Seasoned Oracle and Microsoft SQL Server Database Administrator with a proven track record in retail and supply chain environments. Adept in database migration, systems administration, and performance optimization. Excelled in enhancing database efficiency, security, and reliability, demonstrating strong problem-solving skills and effective teamwork. Proven ability to ensure high availability, minimal downtime, and continuous improvement in database performance.
Overview
16
16
years of professional experience
1
1
Certificate
Work History
Database Administrator Advance
State of Tennessee
04.2023 - Current
Database Migration & Administration
Delivered successful database migration projects, ensuring seamless transitions with minimal disruption to business operations.
Administer and supporting Microsoft SQL Server Oracle, MySQL database systems.
Managed cloud-based databases (AWS), ensuring scalability, performance, and high availability.
Led the deployment, configuration and maintenance of cloud databases, optimizing for cost and efficiency.
Performed proactive monitoring and maintenance to ensure database health, minimizing downtime and reducing operational costs.
Security & Access Management
Set up and controlled user access levels across databases, ensuring data protection and compliance.
Implemented robust security measures to protect critical business data and ensure system integrity.
Managed user profiles and access rights to safeguard sensitive data.
Optimization & Troubleshooting
Streamlined backup and recovery processes, improving system stability and availability.
Reduced data retrieval times and optimized performance through indexing and stored procedure optimization.
Provided timely resolution of production issues, minimizing downtime and mitigating revenue loss.
Standardized database object naming conventions, simplifying management and troubleshooting.
Collaboration & Documentation
Collaborated with cross-functional teams to design custom applications and meet business objectives.
Developed comprehensive documentation for database architecture, simplifying future upgrades and maintenance.
Worked with stakeholders to determine optimal database specifications based on business requirements.
Disaster Recovery & High Availability
Ensured high availability by implementing disaster recovery strategies and failover systems.
Regularly tested and updated backup strategies, ensuring minimal downtime during failures.
Administered database management systems to ensure optimal performance and reliability.
Implemented backup and recovery plans to safeguard data integrity and availability.
Developed and maintained documentation for database configurations and processes.
Monitored system performance, identifying areas for improvement and optimization.
Collaborated with cross functional teams to support application development needs.
Led initiatives to streamline database operations, enhancing efficiency across departments.
Evaluated new technologies to improve database functionality and user experience.
Streamlined backup and recovery processes, enhancing overall system stability and availability.
Ensured database security with implementation of role-based access control and regular vulnerability assessments.
Reduced data retrieval times for business users by creating indexed views and optimizing stored procedures.
Built databases and table structures for web applications.
Set up and controlled user profiles and access levels for each database segment to protect important data.
Enhanced reporting capabilities by designing efficient ETL processes that improved data accuracy and completeness.
Modified databases to meet needs and goals determined during planning process.
Conducted regular audits of data quality, identifying inconsistencies and implementing corrective actions as necessary.
Administered, supported, and monitored databases by proactively resolving database issues and maintaining servers.
Set up and controlled user access levels across databases to protect important data.
Maintained high levels of customer satisfaction by consistently meeting service level agreements for database performance and availability.
Provided timely resolution of critical production issues, minimizing downtime and avoiding potential revenue loss.
Created and updated database designs and data models.
Collaborated with cross functional teams to develop custom applications that supported business objectives and met user needs.
Evaluated emerging technologies to identify opportunities for improving database operations and reducing costs.
Developed scripts and processes for data integration and maintenance.
Standardized database object naming conventions across multiple systems, resulting in easier management of objects during troubleshooting sessions.
Developed comprehensive documentation on database architecture, simplifying future upgrades and maintenance tasks.
Oracle Database Administrator (DBA)
TECHNOLOGY GROUP Associates.
08.2022 - 03.2023
Database Administration & Optimization
Proposed and implemented database changes to streamline monitoring and reduce administrative effort.
Developed automated processes to support database creation and management in virtualized and cloud environments.
Monitored, analyzed, and optimized database activity, proactively identifying performance issues and recommending improvements.
Designed, tested, and implemented comprehensive backup and recovery strategies for OLTP and DSS applications, ensuring 24/7 database availability.
Generated and analyzed STATSPACK reports to fine-tune performance and resolve database issues in real time.
Led migrations and upgrades from Oracle 10G to 11G and 12C to 19C, ensuring seamless transitions across both Windows/Unix environments.
Collaboration & Cross-Functional Support
Fostered strong working relationships with cross-functional teams to understand IT requirements and provide DBA support for various applications.
Liaised with system administrators to monitor, troubleshoot, and resolve database incidents, ensuring minimal disruption to services.
Provided resources and expertise to support DBA functions and work closely with third-party vendors and customers.
