Corporate Private Equity Roles

Does anybody have insight into what comp/progression/exit opportunities look like for corporate private equity gigs? 

For this, I mean roles specifically labeled "private equity analyst" or similar at large corporations like Siemens, IBM, GE, etc. Not to be confused with corporate development roles (which are amorphously different), I mean roles that sit within the financing/financial services side (GE Capital, IBM Global Financing, Siemens Financial Services, etc.)

I expect the hours would be substantially less than a traditional MM PE fund, but I'm also therefore expecting comp to be lower. But how much lower? What kind of work does someone in a corporate PE role actually do compared to the caliber of the work at a traditional PE fund? How is the work perceived, eg could I transition from an IBM private equity analyst role to recruit for roles at a respectable PE fund? 

Basically any insight is welcome.