In the previous blog post, I’ve described how to build a simple SMS notification system using DynamoDB, SNS and AWS Lambda. In this post, I’ll show how to change it in order to allow each user to choose whenever he […]

As many engineers in the industry, we have on-call duty. The on-call duty is defined at the beginning of each month and the list of the on-call engineers for each date can be found in an excel sheet. Well, this […]