>If you ask the engineering manager this question and they throw certain folks under the bus then you should run.
I one declined an offer for this very reason. I had the option to join one of two teams, and each team's manager took the opportunity to crap on the other team.
There were other indicators as well. The office was in an old warehouse building on the waterfront of the city, with massive windows and high ceilings. I walked in to amazing water views from the lobby. When I descended one floor to the dev area, every single window was covered by a blackout curtain. It was a cave with no natural light, and barely any artificial light.
When I declined the offer, the recruiter was totally offended that I would pass up on such an opportunity.
I one declined an offer for this very reason. I had the option to join one of two teams, and each team's manager took the opportunity to crap on the other team.