Salt of the EarthJacobs Engineering Group ( JEC), an engineering and construction firm with a $3.6 billion market cap, could be considered the ultimate global infrastructure play. This engineering group is well positioned to profit in a big way from the frenetic activity ahead. Because it is scheduled to announce earnings on Thursday in a market that puts the "v" in volatile, I am going to get a little more technical with my buy recommendation. I am also considering this a long-term investment, which is not the norm for me. That should tell all of you how much I believe in this experienced, savvy company, which offers exposure to infrastructure, energy, and globalization trends that should support the company's 15% annual growth target for many years to come. Now that the stock has come down a bit from its post-Katrina spike, here's the way to play it for those technically savvy buyers out there: Buy at the 50-day simple moving average at $61.70 or better. If the stock closes above its 50-day, its first target should be $64.70, where you take your profit. If Jacobs Engineering trades down for some reason, be patient and wait until it retests $58.70, the recent October low.