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Carollo welcomes Principal Technologist Jon Harn

Headshot of Jon Harn, membrane treatment expert and Carollo's new Principal Technologist.We’re pleased to welcome Jon to Carollo’s Sarasota office. A native Floridian, Jon has 25 years of specialized membrane treatment expertise spanning reverse osmosis, nanofiltration, and ultrafiltration systems.

Jon’s hands-on approach supports the complete project lifecycle, from piloting and treatability studies through design, manufacturing, installation, commissioning, and ongoing operations support.

Having successfully delivered membrane solutions across Florida and the United States, he combines dedicated client service with a design perspective that prioritizes meeting operator needs, minimizing operational and maintenance costs, and maximizing system reliability.