Melisandre app is a window manager app to control other app's window using shortcut. You can find a window, move, resize it using shortcuts defined by yourself... Melisandre has time-unlimited Free Trial and allow Pro features, you can try it now.
This is a fairly saturated market already but this seems like it distinguishes itself by giving you keyboard shortcuts to manipulate the windows on a pixel by pixel basis. What is the use case for this?
GrowSurf
Melisandre