Sandy Darcy has joined ERA Key Realty Services Billerica’s office as a Realtor.

Darcy said she was initially attracted to ERA Key because of its office location, but it was the company’s mentoring program that helped her decide to join the firm.

“It’s a real advantage to be able to work with and learn from experienced professionals,” she said in a press release. 

Darcy, a Billerica resident, is also a senior associate at State Street Corp. Previously, she was a life-service representative at John Hancock and a billing and office administrator at Murphy & Riley PC.