Hakeem Ambali

Experience

• 

  Red Stack Tech

  Sept 2012 - Nov 2016

  Oracle DBA Team Lead (Projects)

  Provide leadership and develop a high performing team with a commercial and delivery focused culture ensuring team members have clear objectives.Provide hands on database and application tuning, support and maintenance as well as troubleshooting critical service incidents.Installed, configured and administered Oracle Grid Infrastructure and Oracle databases (single, RAC and standby databases) on UNIX and Windows platforms, implemented high availability and disaster recovery solutions through Oracle Real Application Cluster (RAC) and Oracle Data Guard.Provide remote support, management and administration for Oracle databases (10g, 11g and 12c container/pluggable databases) supporting mission critical applications.Perform database upgrades, application of Critical Patch Updates (CPU) / Patch Set Updates (PSU) for reactive and proactive fixes to maintain security, ensure system availability and avoid unplanned downtime.Migrated Oracle Enterprise Manager (OEM) Cloud Control 12c (Management Server and its repository database running on different hosts) to new hosts.Troubleshoot database issues including diagnosing, tuning and optimization as well as provide root cause analysis to resolve critical issues quickly and efficiently to meet service level agreements (SLA).Developed a patching/upgrade strategy for applying database patches across production environments and promote best practices process.Provide support and maintenance for E-Business suite 11i/R12 environments including cloning and patching.Experienced and understanding of Oracle Cloud DBaaS applications implementation and infrastructure architecture.Migrated Oracle pluggable database and associated application to a DBaaS environment in Oracle Cloud.Work in a fast-paced environment with a diverse group of people.Work independently and take initiative with minimal supervision as well as participate as a team member helping out where needed. Show less

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  Cintra Software and Services

  Nov 2016 - Dec 2020

  Senior Oracle Database Administrator

  A key member of the Professional Services team working mainly on Project implementations involving installation/new builds, migrations, upgrades as well as supporting the Managed Services team.Highlights:Perform database upgrades, migrations (including cross-platform migration of Solaris to Linux) and patching including Oracle Database Appliance (ODA) upgrades.Provide remote and onsite installation of databases, Fusion Middleware products (WebLogic, SOA, Forms & Reports, BPM) support, management, administration and performance tuning of Oracle databases on Oracle Exadata, Oracle Database Appliance, OEL environments to support mission critical database applications.Successfully migrated on-premise Oracle E-Business Suite environments running on Solaris platform to Oracle Cloud Infrastructure (OCI) Linux platform (EBS database cross-platform migration, Transportable Tablespace). Provisioned Exadata Cloud Service, Oracle Database Cloud Service, Oracle Java Cloud Service and Autonomous Transaction Processing (ATP) database.Migrated on-premise Oracle database workloads to AWS and Oracle Cloud Infrastructure (OCI).Patched Oracle Database Appliance (ODA) from 12.1.2.9.0 to 18.7.0.0.0.Upgraded Oracle database 12.1.0.2/12.2.0.1 to 18c.Migrated and upgraded Oracle database 11g Standard Edition (11.2.0.4) to Oracle RAC 12c Enterprise Edition (12.2.0.1).Implemented RMAN encryption on Oracle Exadata RAC cluster primary and standby databases.Installed and configured disaster recovery environments utilizing Oracle Data Guard.Deployed and implemented Oracle Key Vault Multi-master cluster configuration. Show less

• 

  Data Intensity

  Dec 2020 - now

  Professional Services team lead ensuring delivery of well-architected solutions, standard builds and implementing best practices.Highlights:* Architected and implemented database solutions on multiple cloud platforms and on-premise on multiple projects ensuring highest quality of project delivery.* Created Standard Operating Procedure (SOP) documents to achieve efficiency, quality and ensure consistency.* Migrated multi-terabyte databases from on-premise to Autonomous Database Serverless (ADWS) using Zero Downtime migration solution and GoldenGate replication.* Deployed Oracle Exadata Database Service on Dedicated Infrastructure and migrated databases from on-premise to Exadata Cloud using Zero Downtime migration solution.* Oracle Exadata deployment, support, upgrades and extension (X9M-2/X8M/X7).* Deployed a few on-premise Oracle Exadata X9M-2 quarter rack and extended Exadata X8M from quarter rack to half rack (Elastic Configuration).* Migrated/Upgraded multi-terabyte Oracle databases 12c to 19c using Transportable Tablespace with minimal downtime.* Migrated a number of Oracle database workloads to multiple cloud platforms (OCI, Azure & AWS).* Installed and configured Oracle Grid Infrastructure/Oracle Restart and Oracle databases on multiple cloud platforms (OCI, Azure and AWS).* Oracle Database 9i,10g,11g,12c,18c upgrades to 19c.* Provide mentorship for junior and senior DBAs. Show less Highlights:* Migrated Oracle EBS R12.10 from on-premise to Azure Cloud.* Migrated/Upgraded multi-terabyte Oracle databases 12c to 19c using Transportable Tablespace with minimal downtime.* Migrated a number of Oracle database workloads to multiple cloud platforms (OCI, Azure & AWS).* Installed and configured Oracle Grid Infrastructure/Oracle Restart and Oracle databases on multiple cloud platforms (OCI, Azure and AWS).* Oracle Database 9i,10g,11g,12c,18c upgrades to 19c.* Performed regular patching and updating of Oracle Exadata (OCI and on-premise) and Oracle Database Appliance (ODA) to the respective latest software release.* Installed and Configured Oracle Enterprise Manager Cloud Control (EMCC) 13cR5 (OMS & Repository). Exadata Database Machine X9M-2 discovery and setup in EMCC. Show less

  • Senior Manager of Database Administration, Engineered Systems & Oracle Core Professional Services

    Jan 2022 - now

  • Professional Services Team Lead

    Dec 2020 - now