1. Worked collaboratively with a team to design and set up a microservices architecture on AWS using Spring Eureka and Spring Cloud Gateway. This allowed for efficient communication between different components of the system and ensured smooth operation.2. Successfully designed and deployed a user-friendly question-and-answer platform that could handle a large number of users, ensuring it was always available and resilient to faults.3. Optimized database performance by identifying and addressing slow queries, resulting in a significant 50% reduction in query response times. This improvement made the system more responsive and enhanced the overall user experience.4. Collaborated in the design and development of a Java ETL script, which effectively extracted data from a SQL database and loaded it into a GraphDB called ArangoDB. This streamlined the data transfer process and enabled efficient utilization of the new database technology.5. Integrated caching techniques to significantly reduce page load times, resulting in an impressive 70% improvement. This enhancement greatly enhanced the user experience and engagement by providing faster access to information and smoother navigation throughout the platform.