Abnormal Blog
De Sheng Chuan
De Sheng is a software engineer who joined Abnormal early 2021. He had previously worked in Credit Suisse as a development tooling and engineering experience engineer. In Abnormal, he spends his waking hours building up and scaling new products as a full stack engineer. Outside of work, he hikes and boulders for fun.
We recently shared a look at how the Abnormal engineering team overhauled our Unwanted Mail service architecture to accommodate our rapid growth. Today, we’re diving into how the team migrated traffic to the new architecture—with zero downtime.
As our customer base has expanded, so has the volume of emails our system processes. Here’s how we overcame scaling challenges with one service in particular.