The software and information of the projects involved with this client is confidential.
The ICQA Management project (also known as DACHS in Amazon EU) was built in order to support the Amazon EU ICQA department. This software is being used by all the Regional Count Meisters in Amazon EU in all the Fulfillment Centers, and it's current impact is huge. It made Amazon managers save time and speed up the processes that were done manually or with Excel to take 1/8th of the time, saving millions of dollars.
The project was heavily involved in Big Data, handling hundreds of millions of rows in multiple DBs, both SQL and NoSQL. It also exceeded expectations in terms of functionality and velocity of sprints. The project involved async programming and chron jobs as well, with multiple external services being consumed.