Data Science jobs

Data science at AI companies has sharpened back into inference and judgment: designing experiments, modeling user behavior, and telling executives which number is lying to them. The generative wave added questions classic product analytics never faced — measuring model quality from usage logs, valuing training data, pricing tokens.

Python, SQL, and a statistics spine are the constants; causal inference and experiment design are what screens actually test. The title still varies wildly between companies, so check whether the role ships models or ships decisions. Both are real jobs, and they interview very differently.