Worked on the topmonks/hlidac-shopu repository to enhance price data extraction and reliability across three merchant scrapers, focusing on iglobus.cz, pilulka.cz, and mironet. Applied JavaScript and web scraping techniques to improve discount price handling, clean current price data, and ensure accurate extraction of original prices for discounts. Addressed a race condition in the data push process, which increased the reliability of downstream pricing analytics and customer-facing displays. Emphasized data cleaning to reduce manual reconciliation and pricing anomalies, establishing a more resilient foundation for future scrapes. The work leveraged front end development skills to support robust, timely price feeds.