Last month, our team published a blog post titled How we reduced the AWS costs of our streaming data pipeline by 67%, which went viral on HackerNews (Top 5). Clearly, developers are hungry to learn about new AWS cost-saving strategies. We’ve had a lot of questions about AWS cost optimization stemming from the original post. However, this question from Carl at Klarna inspired us to write another post. So without further delay, here’s how we approached the problem and made the switch.