Loading profile…
Glib Korniienko
Looking for a jobSenior Frontend Developer
Senior Frontend Developer at Sigli who improved rendering speed by 15–20% and built a reusable React component library.
PolandSenior Frontend Developer at Sigli
Experience
Senior Frontend Developer
Defined frontend architecture for a data-intensive insurance case management platform using React, TypeScript, and JavaScript. Built a performant data-fetching layer with RTK Query, reducing perceived load times by 30%, and drove code quality across a 5-person team.
ReactTypeScriptJavaScriptRedux RTK QueryRedux toolkitCypressPlaywrightPHPSymfonyWebflowPerformance OptimizationComponent LibrariesREST APIsCode Review
Frontend Developer
Built and evolved production features using React, TypeScript, and Redux in a scalable SPA for enterprise AgTech clients. Implemented real-time dashboard updates via WebSockets and integrated frontend with backend REST APIs.
ReactTypeScriptReduxWebSocketsREST APIsJestReact Testing LibraryDrag And DropSPA
QA Automation Engineer
Built automated test suites in Python and Selenium, integrated into CI pipelines, reducing production regression rate by approximately 40%. Transitioned into frontend development through hands-on code contributions and self-initiated upskilling.
PythonSeleniumCI CDTesting AutomationReactJavaScript
Education
National Technical University 'Kharkiv Polytechnic Institute'
Master's Degree in Computer Science from the National Technical University 'Kharkiv Polytechnic Institute'.