Ruslan Kyba
Senior Frontend Developer at Fiverr
Kyiv, Ukraine
Summary
🤩
Rockstar🎓
Top SchoolRuslan Kyba is a Senior Frontend Developer with 11 years of experience building and architecting high-scale fintech and hardware-integrated systems from Kyiv, Ukraine. He specializes in Node.js, React, and TypeScript, and has led development of ATM/kiosk management platforms that handle hundreds of devices, real-time monitoring, KYC/AML flows, and complex cash-handling hardware integrations. Comfortable across the full stack, he combines pragmatic architecture design with hands-on coding to keep systems reliable under real-world conditions and to tame large legacy codebases. An active open-source contributor, Ruslan has improved core UI behavior in the widely used Material-UI library and fixed subtle nested state-machine bugs in a functional FSM project, showing attention to UX details and correctness. He favors clean, self-documented code, reliable messaging, and observability, and seeks teams that value ownership and engineering quality.
11 years of coding experience
14 years of employment as a software developer
Bachelor's degree, Mechanical Engineering, Bachelor's degree, Mechanical Engineering at National University «Kyiv Aviation Institute»
Github Skills (15)
finite-automata10
material-design10
uid10
javascript10
react-components10
front-end-development10
ui-design10
state-machine10
react10
react-component10
finite-state-automata10
testing10
lib9
css9
code-optimization7
Programming languages (11)
Github contributions (5)
mui/material-ui
Mar 2017 - Sep 2019
Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:10 commits, 20 PRs, 133 comments in 2 years 6 months
Contributions summary:Ruslan primarily contributed to the UI of the Material UI library. They focused on fixing padding, replacing font icons with SVG icons, and making adjustments to the TextField component to meet design guidelines. Furthermore, the user addressed label flicker issues in webkit browsers and made several code style improvements throughout the project. The contributions span across components like Table, Input, and other supporting elements.
reactmuimaterialjavascriptmaterial-design
matthewp/robot
Mar 2020 - Mar 2020
🤖 A functional, immutable Finite State Machine library
Role in this project:Backend Developer
Backend DeveloperContributions:6 commits, 4 PRs, 24 comments in 1 day
Contributions summary:Ruslan primarily contributed to the `robot` library by fixing bugs related to nested finite state machines. They addressed issues in the `machine.js` file, correcting the logic for child machine transitions and state changes. The user also added tests to ensure the correct behavior of nested state machines, demonstrating a focus on stability and functionality of the library. Furthermore, the commits show efforts to improve the code style and overall efficiency.
gleamfinite-statefunctional-programmingfsm-libraryfsm
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