How would the devs be paid (in shares) or in fiat money, or in btc ?
Where would the exchange be located ? Would the devs need to move there, or could you work remotely.
Malta may be just a great place for such a business, with all the beneficial taxation rules and easy access to mainland Europe, it is also a member of the EU and party of the Schengen Agreement. Air tickets to most european countries are cheap, and it's also close to northern africa.
Or are you located in the states perhaps ?
To run a great exchange, you would need a team of developers, sysadmins and security experts. Some of their skills might be overlapping.
The most important thing is not to find those with the most experience, but those who are thrustworthy and work with great attention to detail and do things properly, and which can be trusted.
Also, there should be at least one finance dude, one lawyer dude, and perhaps one PR dude.
+ competent customer service.
Communication with customers should be great, and responsiveness and scalability of systems should also be good.
With great funding, one could kick of a very solid exchange in a relatively short time frame, one could also outsource components of the development job to external parties, and then audit it in house before deployment. There should also be a security audit of at least two different independent professional contractors.
Also ddos protection would have to be arranged, and there would be a need for several datacenters around the world, and the matching engine should be disconnected from the web frontend, and perhaps there even could be some way of having users directed to different web-servers based on their location or profile, so that the main systems really never got congested, as if one web-frontend got swamped, the other front ends held up well. Web front ends could also be relatively dynamic, perhaps even with captchas or some sort of verification system ensuring that users are humans. And the db backend and processing engine should be on a network not directly accesible on the net, with good protection, and in the event the network connection of theirs got congested, it should be possible to route the traffic some other way.
*puh* That started to be seriously a lot of work, but I guess that's the way it's got to be if you run an exchange, or you could just start small, and build from there as problems arise. There would also really be a need for a diplomatic person (preferrably a very nice looking girl, that could dwindle bank executives around her little finger, so we could have a good relationship with the banks). I am really not kidding here. Nice looking girls really get more goodwill from many people, esp. from middle aged men.. But people are politically correct and don't admit to this. A good looking lawyer woman that knows her stuff of course.
And all this would not be cheap!