doing OA first and then wait for their contact, I am still preparing for the OA and the oa will last for 120 min, the oa has no deadline, they ask you to take it anytime , but better to finish it ASAP

There are 4 one-on-one interviews in a row, 30 minutes each. Ask about technical problems and technical project experience including Java, database, nosql databases and algorithms. The interviewers are generally friendly. I forgot some of the basics so I missed some questions.

1. Submit my application online 2. Wait for around 30 days. The recruiter asked me to attend the onsite interview. 3. 4 round interviews. 2 technical, 2 behavior questions. Really bad interview experience. The recruiter only gave me two-time slots to attend the interview. When I said can you schedule a later time, the recruiter threatened me to cancel my qualifications. I had to cancel another meeting with my professor which made the professor really unhappy. I nearly answered all the questions in the interview and interviewers seemed to be very satisfied with my answer. But the feedback recruiter sent me was bad. I clearly explained the technical details, but feedback said I did not explain. I have no idea why the feedback was written like that. Anyway, I went to a much better company than TeleTracking. Thank you reject me. BTW, the salary of TeleTracking is really low compared with other companies. And the technology stack is not excited. Think twice before joining this company.