Kostiantyn Mysnyk
Founder at Out of the Box Systems
Poznan, Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolKostiantyn Mysnyk is a founder and systems engineer with 11 years building high-performance backends, real-time streaming, and IoT/AI infrastructure, currently leading a boutique consultancy in Poznan. He specializes in Rust systems programming—architecting low-latency video engines, terabyte-scale ETL pipelines, and performant geodata APIs that achieved 30x speedups—while integrating AI-powered automation into production workflows. As Ukrainian Rust Community Fellow he launched a Rust+ML specialization and scaled bootcamps that attracted hundreds of applicants, reflecting his strength in ecosystem building and education. His background in graphics and GPU-accelerated rendering includes pioneering billion-cell geological visualizations and contributions to the widely used three.js 3D library, where he fixed core WebGLRenderer and math bugs. Comfortable moving between C++, WebGPU/WebGL, and modern Rust, he blends deep low-level optimization with pragmatic product-facing architecture. Notably, he frames engineering work through automated testing and CI/CD practices that consistently improve velocity and reliability.
11 years of coding experience
6 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
Ukrainian, English
Github Skills (5)
webgl10
javascript10
3d9
colors9
html5
Programming languages (10)
Github contributions (5)
mrdoob/three.js
Jul 2014 - Feb 2015
JavaScript 3D Library.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8 commits, 2 PRs, 14 comments in 6 months
Contributions summary:Kostiantyn primarily focused on debugging and fixing issues within the `three.js` library, particularly related to the `WebGLRenderer` and mathematical components like `Color` and `Euler`. They addressed bugs in the `toArray` methods across several classes and made documentation updates. Their work involved direct modifications to core rendering and math functionalities within the library.
virtual-realitysvgwebglcanvasjavascript
Wandalen/wLoggerSocket
Mar 2020 - Jul 2022
Contributions:5 PRs, 310 pushes, 2 branches in 2 years 4 months
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