Moss has promoted Jeff Callahan to vice-president/project executive. Callahan, who has more than 17 years of experience in construction, first joined the company in 2005 as an assistant project manager.

In his new capacity, Callahan will oversee all phases of construction, including client development, preconstruction, budgeting, scheduling, staffing, construction operations and project close-outs.

“Jeff is an invaluable member of our team,” said Scott Moss, president of Moss. “His extensive experience in so many sectors of construction, including health care, education, mixed-use and residential, make him the ideal candidate for this position.”

Callahan studied construction management at Florida International University. He is an active member of Associated Builders and Contractors and the Construction Association of South Florida. Callahan resides in Miami.