Anybody who works in Big Data already has, at the minimum, a basic understanding of the popular technologies in the field, including Apache Hadoop. Hadoop continues to gain traction world-wide and is becoming a technology all independent IT contractors working with data need to familiarize themselves with. According to insideBigData, in 2016, "Hadoop and associated technologies will grow by more than 100%, mainly driven by the demand for Big Data analytics." If that doesn't motivate you, the 2016 Stack Overflow Developer Survey shows that Hadoop is tied as the 3rd highest paying technology in the US!
If you'd like to start expanding your knowledge on Hadoop and whether it will fit into some of your projects, look no further than this post. The infographic below created by Kathleen Kowal for Udemy has everything you need.