Streaming through millions of records trying to match an encrypted field : Java
A year ago I was working on a really tiny part of a large non-consumer facing product (idk what's the correct term). I can't divulge much, I have done a lot of illegal things like calling a politician an idiot on social media, so I don't want to add more to the list. Imagine you ran an ice cream subscription service, and you had a lot of people on the payroll tasked with managing renewals for subscribers. Let's call them agents. You had an online portal for customers to manage/renew their subsc