suckup
A complete ass-kissing brown-nose willing to do almost anything to benefit from his superior.
Those middle-management suckups are at it again trying to get my job by kissing the boss's ass!!!

She's such a suckup...her nose is brown!

She broke all the rules and didn't get in trouble from the boss--what a suckup!!

That suckup is such a teacher's pet doing extras for bonus points--oooooh i'm so impressed!