Mark Sinitski
Krakow, Lesser Poland Voivodeship
Summary
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Rockstar🎓
Top SchoolMark Sinitski is a front-end-focused software engineer with nine years of experience building user-centric applications across React, React Native and the broader JavaScript/TypeScript ecosystem. He has repeatedly sped delivery and reduced code duplication—migrating and unifying mobile apps to React Native to halve the codebase and architecting CI/CD on AWS to triple feature throughput. A/B testing, analytics-driven decisions, and TDD are core to his approach, and he’s implemented client-side analytics with near-guaranteed delivery to capture richer UX data. His work spans from performance-minded parsers using headless browsers to reliable real-time features with Socket.IO, and he pairs practical UI tooling (Figma, Storybook) with data stores from Redis to ClickHouse. Based in Krakow with a background in applied mathematics, he combines quantitative thinking with pragmatic engineering to turn experiments into measurable product improvements.
10 years of coding experience
7 years of employment as a software developer
bachelor, Applied Mathematics, bachelor, Applied Mathematics at Yanka Kupala State University of Grodno
English, Russian, Russian
Github Skills (15)
ripple10
material-table10
flex10
primereact10
datatable10
bootstrap10
ripple-effect10
bootstrap-table10
grid10
tree10
react9
ui-components9
charts9
react-components9
chrome1
Programming languages (1)
Github contributions (5)
yikstinis/creactive
Nov 2024 - Jun 2026
Contributions:1 PR, 170 pushes, 31 branches in 1 year 7 months
yikstinis/crm
Dec 2016 - Dec 2016
Contributions:54 pushes, 1 branch in 1 day
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