Leonard Lekefua (Leo)
About Leonard Lekefua (Leo)
Leonard Lekefua, also known as Leo, is a Principal Oracle Database Administrator with extensive experience in database management and security. He has worked for various organizations, including the U.S. Securities and Exchange Commission and Target, and holds a Bachelor of Science in Mathematics and Computer Science from the University of Buea.
Current Role at U.S. Securities and Exchange Commission
Leonard Lekefua serves as the Principal Oracle Database Administrator (DBA) at the U.S. Securities and Exchange Commission (SEC) since 2020. In this role, he is responsible for managing and optimizing Oracle databases to ensure efficient performance and security. He has achieved a 30% performance gain by transitioning standalone databases into 12c multitenant databases. His contributions have also led to significant cost savings, with the SEC realizing approximately 20% in annual infrastructure expenses through application consolidation.
Previous Experience at Target
From 2010 to 2013, Leonard Lekefua worked as an Oracle DBA at Target in the Greater Minneapolis-St. Paul Area. During his tenure, he focused on database management and optimization, contributing to the overall efficiency of the organization's database systems. His experience at Target laid the foundation for his subsequent roles in database administration.
Education and Training in Database Administration
Leonard Lekefua holds a Bachelor of Science degree in Mathematics and Computer Science from the University of Buea, where he studied from 2005 to 2008. He furthered his education in database administration by completing a program at Jelani Consulting LLC, specializing in Data Modeling/Warehousing and Oracle Database Administration in 2007. Additionally, he studied Computer Science at Prince George's Community College, enhancing his technical skills in the field.
Experience at Maryland Judiciary
Leonard Lekefua worked as a Senior Database Security and Compliance Specialist at the Maryland Judiciary from 2017 to 2020. In this role, he focused on enhancing database security and compliance measures. He successfully reduced database incidents from over 35 per week to about 5 through automation and redesign, showcasing his ability to improve operational efficiency.
Contributions to Database Upgrades and Disaster Recovery
Throughout his career, Leonard Lekefua has made significant contributions to database upgrades and disaster recovery planning. He successfully upgraded a legacy database from Oracle 11g to 19c, addressing invalid data dictionary components. He also developed and maintained a Disaster Recovery plan using Data Guard Broker in a multitenant environment, ensuring data integrity and availability.