Delphi Construction, a Waltham and Mashpee-based construction management and general contracting firm, has made three senior-level promotions, according to a statement. 

Corey Heaslip and Tony Freitas have been promoted to project executive positions, where they will oversee project delivery teams across Delphi’s major markets, according to the statement. Tom Howes has been named director of business development.

"These promotions not only recognize their hard work and the value that each brings to our organization but they also further strengthen our ability to deliver outstanding service to our clients,” company Chief Operating Officer Keith Shaw said in the statement.

All three promotions were effective Jan. 1.

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