Charter Oak Federal Credit Union has promoted Sundae Franklin of Quaker Hill to senior vice president and chief retail officer overseeing the Waterford-based financial institution’s 16-branch network as well as its branch administration and training teams.

“Sundae has extensive banking experience, and her thorough knowledge of our retail branch operations will greatly help Charter Oak as we continue to broaden our banking services to our growing membership in eastern Connecticut,” said Brian A. Orenstein, Charter Oak’s president and chief executive officer.

Franklin has nearly 25 years of financial services experience. She joined Charter Oak in 2008 as the manager of Charter Oak’s Niantic branch.

Over the past five years, Charter Oak has opened four new branches within New London and Windham counties. “I’m confident that Sundae’s strong service and sales skills, combined with our strategic branch expansion, will further strengthen Charter Oak’s position as eastern Connecticut’s leading financial institution,” Orenstein said.