Meta Data Engineering Interview Questions: Top Topics, Problems & Solutions

Meta data engineering interviews (and similar big-tech loops) usually lean heavily on SQL —often PostgreSQL-style—and on Python for problems involving hash maps, counting, arrays, strings, and streaming or interval-style logic. Interviewers care that you can write correct queries, pick the right grain, and explain trade-offs—not just memorize syntax. This guide introduces the topics that show up most often in that kind of prep: aggregations, joins, windows, dates, null-safe reporting, set logic,