Dustin C. Sarnoski has been named the new chair of the board of trustees for St. Mary’s Center for Women and Children on Dorchester’s Jones Hill. The multi-service, nonprofit organization works collaboratively with hundreds of families experiencing homelessness and poverty.

Sarnoski is the head of Global Realty at State Street Corp. and president of SSB Realty, LLC. He joined State Street in 2007 and is responsible for the organization’s 6 million-square-foot operational real estate portfolio, consisting of office space and data centers. Sarnoski’s real estate team operates in 25 countries and consists of approximately 70 direct staff and more than 3,000 contractors worldwide.

“Dustin brings firm leadership to our board of trustees, and the commitment and compassion he has shown for St. Mary’s Center’s families in his 18 months as a board member is remarkable,” said Alexis Steel, the center’s president. “As we embark on a transformative new chapter, Dustin’s proven expertise in real estate and law, as well as his passion for social justice for families, will be critical in guiding us toward the future of the agency.”

For his part, Sarnoski called the center’s mission “deeply meaningful to me, and to be selected to serve as the board chair is an incredible honor. It is an exciting time to be leading the board,” he said.”

Sarnoski, a Melrose resident, received a Bachelor of Arts degree in Chemistry from Amherst College and a JD with a concentration in Environmental Law from Vermont Law School.