First half was talking about your experience and qualifications (going through resume), second half was technical questions about C++ loops, SQL, and databases. Second interview would be fully technical, speaking with a senior tech engineer.

The first 15 minute screening is just to inform you about how they usually relocate you to whereever they need. Afterwords, they have a behavioral interview that is about 30 minutes talking about the company and reiterating the relocation. They also asked basic OOP and SQL questions, nothing incredibly technical.