My mother was a revenue agent until she retired last year, and my sister was a lawyer with the IRS national office until she was headhunted away by PWC a while back, so this is second hand….
They both liked their time with the IRS. Little travel, steady hours, lots of job security once hired. However, this should come as no surprise, but hiring and training budgets were regularly cut over the last decade, which cut into their internal job advancement prospects the last few years..
Both had to have extensive background checks before being hired, and I believe again every so often, maybe in conjunction with the promotions. My sister was recruited out of law school…. and my mom started 30 odd years ago, so I really couldn't speculate about current job openings and hiring procedures other than to send you to https://www.usajobs.gov/ .
I know when my school took us all on a tour of places to work as an accountant, one of our stops was the IRS in Anchorage, AK, and they had a way to sign up for job announcements to be emailed to us, but I didn't sign up, sorry. But maybe you could reach out to your local office and ask a few questions? Of if you are not long out of school, or have a good alumni program, you could reach out to your school's career services and see if they have contacts with government hiring.
FAR: 55, 52, 66
REG: 84*
AUD: 54, 70, 73, 72, 79!!!
BEC: 75*
*expired