Jonar Madriaga
Director of Special Inspections, PE
Jonar is the OSI Director of Special Inspections, and has
over 14 Years of experience in the construction industry.
Jonar studied at University of the East, Phillipines,
graduated in 2005 with a bachelors of science in mechanical
engineering, is a New York and Connecticut licensed
professional engineer, and ICC certified in several inspector
roles (residential/commercial, mechanical, residential/
commercial energy, fuel gas, structural welding, structural
steel/bolting, and structural masonry).
Included among the many projects Jonar has inspected
are ConEdison, School Construction Authority, Hudson
Yards, both low and high-rise residential/condominium and
commercial buildings.
In his role as Director of Special Inspections, his focus is
on vetting registered design professionals during special
inspections, approving special inspectors, monitoring onsite
activities in progress, supervising inspectors, construction
materials, and compliance with city and state codes.