Security & User Access Management
Set up and controlled user access levels to secure sensitive data across databases.
Managed security administration, including user creation, role management, and privilege granting for database access.
Database Design & Development
Designed and developed analytical data structures, ensuring efficient data processing for business intelligence applications.
Created and maintained database schemas, including tablespaces, tables, views, and indexes, for OLTP and OLAP systems.
Allocated system storage and planned for future growth, ensuring database scalability.
Incident Management & Troubleshooting
Played a key role in situation management of incidents, minimizing production downtime and resolving database issues efficiently.
Recovered databases from corrupted or lost data files in real-time, ensuring business continuity.
Administered Oracle databases, ensuring optimal performance and availability across multiple environments.
Developed and implemented backup and recovery strategies to protect critical data assets.
Monitored system performance, diagnosing issues to enhance database efficiency and reliability.
Collaborated with development teams to optimize SQL queries and improve application performance.
Implemented security measures, managing user access to safeguard sensitive information within databases.
Led database migration projects, streamlining processes for seamless transitions between systems.
Conducted regular audits of database configurations, identifying opportunities for improvement and compliance adherence.
Assisted in migrating databases to newer versions or alternate platforms, minimizing disruption to business operations.
Conducted regular performance audits, identifying areas for improvement and adjusting configurations as needed.
Troubleshot database issues to create and resolve trouble tickets.
Monitored and analyzed database activity to identify and prevent incidents and recommend performance improvements.
Liaised with system administrators to monitor, troubleshoot, triage and provide RCAs for incidents.
Reviewed database design to recommend enhancements or improvements.
Worked with customers and other third parties to support DBA functions.
Developed automated processes to manage database creation in virtualized or cloud environment.
Provided resources and skill sets to support DBA functions for applications.
Proposed database changes to ease monitoring and administrative effort.
Participated in situation management of incidents to support database operations.
Established working relationships across various departments to understand existing and emerging IT requirements.
Streamlined backup processes, ensuring timely recovery in case of data loss or system failure.
Served as a subject matter expert in meetings with stakeholders discussing project requirements related to Oracle Databases integration.
Improved database performance by optimizing SQL queries and implementing indexing strategies.
Provided technical support to end users, troubleshooting database related issues and offering guidance on best practices.
Oracle Application Database Administrator
DHL Supply Chain
11.2020 - 08.2022
Provided resources and skill sets to support DBA functions for applications.
Proposed database changes to ease monitoring and administrative effort.
Established working relationships across various departments to understand existing and emerging IT requirements.
Involved in the continuous enhancements and fixing of production problems. Generated server-side PL/SQL scripts for data manipulation and validation and materialized views for remote instances.
Tested and Implemented different physical and logical Backup and Recovery methods like point in time, Media recovery, Full/partial export/import.
Recovered databases from corrupted/lost data files on production systems.
Installed and Configured Oracle on both Windows and Linux Server.
Reviewed database design to recommend enhancements or improvements.
Responsible for Logical/HOT/Cold backup of Oracle Databases.
Database patching and upgrade support.
Follows, defines and manages enterprise level policies and procedures that ensure security, optimization and integrity of Oracle database environments.
Designs, implements and maintains physical and logical database solutions.
Anticipates and resolves database performance, capacity and replication issues.
Diagnose and address database performance issues.
Managed database backup & recovery procedures, disaster recovery preparation and the associated exercises.
Collaborates with SAN (Storage Area Network – disk behind servers), server, applications and operational staff in support of database objectives.
Assist development staff with application design and efficient use of database technology.
Monitored and analyzed database activity to identify and prevent incidents and recommend performance improvements.
Troubleshot database issues to create and resolve trouble tickets.
Developed automated processes to manage database creation in virtualized or cloud environment.
Conducted tests to identify issues and make necessary modifications.
· Supports project plans and schedules relative to database requirements
Administered Oracle databases ensuring optimal performance and availability for supply chain operations.
Implemented backup and recovery strategies to safeguard critical data integrity and accessibility.
Optimized query performance through tuning and indexing to enhance application efficiency.
Led database migration projects, streamlining transitions between environments with minimal disruption.
Developed and maintained database security protocols to protect sensitive information from unauthorized access.
Mentored junior DBAs, fostering skill development and enhancing team productivity in database management tasks.
Streamlined database administration tasks through the creation of custom scripts and automation tools, increasing productivity.
Oracle Database Administrator
Walmart
04.2020 - 10.2020
Provided resources and skill sets to support DBA functions for applications.
Installing and configured Oracle Enterprise Manager (OEM) / Grid Control for monitoring and administrative tasks purposes.
Responsible for all post migration analysis and tuning.
Installed and configured Oracle Data Guard on standby servers to online transfer and apply archived log files to keep standby server in sync with primary database.
