• Led the redesign of a critical microservice, resulting in a 60% reduction in databaseload through advanced caching strategies, enhancing system responsiveness.• Improved Interaction to Next Paint (INP) score from 800ms to under 200ms by optimizing code and offloading non-essential tasks from the main thread.• Collaborated with the team to strategically delay JavaScript loading for below-the-fold components, resulting in a significant 25% reduction in Total Blocking Time (TBT).• Spearheaded the optimization of Elasticsearch, by revamping it to only update necessary documents, resulting in a 60% reduction in system load.• Enhanced page speed by optimizing First Contentful Paint (FCP), Total Blocking Time (TBT), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS)• Implemented a feature slug on the homepage, leading to increased traffic by over 23% to relevant models.