My back of the napkin put $50K @ 60 hours put at just above $13/hr base rate. Taking a look at Glassdoor, my guess would be several years of small raises would get you pretty close.
In any case, I don't believe that these companies will give overtime. In fact, your glassdoor link doesn't show any company paying over $30,000/year to their night workers, with the average being around $25,000.
That is correct. That is why I said it was the "base rate". The example was to illustrate what the employment opportunity would look like if an employer of a developer had to pay an hourly rate with overtime pay, instead of being able to pay them as an exempt salaried employee.
Assuming the position required 60 hour work weeks(as a non trivial amount of developer positions do) this is what the two would look like for exactly the same final pay.
With salary one can say: $50,000/year
With hourly one would say: $13/hr + overtime
While being the exact same pay, it looks quite a bit different. No?