Depends on the length of the contract.

Super short term contracts (measured in hours): $250/hr (though I might raise this after looking at this thread!)

Short term contracts: $200/hr

Longer term contracts: $175/hr

Retainer: $125 a month

I'm not a full-time contractor, though, so these rates are designed so that people and organizations that really need my help (and I generally have some previous relationship with) can get it if they really need it without wasting my time on unimportant projects.

I'm a generalist I design and build software and run teams that do the same (super descriptive, huh?)