Database Administrators (DBA) are vital engineers at any company with data infrastructure. The role of DBA has actually become more complex over the years. In the past, data may have been adequately managed on a single server. But the big data infrastructure of today is often comprised of a medley of intricate, interconnected data platforms, potentially involving large clusters of massively parallel processing servers. Demand for this type of DBA talent is very high below are listings for DBA jobs.