Melville, NY According to H2M architects + engineers, Jamie Mallette; John Hayes, LEED AP BD+C; Sarah Stoss; and Matthew Vitrano, E.I.T. have joined the firm.

• Mallette joins as senior proposal coordinator. Previously, Mallette was the prequalification manager at STV Inc..
• Hayes joined as staff engineer. Previously, Hayes was the intern at The Port Authority of NY and NJ.
• Stoss joined as communications specialist. Previously, Stoss was the Development and Communications Associate at Girls Inc. of LI, Deer Park, NY.
• Vitrano joins as project engineer. Previously, Vitrano was the HVAC senior designer at MG Engineering D.P.C.