Tax in CH is not so straightforward. You pay Community, Kanton and Federal taxes. The former two vary from community to community and canton to canton. It depends where you live at 31. December which community you are deemed to reside in for tax purposes.
One simple way to compare the taxes is the Comparis site:
http://www1.comparis.ch/steuern/steuervergleich/steuervergleich.aspx
You can also look on the various cantons websites, eg
http://www.zug.ch/behoerden/finanzdirektion/steuerverwaltung
You also need to clarify how you will be paid and if any tax will be deducted from your salary at source - Quellensteuer. If so, then it does not matter where you live, it is where you work that determines the amount of tax.
good luck
regards
Martin
PS (Disclaimer) I am not an expert in tax matters. The above is given in good faith; you should get specialist advice if tax is important to you. :=)