Kyryl Stronko Email & Phone Number

Kitchener, Ontario, Canada

Canada

United States

Aspira (Contracted by AgileEngine)- Migrated ECommerce SSR application from React 15 to React 16 with lazy loading support which brought the loading speed of the application from 5 to less than 1 second- Revamped development setup, saving over 1 hour daily for each developer.- Implemented integration with Spot2Nite platform for booking RV spots in short-term- Improved Mixpanel coverage for marketing and analytics purposesInsightSoftware (Contracted by AgileEngine)- Orchestrated the migration from JavaScript Backbone code to TypeScript React/Redux, resulting in increased reliability and a 60% decrease in feature development time- Determined and optimized performance bottlenecks, boosting application loading speed by 30%.- Engineered code splitting and lazy loading strategies with Webpack, reducing overall bundle size by 50%- Guided the process of memory leak elimination in the legacy Angular.js app to retain our biggest customer- Led, architected, and delivered 100+ features for the React/Redux SPA and Node.js/Express service including complex data grids and visualizations using Echarts, AG Grid, and Leaflet- Established unit tests best practices to cover over 60% of the codebase with meaningful tests

Kharkiv, Ukraine

- Authored JavaScript courses, resulting in a 90% employment rate for students.- Trained and mentored 20+ students.

Kharkiv Region, Ukraine

Key technologies: HTML, CSS, JavaScript, jQuery, Node.js, React.js, Next.js, Express, i18next, RESTful API- Accomplished redesign of the responsive website that generated 30% of overall leads for marketing team- Cooperated with marketing team to create pixel-perfect campaign emails and ad-hoc pages for the most important customers- Took the initiative to spearhead and conduct extensive research on migrating to the Next.js app, resulting in the development of a customized boilerplate app.- Optimized SEO and maintained Google Analytics tools

Kharkiv