If you really want to get a lucrative career you must probably do valuable certification which gives more career opportunity and also provide prestigious pay. Hadoop is the best option to get a good job and most of the companies are trying with Hadoop and its environment to solve their “Big Data” problems. Every company has their individual unique use cases for Hadoop.  So the requirement of Hadoop developer is still higher, if you want to become a great Hadoop developer start learning Hadoop ...