I applied through a recruiter. The process took 3 days. I interviewed at Atom Technologies (Mumbai) in Jun 2019
Interview
There are three rounds
1st round was apptitude plus quantitive
2nd round was technical , in which all questions about stiring and collections and stream
3rd round was technical in which they give a program to write - some hakersearth question
I applied through other source. The process took 1 day. I interviewed at Atom Technologies (New York, NY) in Jun 2018
Interview
Written Test which included questions on File Mgmt, Applets, Threading.
2 Technical rounds: First one would be Java. Second on SQL
Company hires very carefully. it will check if you are culturally fit in the last round. Be prepared for questions like where do you see yourself in 5 years.
Thoroughly research about company.
All the panelists were enthusiastic and quite encouraging.