Google’s Madison office has a bunch of openings for talented/experienced software engineers. Not all of them are listed on the careers page yet. If you have deep experience with network, storage, or database software feel free to reach out to me.
We also have a Verilog/ASIC design opening that is publicly posted. Several of the authors of this paper are in the Madison office, notably. https://drive.google.com/file/d/0Bx4hafXDDq2EMzRNcy1vSUxtcEk/view