India, Oct. 14 -- An American CEO who said he has interviewed 30,000 candidates has opened up about what makes an employee happy. He listed six aspects he said the most successful employees have in common.

William Vanderbloemen, a founder and CEO, expressed his thoughts in a conversation with CNBC.

The CEO listed that the first thing almost every employee wants is a good manager or boss. "A good boss knows you and your particular wiring, like whether you prefer to receive praise in public or privately in an email."

In the following lines, he discussed work-life balance, adding that this aspect is different for different people. Vanderbloemen said that while some prefer checking their emails after office hours, others do not.

"Neither ...