I've conducted over 100 technical interviews at Amazon. I ask myself 4 questions about every candidate.

Sai Chiligireddy said he looks for four values when interviewing technical candidates.

Sai Chiligireddy

• Sai Chiligireddy has worked for Amazon for about 8 years and has conducted over 100 interviews.
• Good candidates communicate ideas clearly and understand their role in the business, he said.
• Prep is essential since problem solving in 30-45 minutes can be stressful.

This as-told-to essay is based on a conversation with Sai Chiligireddy, an engineering manager at Amazon's Seattle office.