 and cultural fit.
To me, this immediately reeks age discrimination. Maybe not others but something to think about. If it's not age discrimination, it certainly would then lead me to think race/creed. Which I do not think is the case, because there's certainly no concerns there with outsourcing in general. But age, yes, as younger employees are more susceptible to social pressures in working over the 8-hour workday.
Ask HN: Who is hiring? (June 2016)