All Federal jobs openings available to non-federal employees are posted here.
Submit your resume's online so you can apply for the jobs.
The pay can include a locality offset for high cost areas (e.g. in San Diego it's 21% extra over the salary listed).
Prior military time can count toward retirement. You usually have to buy your time into the pension system which can be split into payments (cost me $2500 for 8 years of military service).