Three easy steps. They call you for hiring manager interview. Then technical and last one with Director. The hiring process takes at least 4 weeks. The technical might have two rounds as they have cognitive and technology seperate.
I applied online. I interviewed at Atena (Charlotte, NC)
Interview
Simple and easy. They only want to learn more about you as a candidate and answer every questions you may have. I had a very smooth experience. I really enjoyed their interview process.
I applied online. The process took 4 weeks. I interviewed at Atena (Sopot) in Feb 2016
Interview
I was invited to the interview by an HR girl. I met with 3 person (Team Leader and other developers) form my interview. Overall it was quite easy, not many difficult questions there. If you are a good expert than it should go smoothly.
Interview questions [1]
Question 1
Tell about your most challenging project and why you decided to use this technology?