Chukwunonso E. Email & Phone Number

Lagos, La, Ng

Lagos, La, Ng

Kosofe, Lagos State, Nigeria

• Engineered the data warehousing of all our databases using Pentaho, Visual Studio Code, and Apache Spark, integrating data from multiple sources and improving data accessibility and reporting capabilities.• Designed and implemented ETL processes to extract data from multiple sources, transform it to meet business requirements, and load it into a centralized data warehouse. This improved data consistency and provided a single source of truth for reporting and analytics.• Leveraged Pentaho and Spark's powerful data processing capabilities for data processing pipelines, performance, scalability and analysis.• Led the installation, configuration, and maintenance of MySQL, PostgreSQL, and SQL Server databases, including successful upgrades, service packs, and security patches.• Designed, programmed, and maintained different SQL databases, ensuring efficient performance and data integrity.• Established Role-Based Access Control (RBAC) across various databases, ensuring stringent clarity to data access and security policies.• Consistently optimized database performance, enhancing system efficiency and user satisfaction• Provided training and guidance to team members, contributing to their professional development• Identified issues and recommended database improvements, enhancing overall system functionality.• Processed complex data requests and conducted testing to support modifications and upgrades.• Extensive experience managing and administering ERP systems databases (Odoo 16).

Lagos Island, Lagos, Nigeria

• Optimized database performance by developing and implementing innovative indexing and caching strategies, resulting in a 50% reduction in query execution time• Upgraded PostgreSQL from version 11 to version 14, ensuring compatibility and taking advantage of new features and improvements• Migrated Oracle databases to PostgreSQL, ensuring a smooth transition and minimal disruption to business operations• Providing technical support and troubleshooting for database-related issues• Developed and implemented comprehensive backup and disaster recovery procedures to ensure business continuity, minimizing data loss and downtime by 90%.• Tune database performance, optimize queries and enhance efficiency to maximize productivity.• Identified and resolved complex database issues, ensuring seamless database operations and minimizing downtime.• Implemented and managed database security policies, ensuring that all sensitive data is secure and compliant with industry standards and regulations• Worked closely with cross-functional teams to design and implement new database solutions, ensuring that all database architecture is scalable, efficient, and cost-effective

93A/94A Premier Layout, By New Artisan Near Dunamis Church, Enugu.

• Conceptualized, designed and developed software solutions to meet client’s requirement.• Worked on both front-end and back-end development tasks.• Managed website databases, implementing efficient database designs and optimizing performance for enhanced user experience• Collaborated with cross-functional teams to identify and resolve complex front-end and backend development challenges.• Implemented new tools and technologies to enhance software development processes, resulting in significant productivity gains and reduced time-to-market.• Documented software specifications and provided comprehensive technical support to end-users, ensuring successful software adoption and minimizing downtime.