ALBANY - Alain Kaloyeros stepped down Tuesday as founding president of the SUNY Polytechnic Institute, less than three weeks after he was charged in a widespread bid-rigging scheme centered on some of the state's major economic-development projects.

Kaloyeros submitted his resignation Tuesday morning, though he remains a SUNY professor on unpaid leave, officials said.

SUNY Chancellor Nancy Zimpher's office declined comment Tuesday morning. His attorney could not immediately be reached for comment.

Perennially ranked as one of the state's highest-paid employees, Kaloyeros had become the face of some of Gov. Andrew Cuomo's major development pushes, including the Buffalo Billion, a plan to put up state cash for construction projects to boost the state's second-largest city.

Late last month, Kaloyeros was one of 10 people charged in sweeping federal and state corruption cases.

He was charged with one federal and three state charges -- all felonies -- and is accused of rigging bids for a $750 million manufacturing plant in Buffalo and a student-housing project in Albany, as first reported by Investigative Post.

Kaloyeros pleaded not guilty and has maintained his innocence. His resignation was first reported by the Daily News.

A tenured SUNY professor, Kaloyeros played a key role in the $600 million AIM Photonics project, a joint federal-state operation awarded to Rochester last year. The photonics institute was unrelated to the charges brought last month.

His total compensation package regularly topped $1 million annually when including both his SUNY Poly salary and extra pay from the SUNY Research Foundation.

He became the founding president of SUNY Poly in 2014, when the SUNY Institute of Technology and the College of Nanoscale Science and Engineering were combined to create the new institute.

Prior to that, he lead the nanoscience college, overseeing the creation of a multi-billion-dollar complex on the west side of Albany that houses some of the country's leading high-tech firms.