Not glamorous I know, but these would be decent paying jobs, including few management positions, that would tap into North American corporate dollars, bringing a lot of wealth into Nicaragua over time.
Symantec, a security software company, is adding 1000 jobs in the next 4 years to its Springfield, OR office. 95% of them are call center jobs, a few are sales, but most are varying levels of tech/tool support jobs, paying at least $7.25 per hour (Oregon's minimum). That's $7000 an hour -- what if even a portion of that money were being poured into Nicaraguan checking accounts.
Nicaragua's advantage over India is that it's closer time zone-wise to the US and Canada. I also believe that Nicaraguan's friendly personalities and Spanish speaking ability would be a plus. Vis-a-vis Mexico-based call centers, the very inexpensive cost of living would be a plus. In other words, you would theoretically underbid Mexican companies by paying your employees less, and paying less in rent and other services.
Investment-wise you'd need to rent a building, buy telecommunications services and equipment (this could get pricey), hire and train a workforce, hire legal and accounting services in the US and Nicaragua, and make frequent trips between the two places, initially at least. The investor, or the partnership of investors, would need to be bilingual, tech-savvy, Nicaragua-savvy, and, most importantly, be able to close a good deal with a company like Symantec.
I'm thinking it would have to be in a place with a large number of educated Nicaraguans -- Leon or Esteli would be nice, but it seems like Managua would be best, especially since a rock-solid telecommunications service would be a must.
Does a bilingual workforce with basic computer knowledge even exist in Nicaragua?
This may already exist in Nicaragua...I googled a bit and found something El Salvador: http://www.teleperformanceusa.com/offshore/elsalvador.html
Also found a kind of corporate services firm in Managua that might serve as a good consultant for this kind of project: http://www.offshorexperts.com/index.cfm/fa/buyer.profile/s/200/p/142894