Maryland assistant coach Grant Billmeier is set to leave the Terps for his first collegiate head coaching job at the New Jersey Institute of Technology, a source close to the Maryland program confirmed to The Diamondback Wednesday.

Billmeier spent 12 years on coach Kevin Willard’s staff — 11 seasons at Seton Hall and one season with the Terps — and is the second assistant coach of Willard’s inaugural Maryland staff to depart for a head coaching role after Tony Skinn left last week to become George Mason’s head coach.

Maryland already found Skinn’s replacement in former DeMatha head coach Mike Jones but will need to replace another assistant following Billmeier’s departure.

[Former DeMatha head coach Mike Jones to join Maryland men’s basketball as assistant coach]

The 38-year-old was known for his development of bigs like Angel Delgado and Sandro Mamukelashvili during his time with Seton Hall. He continued that with Maryland’s Julian Reese, who credited the coach for helping him develop over the past year.

Reese averaged 11.4 points and 7.2 rebounds per game last season as a starter for the Terps.

“[Billmeier and I] decide to get extra work before and after [practice] sometimes,” Reese said in March. “Shooting free throws, you know, doing basic things that some guys don’t like to do and just take care of fundamentals.”

Billmeier played at Seton Hall from 2003 to 2007 and returns to his native New Jersey as the Highlanders’ head coach.