Signode interview questions

Applied online, soon after few days the company contacted me for a Technical interview with 2 support engineer. After a week I received an invitation to meet the Hiring manager and the director of HR. After the last stage they reached me back after more then one month with a rejection letter.

I was asked questions about basic java concepts and then told me to explain my project. The interview for about 20 min and for whole 20 min they spoke about my project and java.