I went through the interview process for a Senior Big Data Engineer role. I received a call from a recruiter and arranged interviews after getting a lot of publicity about JPC from them. There were the following rounds:

1. Two technical interviews: one on a phone call, another on a BlueJeans video call.
2. One coding assessment to complete and review by a technical manager.
3. A managerial round with an Executive Director.
4. An HR round.

The recruiter called me after each round to ask how I performed, in a friendly and non-professional way of talking.

After the completion of all interview rounds, the HR round came, and the same recruiter conducted my HR round. The offered salary was very low, just enough to survive in Glasgow. I was disappointed because after taking so many rounds and getting selected, they came up with a low salary and some basic benefits which I think nobody would accept, as this is not the only company in this world to get hired. I also had to bear the relocation cost for myself and my family, as the company does not provide relocation for foreign employees.

At the end, I rejected the offer because I experienced that this company does not think about its employees and just wants to hire people with many skills but at a low salary.

Big Data/Hadoop related questions, e.g., RDBMS vs. Impala, performance tuning, Spark and MapReduce.

Real-time project experience and testing of your problem-solving skills based on some given use cases.

Scala functional programming.

System architecture, microservices design techniques, how you test your applications, and the software development life cycle you follow.

Coding assignment related to string manipulation and handling strings with camel case.