Are you interested in working for the government? USA Jobs is a good start there but if the time frame for the job opening is less than a month, don't bother. Other government employees get first shot at jobs to transfer to, and if the agency can't find someone that route, then they will put out a solicitation with a longer open period.
You might check on LinkedIn for recruiters for companies such as CSC, Lockheed, Miter, etc. If you attended university check with your alumni association, there might be some fellow alumni here that can help open a door.