Paul Chukwujekwu
@paulchukwujekwu
Senior Database Engineer with extensive experience in database management.
NigeriaWhat I'm looking for
My name is Paul Chukwujekwu, and I am a seasoned Senior Database Engineer with over 18 years of experience in Information Technology, specializing in Oracle Database Administration. Currently, I manage the entire database infrastructure for MTN Nigeria, ensuring optimal performance and reliability across various database platforms including Oracle, Microsoft SQL Server, MySQL, and PostgreSQL. My expertise extends to cloud technologies, where I hold multiple certifications including AWS Certified Solutions Architect and Oracle Cloud Infrastructure Architect Associate.
Throughout my career, I have successfully led teams and managed complex database environments, implementing best practices in database maintenance, performance tuning, and security. My hands-on experience encompasses a wide range of RDBMS and platforms, enabling me to deliver high-quality solutions that meet business needs. I am passionate about resolving critical performance issues and have a proven track record of optimizing database operations, reducing costs, and enhancing data integrity.
Experience
Work history, roles, and key accomplishments
Senior Oracle Database Engineer
Bluechip Technologies Ltd
May 2024 - Present (1 year)
Currently managing and administering all databases for MTN Nigeria, including Oracle database clusters, Microsoft SQL Servers, MySQL, PostgreSQL, and MongoDB clusters.
Senior Database Administrator
9Mobile Telecommunications Ltd
Sep 2022 - Apr 2024 (1 year 7 months)
Led the management and administration of all databases in the 9mobile IT Infrastructure, ensuring optimal performance and maintenance across various database platforms.
Senior Operation and Maintenance Management Engineer
Huawei Technologies Co., Ltd.
Oct 2018 - Aug 2022 (3 years 10 months)
Managed Oracle software installations, configurations, and performance tuning while providing support to users and ensuring database integrity and performance.
Senior DBA
Huawei/QualiServe Technologies Limited
Jul 2017 - Oct 2018 (1 year 3 months)
Managed end-to-end administration of on-premise databases for 9Mobile, ensuring high availability and performance across various platforms.
Head Database System Administration
Megatek Application Software Technologies Ltd
Jul 2016 - Apr 2017 (9 months)
Provided Oracle database consulting, recommending solutions for database structure, security, and performance while interfacing with clients for database requirements.
Freelance DBA
Pinnovate Technologies and Resources Ltd
Jul 2015 - Jul 2016 (1 year)
Provided consulting services for database management and administration, focusing on performance tuning and security.
Systems and Server Operations Specialist
IBM West Africa Ltd
Dec 2012 - Jul 2015 (2 years 7 months)
Managed database administration for various enterprise applications, ensuring high availability and performance across multiple platforms.
Specialist Database Administrator
Multilinks Telkom
Feb 2009 - Jul 2009 (5 months)
Focused on database architecture, performance tuning, and security management for various telecommunications solutions.
Oracle Faculty Training and Consultancy
Software Technology Park
Jan 2007 - Feb 2008 (1 year 1 month)
Instructed courses on Oracle database administration and UNIX, providing training and consultancy services.
Team Lead - Systems and Database Administrator
Mara-Ison Technologies
Jan 2007 - Jan 2012 (5 years)
Led the administration of PreTUPS databases and AIX servers, ensuring optimal performance and reliability for ERC applications.
Education
Degrees, certifications, and relevant coursework
UWUniversity of South Wales
Master of Laws, Law
2007 - 2012
Completed a Master of Laws (LLM) focusing on various aspects of law, enhancing legal knowledge and analytical skills.
UNUniversity of Nigeria, Nsukka
Bachelor of Science, Computer Science/Statistics
1997 - 2002
Earned a Bachelor of Science degree in Computer Science/Statistics, gaining foundational knowledge in computing and statistical analysis.
IEInstitute of Management and Technology, I.M.T Enugu
Higher National Diploma, Business Administration
1991 - 1996
Grade: Upper Credit
Achieved a Higher National Diploma in Business Administration and Management with Upper Credit, focusing on management principles and practices.
Abubor Central School
First School Leaving Certificate, General Education
1985 - 1990
Received First School Leaving Certificate, marking the completion of primary education and foundational learning.
Nnewi High School
Senior Secondary Certificate, General Education
1985 - 1990
Completed secondary education, obtaining the Senior Secondary Certificate Examination (SSCE), which provided a solid educational foundation.
Availability
Location
NigeriaAuthorized to work in
Skills
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