What's the noun for admins? Here's the word you're looking for.
administration
(uncountable) The act of administering; government of public affairs; the service rendered, or duties assumed, in conducting affairs; the conducting of any office or employment; direction.
(countable) A body that administers; the executive part of government; the persons collectively who are entrusted with the execution of laws and the superintendence of public affairs; the chief magistrate and his cabinet or council; or the council, or ministry, alone, as in Great Britain.
(uncountable) The act of administering, or tendering something to another; dispensation.
“Some of the concerns raised were issues to do with the day-to-day administration of the charity.”
“The editorial criticizes the college's administration for not taking a stand on the issue.”
“The administration would decide to hold the sanctions effort in abeyance until the conclusion of the third round of bilateral talks.”
administrator
One who administers affairs; one who directs, manages, executes, or dispenses, whether in civil, judicial, political, or ecclesiastical affairs; a manager
(law) A person who manages or settles the estate of an intestate, or of a testator when there is no competent executor; one to whom the right of administration has been committed by competent authority
(computing) One who is responsible for software installation, management, information and maintenance of a computer or network
“Still, there is big money in Unix hardware and software and plenty of developers and admins to go around.”
“I believe I would get the most help in this sub-forum, however, if the admins feel this fits better in another sub-forum, feel free to move the topic.”
“A day after launching, the site was overrun with trolls and taken down by admins.”