Not sure of your salary expectations, but with those skills, you should be able to get a job with the Army/DoD... we do a lot of development in .NET and SQL; check USAJOBS. The hiring process is a pain (goes through a centralized bureaucracy to minimize manager influence), and you do need to be eligible for a clearance (REALLY not hard these days), but if you stick it out with your experience you should be able to find a ~GS 12/13 level ($100k) position. If you are looking for more than that, try Booze-Allen Hamilton, they contract top talent out to DoD that we can’t pay for a government/military employee.
I’ve actually got some FedGov experience, more than 7 years as a Federal Contractor for the CDC. Being as I have diabetes, that makes me a Title 2 hire (preferred). I’ve passed E-QIP twice and if I’m not mistaken, I held a Public Trust clearance (long expired, I’m certain.)