United Airlines Data Scientist interview experience

The interview content was squarely about data work and ML fundamentals, starting with SQL. I was asked SQL questions like how to find the second highest salary and how to use window functions, and the conversation also touched on a bit of pandas.

From there it shifted into core machine learning basics. I was pulled into topics like different evaluation metrics, bias and variance, and then into common models such as logistic regression. The discussion also went into neural networks at a conceptual level. Overall, it felt like the questions were meant to verify I understood the building