Need cryptocurrency exchange website

Hello there. We are a company working with Cryptocurrency forks, public blockchains and mobile/web apps for years. We have built the matching engine and other features already for our experimental app DTrax - which is a multi purpose crypto app. It’s available on the Google play. So we have already built an exchange and we would like to create one for you according to your specifications. We have experience setting up cold nodes, active withdrawal nodes and all the other security features an exchange requires. Also, our match engine is quite fast. Let me know how can we proceed. Thanks, Hardik