Allen & Shariff in Columbia, MD is seeking a Mechanical Engineer/Designer with 5-8 years of HVAC design experience. Exempt, salaried role with a salary range of $85K–$130K depending on experience and certifications. Responsibilities include full HVAC system design, equipment selection, coordination, code-compliant production in AutoCAD/Revit, and bid/construct support. Proficiency in Revit and a PE is a plus.