I suggest he start with creating his profile at odesk.com and freelancer.com . Initially, he needs to apply for smaller projects and at significantly lower pric

I suggest he start with creating his profile at odesk.com and freelancer.com . Initially, he needs to apply for smaller projects and at significantly lower prices than the other bidders. He can build a good portfolio and start moving to bigger and paying clients. He could start with web development initially. It's the fastest way to get going. Then move to other subjects like algorithms, machine learning, Big data. Ask him to build some stuff which can solve some real world problems that he faces in every day life. If other people also face such problems, they will pay to use his tools. Good Luck