If he were actually interested in a change in employer for great financial gain, something more like a $250-500k base with "uncapped bonus" might result in real

If he were actually interested in a change in employer for great financial gain, something more like a $250-500k base with "uncapped bonus" might result in real inquiries. Particularly if his experience included a decent amount of machine learning and big data, as I've noticed that quite a few Chicago and NY area finance firms -- especially those who have bowed out of the HFT arms race -- are currently willing to pay well for folks with those skills.