How to pronounce “merchandiser” in English

And with our vendors we have an extranet. We work with about 1500 different brands and they can all log in to our extranet, our back end system, and view the exact same information,our own buyers and merchandisers can see. So they can see on hand inventory, what sales are, profitability, mark downs and so on. And when we first opened this up to them,their response was great. "Love all this extra information, but aren't you worried the information is gonna get in the hands of competitors?"