Can you tell about the main area of activity of the last organization you worked for?

In my last organization, I worked at a company engaged in developing web services for e-commerce. The main activities included creating and maintaining high-load APIs in Go that facilitate interaction between client applications and databases.

My responsibilities included developing new functional modules, optimizing service performance, writing unit tests, and participating in microservices architecture design. I also handled integration with external payment systems and ensured data security.