Onyeme Elvis

Results-driven Data Analyst with 7+ years of professional experience delivering data-driven insights, business intelligence solutions, dashboards, reporting automation, customer analytics, and performance analysis. Experienced in transforming operational and customer data into actionable insights that support management decision-making and business growth. Strong hands-on experience with SQL, Python, Power BI, Tableau, Excel, Power Query, PivotTables, data cleaning, reporting automation, customer segmentation, A/B testing, cohort analysis, and predictive analytics.

Proven ability to develop dashboards and automated reporting solutions that improve decision-making and reduce manual reporting workload. Experienced in collaborating with cross-functional teams and presenting actionable findings to senior management.

DATA ANALYST - Abuja Electricity Distribution Company (AEDC) - Abuja, Nigeria

(2018-06)

• Develop and maintain Power BI and Tableau dashboards that provide management and business teams with timely visibility into operational and performance KPIs, contributing to a reported 30% improvement in decision-making speed.
• Analyze business and customer data using SQL and Excel to identify performance trends, exceptions, opportunities, and areas requiring management attention.
• Automated SQL-based weekly reporting processes, reducing manual reporting workload by 50% and improving reporting efficiency.
• Produce customer segmentation and behavioral analysis reports to support targeted business and customer engagement strategies.
• Conduct A/B testing and customer behavior analysis, contributing to a reported 15% improvement in customer retention.
• Analyze campaign and customer performance data and translate findings into actionable recommendations for cross-functional teams.
• Develop analytical reports and dashboards that support operational monitoring, management reporting, and data-driven decision-making.
• Collaborate with cross-functional teams to identify business requirements, analyze datasets, and communicate analytical findings to stakeholders.

MARKETING SUPERVISOR - Abuja Electricity Distribution Company (AEDC) - Abuja, Nigeria

(2023-09)

• Lead a cross-functional marketing team responsible for monitoring performance against engagement and conversion KPIs.
• Oversee data collection, analysis, and reporting using Excel dashboards and Power BI.
• Analyze prepaid meter usage and customer classifications to support service optimization and customer management.
• Develop data-driven strategies supporting commercial customer upgrades and billing efficiency.
• Prepare and present performance reports and actionable insights to senior management.
• Monitor business performance indicators and translate operational data into recommendations for improved performance.

Bachelor of Science (B.Sc.) - Geology - Ebonyi State University, Nigeria (2016-09)