian Morin Khuur (морин хуур) tuning app.

View on GitHub →