Large companies are collecting big data every minute. The need for new data base analyst and system programmers is increasing having specialised skills and in depth knowledge. Their roles include 1) management of databases and their recovery readily measured and monitored against disaster. 2) Implementation of self-realising and self-tuning processes. 3)SQL and database performance tuning. 4) Database logs and error management. Many of these roles are unnecessary due to high speed of big data analyst solution. Similarly, database performance tuning has become redundant as it lacks internal performance tuning resulting of no need of specialist in new enterprise environment. The task of specialist involves, 1) System and network performance tuning along with software installation and migration. 2) They be the leading technical specialist for critical application assisting data architecture changes. 3) Set the performance benchmark for prospective vendor tools. This infers that less and less specialist will be required in the coming phases when the role of generalist can be easily done by supplementary staff. Read more at:  http://it.toolbox.com/blogs/database-administration/big-data-technologists-transition-to-customerfacing-roles-the-current-team-70675