My friend who was working with Nextbee referred me. They arranged an online interview over Skype followed by a written online test. The interviewer was very generous and had sound knowledge. He asked questions about software architecture, social APIs, REST API development and integration, and questions related to coding. The last question was a real word problem related to college and students and I had to suggest the solution to that problem. That was the most tricky part. My overall experience was very good.