- Using server-side and client-side rendering techniques, reduce re-rendering unnecessary, optimized image assets, and code splitting, resulted in a reduction of the website's loading time from 2 seconds to 0.8 seconds.- Developed 2+ projects from scratch, utilizing JWT token base to enhance web authentication and improve web security.- Optimized website SEO by implementing structured data markup and improving meta tags, resulting in a 20% increase in organic traffic within three months.- Using i18n for a multi-language website, resulting in a 20% increase in the customer base in international markets.- Using the SOLID and DRY principles to build reusable React components, resulting in a 50% reduction in development time for subsequent projects.- Conducted performance profiling and optimization, resulting in a 30% reduction in battery consumption and improving user device experience on mobile app.- Developed 5+ comprehensive dashboards for multiple products that provide key metrics (MAU, DAU, AUM, Retention, etc) to managers and stakeholders. Streamlined data requests and conducted ad-hoc analyses for various teams, including marketing, accounting, and the Board of Directors, helping to inform decision-making and improve operational efficiency.

- Developed 5+ customized dashboards tailored to the specific needs of a real estate company. These dashboards provided insights into key metrics such as sales revenue and product performance.- Assisted in migrating legacy code to newer frameworks, improving maintainability and codebase stability while reducing technical debt. This led to a 30% decrease in code complexity and a 25% increase in feature delivery speed.- Improved mobile-responsive design, boosting mobile users conversion rate by 12%.- Identified and resolved critical production issues, decreasing downtime by 30% and enhancing application stability.- Using the Redux library to manage global state, improvement state consistency and centralized state.