Administered Oracle databases, ensuring optimal performance and uptime for retail applications.
Implemented backup and recovery strategies to safeguard critical data integrity.
Monitored database health using performance tuning techniques, proactively resolving issues before impact.
Maintained up-to-date documentation on database systems, ensuring accurate records of configurations, processes, and changes made over time.
Monitored and analyzed database activity to identify and prevent incidents and recommend performance improvements.
Participated in situation management of incidents to support database operations.
Liaised with system administrators to monitor, troubleshoot, triage and provide RCAs for incidents.
Troubleshot database issues to create and resolve trouble tickets.
Developed and updated databases to handle customer data.
Installed and configured middleware in Linux and Windows environments.
Wrote and maintained technical and functional specifications to document database intentions and requirements.
Set up and controlled user access levels across databases to protect important data.
24 X 7 Production Support. Responsible for Backup & Recovery for Oracle Database.
Adhered to set schedules to test databases for flaws and reduce downtime.
Conducted tests to identify issues and make necessary modifications.
Cloning of production databases to test environment for testing and training purposes.
Data Analyst /Jr. DBA
Great Eagle Maritime International
11.2010 - 11.2015
Created and updated database designs and data models.
Designed and Installed the Oracle 8i, 9i, 10g, and 11g databases.
Responsible for pre-install analysis, activities, and installation of 8i, 9i, 10g and 11g software on server and clients and post-install testing and analysis.
Administered, supported, and monitored databases by proactively resolving database issues and maintaining servers.
Tested programs and databases to identify issues and make necessary modifications.
Set up and controlled user profiles and access levels for each database segment to protect important data.
Planned, tested and performed Database backup and recovery plan and upgrade from Oracle Database 11.2.0.4 to 12.1.0.1
Created user accounts and granted them appropriate roles and disk quotas for production usage.
Managed various users' sessions both in UNIX and WINDOWS environments.
Worked with staff to develop and implement procedures to prevent data loss and maximize system availability.
Built databases and table structures for web applications.
Developed scripts and processes for data integration and maintenance.
Enhancing SQL statements performance using Explain Plan and Oracle optimizer hints
Troubleshooting ORA-xxxx errors, adding data files to tables paces during data load operation if required.
Analyzed complex datasets to identify trends and inform business decisions.
Developed comprehensive reports for stakeholders, enhancing data-driven decision-making processes.
Collaborated with cross-functional teams to streamline data collection and reporting procedures.
Drove process improvements that increased operational efficiency and reduced turnaround times for reports.
Created various Excel documents to assist with pulling metrics data and presenting information to stakeholders for concise explanations of best placement for needed resources.
Education
Bachelor of Science - Computer And Information Sciences
Ambrose Alli University (AAU)
Ekpoma 310103, Edo, Nigeria
11-2018
NATIONAL DIPLOMA - Business Administration And Management
Federal Polytechnics Auchi
AUCHI, EDO STATE, NIGERIA
10-2010
Skills
Systems administration
Database development
Database migration
Relational Database Management
Linux operating system
Compiling data
Data audits
Time management
Data integration
Maintenance and Repair
Analytical and Critical Thinking
Attention to Detail
Good Telephone Etiquette
Teamwork and Collaboration
Operating System
NetSuite ERP
Adaptability
Logical thinking
Problem-solving skills
Database troubleshooting
Backup and recovery
Performance tuning
Oracle database administration
Storage management
Oracle enterprise manager
Oracle ASM management
Database cloning
Excellent communication
Certification
Oracle Database 11g: SQL Fundamentals 1
Cloud Computing Technologies Introduction
Introduction To Networking
Linux® Administration and Support
Microsoft Azure Administrator (AZ-104)
Overview of Cloud Computing Certificate
Handling Sensitive Data with Cloud and Local AI
Learning Microsoft 365 Copilot for Work (2024)
An Overview of Microsoft’s AI Tools
AWS DevOps Best Practices for Beginners
Timeline
Database Administrator Advance
State of Tennessee
04.2023 - Current
Oracle Database Administrator (DBA)
TECHNOLOGY GROUP Associates.
08.2022 - 03.2023
Oracle Application Database Administrator
DHL Supply Chain
11.2020 - 08.2022
Oracle Database Administrator
Walmart
04.2020 - 10.2020
Data Analyst /Jr. DBA
Great Eagle Maritime International
11.2010 - 11.2015
Bachelor of Science - Computer And Information Sciences
Ambrose Alli University (AAU)
NATIONAL DIPLOMA - Business Administration And Management
IT Infrastructure Lead-Senior Database Administrator at Great Hill SolutionsIT Infrastructure Lead-Senior Database Administrator at Great Hill Solutions