Markis Engineering is licensed to practice Structural Engineering in the states of New York, New Jersey and Connecticut.  Harriet Markis is certified by the Structural Engineering Certification Board and maintains an active membership in ASCE, ACI, CMAA and SEoNY.

Harriet Markis, former co-founding partner of Dunne & Markis Consulting Structural Engineers,  has nearly forty years of experience in projects of varying types and natures, involving not only new construction, but also the analysis of existing structures including restoration work on landmark buildings.

The variety of her work has required not only familiarity with the typical materials used in concrete, steel, masonry and wood construction, but also the more decorative historic materials such as cast iron and terra cotta. She has prepared feasibility studies as well as construction documents for various clients.

As a means of maintaining a professional posture and to contribute to the furtherance of her selected discipline, Harriet Markis is a Professor at Pratt Institute and at Parsons, The New School.