The author shares their experience of working at Amazon for 10 months, highlighting the company's unique operating model, which is decentralized and consists of smaller, independent teams. This model leads to inefficiencies, such as duplicated efforts and manual processes, including the use of Excel spreadsheets for critical business processes. The author also notes that the company's emphasis on data security leads to the development of in-house tools, which can be inferior to commercial counterparts. The author ultimately left the company due to the mismatch between their role and responsibilities.