Two Sigma has long been known as one of the chillest places to be in quant finance, but the past year has shed some doubt on this reputation. And yet, although a rift has appeared between the two founders, who seem to run the modelling and engineering separately, the fund’s chief innovation officer suggests things are a lot more cordial further down.Matt Greenwood, speaking on the Engineering Leadership Podcast, says staff on a certain seniority level at Two Sigma are, to an extent, “fungible and interchangeable.” He has “many people who write models that also write code,” and vice versa.