MWRoesener says,

Very good communication. Top of class work!

for Optimize R code into C++ on Dec 13, 2011

Rob_Witcher says,

Jeff did a fantastic job on my project. He has great communication skills, demonstrated by his ability to clearly explain technical aspects of the project in laymen's terms. He made sure he clearly understood my needs and was receptive to feedback. He set a realistic timeline for completion and provided timely updates along the way. I am very pleased with the results and would happily work with him again. Thanks Jeff!

for Visio Relationship Map / Org Chart on Sep 21, 2011