Program Leadership


Janim Sayles »

Executive Director, Horizons Greater Boston

Janim Sayles serves as regional Executive Director of Horizons Greater Boston, bringing a deep commitment to educational equity and a strong connection to the organization’s mission. With deep roots in Greater Boston's education landscape, she has dedicated her career to expanding access and opportunity for students and families from marginalized backgrounds, helping to connect them with meaningful resources and transformative opportunities. A Spanish speaker and first-generation college graduate, this work is deeply personal and central to her leadership.

Janim’s relationship with Horizons Greater Boston spans several years. As a member of the Board of Directors and former Chair of the Program Committee, she has been actively engaged in advancing key organizational priorities, positioning her to build on Horizons’ strong foundation and guide the region into its next chapter.


Kerry Pottinger »

Executive Director, Horizons at Mattahunt Elementary School

Bringing a wealth of experience in community engagement, Kerry has played an instrumental role in expanding access to quality summer programming for children from diverse backgrounds.


Maricarmen Sullivan »

Executive Director, Horizons at Lexington Montessori School

For the past 14 years, Maricarmen has been an integral part of the Lexington-Montessori (LMS) community, wearing various hats throughout her tenure.


Jessica Cohen »

Executive Director, Horizons at Dedham Country Day School

Jessica is passionate about supporting children and families, and brings more than 20 years of nonprofit experience in both programmatic and development leadership roles.