Recruiter reach out to me and had discussion about company, products and founder. Recruiter setup a technical coding challenge interview with senior engineer. I was able to complete coding challenge quickly. Senior engineer asked another couple of question and he was not able to communicate clearly what he is asking. I reach out to recruiter for feedback after two weeks then recruiter schedule another technical interview with team lead. This time question is related to object oriented design. Interviewer type the question in hacker rank and went in silent mode. I hear keyboard press sound from other end. It seems his focus was not on me. I feel like one way communication. I was trying to clarify the question and Interviewer was not answering my clarification.

I was keep telling this is my approach. Does it sound good to you. Interviewer was silent. I have completed the question and explain my approach and told couple of different approach to implement as well. At the end, Interviewer ask. Do you have any question. I asked what would be your approach to implement. Interviewer was not able to answer. Interview is two way process. Interviewer should talk to candidate and clarify the question. Interviewers should know what you want from candidate and how you let them perform their best.

1st phone interview

1. LRU cache implementation. Followup question related to implementation.
2. API related question that is not clear to me.

2nd Phone interview

three input line for credit card transaction and implement method for transaction such as charge against available balance, add amount in credit card balance.

Interviewer didn't tell me what he is expecting. I tried to design model class and implement the method for transaction type.