Derek Jay Winkler
Derek Jay Winkler's Illinois Structural Engineer stamp
Watermarked specimen
This downloadable Illinois Structural Engineer stamp specimen was generated for Derek Jay Winkler from the public license details in this directory listing, including license number 081009059. The preview is watermarked and does not prove that Derek Jay Winkler approved or sealed a document.
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Derek Jay Winkler is a licensed Structural Engineer in Illinois. The credential is registered under license number 081009059 and is currently active. It has been on record since 2024. Licensure is issued and verifiable through the Illinois Department of Financial and Professional Regulation - Design Professionals.