Korb will become the director of facilities management at Delta State University in May.
"It's a tough decision for me to make but you should have before you a letter of resignation … effective at the end of the month," said Korb.
"The position came open that allowed me for a different career path. I'll be the director of facilities at Delta State. I think it's the right way for me and my family to go. As much as I've poured my heart and soul into that department over there I'd hate to see anything happen to it.
"It was a very tough decision to make but I'll be here in town and if anything arises I'll be here," he said.
Alderman Kirkham Povall said Korb would be missed.
"I think he's done an excellent job working with the city. He's been associated for many years and this appears to be an excellent opportunity to, as he said, to make progression in his career. We wish him the best and know he's going to an excellent job in new his position," said Povall.
Alderman Danny Abraham said, "He's been with city of Cleveland since I've been on the board and we're certainly sad to hear of the change but we wish him well in his new endeavor."
Korb will work with the city on current projects and grants and the board will begin discussing what to do in regards to finding a new city engineer.
"Greg has been a valuable asset to the city and we're certainly going to hate to see him go. At this juncture we're going to have to really evaluate the whole engineering situation from a cost versus benefits standpoint," said Alderman Gary Gainespoletti.