Executive Board Members

January 2020 – December 2022

Ernst Fleuranvil, P.E. – President


Ernt is a civil engineer with over 20 years of experience in construction engineering, design and transportation. He is the founder and president of Excelsior Engineering Services P.C., a consulting firm specializing in planning, design resident engineering inspection and construction management of infrastructure, and building projects. Ernst was involved in the management of the $1 billion-dollar global gateway timeline project at Newark Airport.

Garry Ambroise, P.E. – Vice President


Garry is the founder and president of GACO Engineering, P.C. Prior to Garry’s last position of Director of Queens Program Administration at the NYCDDC managing a portfolio of approximately $800 million of capital funded construction projects, he held the positions of Engineer-in-Charge and Resident Engineer of DDC Construction.

Valerie A. Raymond, P.E. – Secretary


Valerie A.Raymond is a licensed Professional Engineer, in the States of Florida, New York, NewJersey, Connecticut, and Pennsylvania, having earned a B.S. in Civil Engineering from theUniversity of New Hampshire, received a certification in Geotechnical EarthquakeEngineeringand an M.S. in Civil Engineering from Missouri University of Science and Technology. She has over 15 years of experience as a geotechnical/construction management engineering in the US and in Haiti. She is the founder and president of VAR Engineering PLLC, a consulting firm offering various services including  Geotechnical studies as well as Construction MaterialTesting, Construction Management and Surveying

Claudel Seide, PMP – Treasurer


Claudel is an Electrical Engineer with over 25 years of experience in engineering, planning, project and program management. He is the CEO of Global ReachConsulting Group, providing consulting services in project management, strategic planning and professional services. Prior to that, he served in leadership positions at Verizon Communications, Globix Corporation, NEONCommunications Group, Quality Technology Services, and Sungard Availability Services. He led the Career Development Program for PMI, New York City Chapter, from 2010 to 2017.

Herve Mathelier – Project Planning Chairperson


Here is a Director of In-house and Consultant Infrastructure Design Services for the NYC Department of Design and Construction. He has over 25 years of experience as a design and construction highway engineer. He is proficient and very pro-active in implementing green infrastructure techniques.

David Jonathas – Membership Chairperson


David Jonathas has many years of experience in pavement markings maintenance, street improvement and intersections treatment projects to reduce crash fatalities in New York City streets. He is currently working on stormwater right-of-way management projects (bioswales, infiltration basins, rain gardens, green streets, and strips) for the city of New York. David has a BS in Agricultural Engineering from the University of Haiti and an MS in Environmental Engineering from the University of Arizona.