Sr. Oracle Dba And System Administrator

July 23, 2026

México

Full-time

Computrabajo

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Job Description

The Sr. Oracle DBA & System Administrator is responsible for the design, implementation, administration and ongoing optimization of Oracle E-Business Suite R12 databases running on Oracle Exadata hardware. As a Sr. Oracle DBA & System Administrator, you will ensure availability, performance, backup/recovery and secure operations of the EBS database and related infrastructure; provide technical leadership; lead and develop automation efforts for database provisioning, patching, monitoring and deployment; and transfer knowledge to the broader team.\n\nWhat You Will Do:\nAdminister and support Oracle E-Business Suite R12 databases and related components on Oracle Exadata hardware\nInstall, configure, patch and upgrade Oracle databases, Grid Infrastructure, ASM and related components necessary for EBS R12\nImplement and maintain end-to-end monitoring using Oracle Enterprise Manager (OEM)\nDesign, document and operate robust backup and restore procedures (RMAN, Data Guard where applicable), and validate recovery procedures with regular restore tests\nCreate, document and execute cloning procedures for Dev/Test/QA/DR environments (Rapid Clone, AD utilities, RMAN-based clones)\nConcurrent Manager tuning, parallel execution settings, resource allocation and scheduling\nEBS environment\nPerform performance monitoring\nPerform root cause analysis and implement preventative measures\nCreate runbooks, standard operating procedures, train and mentor other DBAs and system administrators\nParticipate in an on-call rotation for after-hours support as required\nTravel to data centers or other company locations for deployments, DR testing or hardware upgrades as needed\nLead architecture and design reviews for new EBS/Exadata projects, upgrades or migrations\nCollaborate with Security and Compliance on audits (PCI, SOX)\nEvaluate new Exadata features Oracle releases and third-party tools\nDevelop and maintain capacity-planning models, cost analyses and lifecycle roadmaps for database infrastructure\nWhat You Need to Succeed:\nMinimum 10+ years hands-on experience as an Oracle DBA & System Administrator supporting Oracle E-Business Suite R12.\nProven experience with Oracle Exadata hardware (installation, configuration, tuning, patching and troubleshooting).\nStrong experience with Oracle Enterprise Manager (OEM) for monitoring and administration.\nSolid expertise with RMAN backups, recovery scenarios, disaster recovery concepts; experience with Data Guard is a plus.\nExperience designing and executing cloning procedures for EBS environments (Rapid Clone, AD utilities, RMAN, hot/cold clones).\nExperience configuring and tuning databases and application tiers for parallel concurrent processing and Concurrent Manager optimization.\nExperience implementing and supporting model routing in EBS and configuring additional application servers to support routing and workload distribution.\nStrong knowledge of ASM, Grid Infrastructure, Oracle RAC, Linux for Oracle, and storage/networking concepts as they relate to Exadata.\nProficiency in SQL, PL/SQL and shell scripting (bash); experience with automation/orchestration tools (Ansible, Puppet, Chef, etc.) and CI/CD is a plus.\nExcellent written and verbal communication skills; experience creating technical documentation and conducting knowledge transfer.\nOracle certifications (OCA/OCP/OCE) are preferred.\nMust be able to participate in an on-call rotation and travel to data centers or other sites as required.\nHands-on experience with automation/orchestration tools beyond basic scripting\nFamiliarity with cloud or hybrid Exadata-Cloud architectures (OCI, AWS RDS, Azure)\nProficiency in a general-purpose scripting language (Python, Perl) for complex automation tasks\nUnderstanding of database security standards and best practices (encryption-at-rest, key management)\nStrong collaboration and stakeholder-management skills\nOracle Exadata Database Machine Administrator or Oracle Cloud Infrastructure certifications (preferred)",