Sr. Oracle Database Administrator (Full Time) - Hybrid

PROSPERITY BANK-posted 1 day ago
Full-time • Mid Level
Hybrid • El Campo, TX
1,001-5,000 employees
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The Senior Oracle Database Administrator will architect, secure, manage, and optimize the Oracle Exadata environment—both on-premises and in the cloud. The Senior Oracle Exadata Database Administrator will be responsible for ensuring the highest levels of availability, performance, and security for the mission-critical databases, and for implementing robust security controls and compliance standards across the Exadata and OCI deployments.

  • Administer, secure, and maintain Oracle Exadata systems—covering storage cells, compute nodes, and InfiniBand networks—across on-premises and OCI environments.
  • Design and implement advanced security measures for Exadata and Oracle Cloud database environments, including encryption, access controls, auditing, and vulnerability management.
  • Perform end-to-end installation, configuration, patching, and upgrades of Exadata software, firmware, and OCI resources while ensuring minimal downtime and maximum security.
  • Continuously monitor system performance, proactively identify and resolve issues, and tune databases for optimal operation and security posture.
  • Develop, test, and manage comprehensive backup and recovery strategies using RMAN, Oracle Data Guard, and OCI-native tools, ensuring business continuity and disaster recovery readiness.
  • Collaborate with application, infrastructure, and security teams to support and secure database-related needs, including role-based access and compliance initiatives.
  • Automate routine administration and security tasks using scripting languages (Shell, Python, etc.) to improve operational efficiency and reduce risk.
  • Participate in capacity planning and disaster recovery exercises, with a focus on secure architecture and compliance with industry standards.
  • Provide 24x7 production support as required, including on-call rotation and incident response for both performance and security events.
  • 5+ years of experience in Oracle Database Administration with a proven track record of managing and securing Exadata systems.
  • 3+ years of hands-on experience with Oracle Exadata, including administration, security, and performance tuning.
  • Extensive experience with Oracle RAC, ASM, Data Guard, Grid Infrastructure, and Exadata patching.
  • Strong knowledge of Oracle Enterprise Manager (OEM), AWR, ADDM, and security auditing tools.
  • Proficiency in Linux/Unix system administration and scripting for automation and security hardening.
  • Demonstrated experience in securing database environments, implementing encryption, and managing database compliance and auditing.
  • Solid background in deploying and managing Exadata solutions in Oracle Cloud Infrastructure (OCI), including security best practices in cloud environments.
  • Excellent problem-solving, communication, and collaboration skills.
  • Bachelor’s degree in Computer Science, Information Technology, or a related field.
  • Background in Oracle Cloud Infrastructure (OCI) and advanced security practices preferred.
  • Must be able to be on a on-call rotation and occasional weekend work for maintenance, upgrades, and incident responses.
  • Oracle Certified Professional (OCP), Oracle Exadata, or Oracle Cloud Infrastructure certifications preferred.
  • Experience with Exadata Cloud@Customer and advanced OCI security features (such as Identity and Access Management, network security, and cloud-native monitoring).
  • Familiarity with ITIL processes, change management, and security frameworks (e.g., ISO, NIST).
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