The longtime CFO of Lowell-based Enterprise Bank is retiring.

James A. Marcotte, executive vice president, CFO and treasurer of Enterprise will leave the bank Oct. 7, according to a regulatory filing yesterday. After his departure, he will continue to stay on part-time for a period as a senior adviser to ensure a smooth transition.

The bank’s board of directors appointed Joseph R. Lussier, the bank’s current director of finance, to replace Marcotte as executive vice president, CFO and treasurer of the company and the bank.

Marcotte has been CFO of the company since he joined the organization in 2003, and the board of directors and company said in the filing they are “deeply appreciative” of Marcotte for his years of dedicated service.

Lussier, 49, brings more than 25 years of experience in community banking and accounting to his new role. He joined the bank in 1999 and has been the director of finance since March 2017.

Prior to that position, Lussier was strategic initiatives director of the bank from December 2010 to March 2017 and chief investment officer of Enterprise Investment Advisors from August 2007 to November 2010. Before joining the bank, Lussier worked for six years at KPMG LLP.