A data analytics company stores event data in its on-premises PostgreSQL database. With the increase in the number of clients, the company is spending a lot of resources managing and maintaining the infrastructure while performance seems to be dwindling. The company has established connectivity between its on-premises systems and AWS Cloud already and wants a hybrid solution that can automatically buffer and transform event data in a scalable way and create visualizations to track and monitor events in real time. The transformed event data would be in semi-structured JSON format and have dynamic schemas. Which combination of services/technologies will you suggest to implement the requirements?