Sergii Kyryllov is a multidisciplinary engineer and entrepreneur with 14 years of experience building startups, robotics platforms, and web-scale SaaS systems from Kyiv and the Netherlands. He blends hands-on firmware and autopilot work (Ardupilot/PX4 on Pixhawk) with backend and frontend software architecture across Python, JavaScript, C#, and C++, and a persistent interest in big data. As a serial founder and former CTO/VP R&D, he has led product-to-scale efforts at multiple companies while now focusing on robotic systems at a stealth startup. Beyond leadership, he contributes to open-source—improving Mithril.js test coverage and fixing regressions—demonstrating attention to quality and maintainability that carries from tests to flight stacks.
A JavaScript Framework for Building Brilliant Applications
Role in this project:
Front-end Developer
Contributions:11 commits in 7 days
Contributions summary:Sergii primarily contributed to the testing suite of the mithril.js framework. Their commits added end-to-end tests and expanded the existing test coverage by incorporating more tests, specifically focusing on array item removal and config handler context. Furthermore, they addressed a specific regression issue within the framework, ensuring correct rendering of components. Their contributions mainly involve modifying the testing infrastructure and expanding test cases to improve the framework's robustness.
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Sergii Kyryllov - Making Robots at Stealth Startup