Principal Database Administrator

Nationstar Mortgage   •  

Irving, TX

Industry: Financial Services


8 - 10 years

Posted 394 days ago

Job Description

The Principal Database Administrator (Oracle) is responsible for the support, monitoring, performance, and documentation of all Netezza and Oracle databases used within Mr. Cooper. The Sr. DBA will work with multi team projects and collaborate with the Database Team. General understanding of underlying operating system, storage technologies, memory management, disk arrays, NAS/SAN, networking is needed to perform the job functions.

Support primarily Oracle RAC and standalone environments which includes Linux and windows platform. Netezza appliance environment that will include configuration, administration and maintenance of business-critical 24x7 non-production and production environments. Responsible for managing and supporting high performance, highly available and mission critical database platforms along with DR platforms.


  • Perform database performance analysis, capacity planning, system sizing and ongoing maintenance/tuning to ensure maximum performance on Netezza and Oracle systems.
  • Use the NzAdmin/NZMigrate tool for typical administrative tasks which include genstats, groom.
  • Assist development teams with planning and implementing database changes and query optimization.
  • Recommend and implement a detailed security design based on minimum necessary privileges required.
  • Create, test, implement and monitor an automated set of procedures for database and server backups as well as necessary maintenance procedures including performing backup and restore activities.
  • Work closely with IBM and Oracle support to manage hardware/software failures, appliance upgrades and install patches.
  • Implement and configure Oracle RAC and standalone environments.
  • Review and Patch of Netezza and Oracle environments including DB2 , OS and Server firmware.
  • Supporting QA and DEV environments with refresh tasks.
  • Weekend support as needed. Must be flexible to meet current and future business needs.


  • At least a minimum of 7-10 years of experience in Oracle and Netezza appliance administration
  • Bachelor's degree, preferably in Computer Science/Technology or Engineering, or equivalent relevant work experience
  • Extensive experience with different backup/restore and disaster recovery solutions.
  • Expert level experience in administering large databases in mission critical environment.
  • Develop and define administrative and operational standard practices using Netezza utilities (Groom, Distribution, statistics, Zone Maps).
  • Solid experience in Netezza system configuration and setup with its utilities and tool sets.
  • Strong knowledge of Installation, configuring and maintaining of Oracle GRID infrastructure and applying of oracle Quarterly patches.
  • Strong knowledge and experience with computer hardware including Servers, Network, SAN technologies, I/O subsystems.
  • SQL Server knowledge is a plus.
  • Strong communication, organizational, and time-management skills.
  • Positive attitude, problem solving skills and self-initiative are must qualities.