I can write you a Hadoop MapReduce program in Java, giving you both the code and the fat Jar ready to be executed. Bring you exercise or problem that you want to solve within Hadoop, and I will help you! Or if you simply want a lesson about the Hadoop environment and job executions, I can teach you what does "run a mapreduce job" means. Thanks!
What the Seller needs to start the work
As only requirement, the problem has to be not so complicated, in order to be developed within an hour. Not every IT problem in the real world can be solved by MapReduce, if you are not familiar with MapReduce I'll help you!