Building a communication platform means processing a TON of data. Our backend, built primarily in Node.js and Golang, processes up to 250M events a day with 200k/minute at peak load. As the glue for an organization’s communication, not only are we processing a huge number of internal events, but we’re also processing data from external sources like CRMs and ATSs totaling 3.2 million events and amounting to a data volume exceeding 14 GB each hour. We've already scaled our platform up 2x in the past 3 months and plan to grow another 10x this year, all while maintaining strict "three 9's" uptime that our customers expect, as they rely on Mixmax all day to get their work done.