You have not explained where the error occurs, but I assume it is on this line:
title=jobs_c1.find("h2", class_="href").get_text(strip=True)
The error message tells you that the call to
find
did not return any data, so there is no text to be got. You should always check the response/return codes for method calls, before trying to use what you think may be returned. Do not just assume that such calls always succeed.