Here's a page that gives the range for each rank [1] to give an idea what they can make before they leave and start contracting. Click on a particular rank and you'll get a page with a slider for years to see how pay progresses within that range over time.

A general makes the most, $221 900 per year.

That site also has pay for non-military jobs. Lots of interesting stuff there.

For example here's their page for computer science [2]. Average government computer scientists makes $142k. There's a graph showing the distribution and it is very uneven--looks like you can make pretty good pay or pretty terrible pay. 5 times as many computer scientists at the FAA (250) than at the IRS (53). 180 at the FBI. Nearly 1500 computer scientists total.

Some surprised me. The government has a little over 1000 archeologists [3]. I guess that explains where all those other thing came from in the warehouse they stored the Ark in!

[1] https://www.federalpay.org/military/air-force/ranks

[2] https://www.federalpay.org/employees/occupations/computer-sc...

[3] https://www.federalpay.org/employees/occupations/archeology