ONYEMA EZEKWESIRI
Detail-oriented Data Analyst with over five (5) years of experience in data
collection, processing, and visualization. Skilled in SQL, Python, and BI tools to
derive actionable insights. Adept at collaborating with cross-functional teams
to drive data-driven decisions.
lose 5, Sparklight Estate,
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Ojodu Berger, Lagos State,
Nigeria.
( --
https://www.linkedin.com/in/
onyemaeze/
EXPERIENCE
Index Solution—Virtual Data Steward
SKILLS
AUG 2022 - DEC 2024
Data Analysis & Visualization
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nalyzed large datasets to identify trends, patterns, and insights,
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increasing business efficiency.
Developed automated dashboards using Power BI and Excel,
reducing manual reporting hours per week.
Collaborated with stakeholders to define key performance
indicators (KPIs) and improve decision-making.
Optimized SQL queries, reducing data retrieval time.
QapitaPay—Technical Product Analyst
APR 2021 - FEB 2023
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reated Excel-based reports to monitor performance and identify
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improvement opportunities.
Conducted statistical analysis and A/B testing to support
marketing and product teams.
Document product API’s, keys and user flow guidelines for easy
useability of developed products and softwares.
Cleaned, transformed, updated and analyzed
structured/unstructured data from multiple sources.
(Power BI, Excel, Tableau)
SQL & Database Management
Python for Data Science
Statistical Analysis & A/B
Testing
Data Cleaning &
Preprocessing
Machine Learning (Basic
Knowledge)
Business Intelligence &
Reporting
ETL Processes & Data
Warehousing
Code Basics —Data Analyst (Intern)
EDUCATION
MAY 2021 - APR 2022
University of Portharcourt
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I nterpret data to big organizations enabling users to make data
informed decisions.
Connected Power BI with MySQL to import millions of records
and perform data transformation in Power Query.
Built dashboards in Power BI from scratch which supported the
organization in gross margin improvement.
Exported my dashboards to Power BI website, Tableau Online, as
PDF and as PowerPoint presentation
Kulenga Research Lab—Data Research Analyst
MAR 2018 - APR 2021
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onfirmed accuracy of data before integration.
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Review and maintenance of data models and processes to meet
business requirements.
Automate work-flow processes for easy replication.
Mined data to identify trends for business decision-making.
Bachelor (B.Sc)
January 2012 - February 2016
LANGUAGES
ENGLISH - Fluent
