The Broncos’ coaching staff continues to come together.

Denver head coach Sean Payton is adding former college assistant Brian Niedermeyer to the defensive side of the ball in a quality control-type role, sources confirmed to The Post on Wednesday afternoon.

Niedermeyer most recently had been named the head coach at Tuscaloosa County High School in Alabama, but has years of experience working as a high-level college assistant. The Broncos job will be the 36-year-old Niedermeyer’s first coaching stint in the NFL.

Niedermeyer spent time as a graduate assistant at both Alabama and Georgia before landing on staff at Tennessee in 2018. He coached tight ends there, then inside linebackers in 2021. He was fired as a wave of recruiting violations made their way through the school under then head coach Jeremy Pruitt, with the NCAA leveling allegations against Tennessee that implicated Niedermeyer as offering “impermissible recruiting inducements” to multiple student-athletes.

After receiving a five-year show-cause penalty from the NCAA, according to the Knoxville News Sentinel, Niedermeyer coached at Florida high school powers St. Thomas Aquinas and IMG Academy before taking a job at Tuscaloosa County High. Earlier Wednesday, Tuscaloosa County High announced that Niedermeyer had “made the decision to step down from his position in order to accept an opportunity at a higher level.”

The Tuscaloosa News first reported Niedermeyer was taking a job with the Broncos.

Payton has had extensive work to do on his coaching staff. He’s lost three coaches — special teams assistant Chris Banjo, passing game coordinator John Morton and tight ends coach Declan Doyle — to coordinator jobs with other teams.

“It’s part of the deal,” Payton said of the staff turnover last month at the NFL combine. “I’ve always said that you want to see your assistants do well. We tried to, if possible, promote from within and then in certain cases hire from outside if we have to. I’m happy for all of those guys, whether it is Declan, Johnny, Chris or (new New York Jets general manager and former Denver assistant general manager Darren Mougey).

“A lot of the time, it’s a byproduct from winning. I’m excited for their opportunities.”

The club saw senior personnel executive David Shaw join Morton in Detroit as the Lions’ passing game coordinator and is also working through a review process with outside linebackers coach Michael Wilhoite, who was charged with assaulting a police officer late last month after an incident at Denver International Airport.

Payton’s already formalized the hire of Darren Rizzi as his special teams coordinator and assistant head coach. Though he’s the lone coach to officially be announced as an addition to the staff, Payton indicated at the combine that he’s made headway in putting the rest of the group together.