• Created a web crawler using Selenium to automate data scraping from a commercial data cloud and gathered information of over 20 million potential customers and increased the conversion rate of the company's email campaign by 20%.• Developed a Chrome extension using JavaScript, CSS and HTML for populating the data collected from the web crawler into an Excel spreadsheet via one single click.• Constructed a CRM system using React, Node.js and PostgreSQL.• Built REST APIs with… Show more • Created a web crawler using Selenium to automate data scraping from a commercial data cloud and gathered information of over 20 million potential customers and increased the conversion rate of the company's email campaign by 20%.• Developed a Chrome extension using JavaScript, CSS and HTML for populating the data collected from the web crawler into an Excel spreadsheet via one single click.• Constructed a CRM system using React, Node.js and PostgreSQL.• Built REST APIs with Express.js for CRUD operations on MySQL.• Designed and developed an e-commerce website using Spring Boot, React, Bootstrap, REST API, Spring Security and MongoDB to migrate the company’s pet product business from Amazon to our own website and promote the company’s brand.• Created the entity relationship diagram (ERD) for the e-commerce application and built the database schema and indexing over relational database MySQL.• Integrated Hibernate with Spring Boot for Object Relational Mapping to (ORM) to automatically create/update tables based on class properties.• Wrote server-side functions to read/write data via Redis. After implementing a 32GB Redis cluster with LRU cache eviction, database overhead is reduced by 5% and page load time is increased by 20%.• Developed mobile app for the e-commerce application with React Native, supporting both iOS and Android platforms. Show less

• Developed a customer portal using Django and Angular to digitalize the agency’s adoption processes, shortening the processing time by 80%.• Created a mobile app for the agency using React Native and UX design using Axure RP.

● Closely worked with the team of 5 to sell pet products through Amazon and other online stores● Started a digital marketing LLC and designed a website ( https://www.catureusa.com )with the team to promote pet products and ensured proper display on various mobile devices