"Instructor has a tremendous knowledge on the topic. The examples were very easy to understand. Course content was also very precise and is a great starter for all new comers in xml. Overall great learning experience."

JP Morgan Chase

"This was the best course I have eve taken. It had the perfect amount of instruction and labs. The labs were structured in a way to facilitate learning and were not too simplistic."

American Airlines

"John is very knowledgeable and was able to teach any topics that we asked about Spring."

American Airlines

"Great sense of humor combined with strong knowledge base of Hadoop for a great experience."

Broad Institute

"I find John's teaching method very effective. He communicated clearly with a sense of humor. He paused and sought feedback regularly."


"Knowledgeable and right on topic as well as sound in discussion. It really pointed out how much the state of wyoming needs to mature in order to call itself agile."

State of Wyoming

"Hadoop Course taught was excellent. Instructor was very helpful and kept guiding us. Labs were good."


"John could relate to the things we're trying to accomplish with hadoop. His experience seemed relevant to me."


"Great course! John is a superstar!"


"Beyond Excellent."

State of Wyoming

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