Costar Group·Software Engineer

Costar Group Software Engineer interview experience

Got offer

Easy

Negative

Sunnyvale, CAPosted Jan 2026 · Candidate report, summarized by Dataford

This one started with a pretty positive technical and team-fit experience, and I ended up getting an offer that I accepted.

The technical evaluation was described to me as very simple, and I was told I passed with flying colors. The fit interviews focused on me as a person—good questions that pushed for anecdotes and how I handled resolving tensions or conflicts.

Even after accepting, though, the timeline turned bumpy. There was difficulty getting the documents updated for things like start date and relocation dates, and I noticed other delays too. Then, the Friday before I was supposed to start, they called to push my start date out by a week so their background check could be completed, which required a new

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