New Delhi, Nov. 21 -- Amazon had in October announced that it will lay off 14,000 corporate employees. The Amazon layoffs, its largest in three years, have affected every part of the company's businesses - rom cloud computing and devices to advertising, retail and grocery stores.

However, one job category saw the most impact - engineers.

According to a report by CNBC citing documents filed in New York, California, New Jersey and Washington, about 40% of the nearly 4,700 job cuts in these places were engineering roles.

Amazon, which joined several other big tech companies in announcing major layoffs, reported the data in Worker Adjustment and Retraining Notification, or WARN, filings to state agencies.

The filings, which represent a se...