Summary
Overview
Work History
Education
Skills
Accomplishments
Certification
Timeline
ADDITIONAL INFORMATION
Generic

PEGGY OYAREKHUA

Data Analyst | Business Intelligence Analyst | Operations Analyst | Marketing Analyst

Summary

Insightful Data Analyst with expertise in transforming raw data into actionable insights using SQL, Power BI, and Excel. Skilled in data cleaning, visualization, trend analysis, and KPI reporting to drive data-informed decision-making. Experienced in developing executive-ready reports and communicating analytical findings to diverse stakeholders, enhancing operational efficiency and strategic outcomes.

Overview

2
2
Certifications
7
7
years of professional experience

Work History

Data Assistant (most Relevant to Analytics)

Ministry of Health
11.2016 - 11.2017

• Collected, cleaned, validated, and analyzed public health datasets to support evidence-based decision-making.

• Produced recurring analytical reports highlighting disease trends, operational metrics, and key public health indicators.

• Conducted trend analysis and maintained accurate documentation to support planning and reporting activities.

• Performed routine data quality checks to ensure reporting accuracy, data integrity, and compliance with reporting standards.

• Collaborated with healthcare stakeholders to improve reporting accuracy, data consistency, and timely submission of health records.

Personal Assistant| Reporting & Operations Support

Ephams Imperial Limited
02.2022 - 06.2023
  • Prepared recurring business reports and executive presentations to support operational planning and management decision-making.
  • Collected, organized, and validated operational data to ensure reporting accuracy and consistency.
  • Monitored business activities, tracked deliverables, and maintained performance records to improve operational efficiency.
  • Coordinated with internal and external stakeholders to gather business information and document action items.
  • Managed business documentation and reporting processes while maintaining accurate records and supporting workflow improvements.

Virtual Assistant| Business Operations & Reporting

Faithful Foods
03.2021 - 09.2022
  • Maintained and validated employee and customer records, ensuring data accuracy and completeness across operational databases.
  • Produced recurring operational reports to identify trends and support management decision-making.
  • Analyzed customer enquiries and operational information to identify recurring issues and recommend process improvements.
  • Performed data entry, documentation, and database maintenance while ensuring data integrity.

Education

BSc - Microbiology

Federal University of Technology
Owerri
10-2015

Skills

Data Analysis & Business Intelligence

SQL & Data Querying

Power BI Dashboard Development

DAX & Power Query

Data Visualization & Data Storytelling

Data Cleaning, Validation & Transformation

Dashboard Development & KPI Reporting

Business Intelligence Reporting

Trend, Performance & Root Cause Analysis

Marketing Analytics & A/B Test Analysis

Microsoft Excel (Advanced)

Executive & Operational Reporting

Business Performance Analysis

Process Improvement

Stakeholder Communication

Cross-functional Collaboration

Research, Documentation & Data Quality

Accomplishments

BMW Vehicle Sales Performance Dashboard
  • Built an interactive Power BI dashboard analyzing vehicle sales performance, revenue trends, and dealership KPIs using SQL, Excel, and DAX.
  • Performed data cleaning, transformation, and validation to improve reporting accuracy.
  • Conducted trend and performance analysis to identify top-performing vehicle models and regional sales patterns.
  • Developed executive-friendly dashboards using data storytelling techniques to support business decision-making.
Walmart Retail Sales Performance Dashboard
  • Analyzed retail sales data to evaluate revenue, profitability, product performance, and customer purchasing trends.
  • Designed interactive dashboards to monitor KPIs and support operational reporting.
  • Conducted exploratory and root cause analysis to identify underperforming product categories and sales opportunities.
  • Delivered actionable business insights supporting inventory planning and sales optimization.
AI Student Dependency & Career Analysis
  • Cleaned, validated, and analyzed survey data examining AI usage patterns, academic performance, and career readiness.
  • Developed interactive Power BI dashboards highlighting behavioural trends and demographic insights.
  • Applied statistical and trend analysis techniques to identify factors influencing AI dependency.
  • Presented findings through compelling visualizations and data storytelling.
Marketing Campaign Performance Dashboard | Power BI • SQL • Excel
  • Analyzed multi-channel marketing campaign performance using key metrics including CTR, Conversion Rate, CPC, CPA, ROAS, impressions, and engagement.
  • Cleaned, transformed, and validated campaign data to ensure accurate reporting and reliable performance analysis.
  • Performed A/B test analysis by comparing campaign variants to evaluate conversion performance and identify the highest-performing marketing strategies.
  • Developed an interactive Power BI dashboard to monitor campaign performance, customer engagement, and KPI trends through intuitive visualizations.
  • Conducted customer segmentation and performance analysis to uncover high-value audience groups and optimization opportunities.
  • Presented actionable insights and data-driven recommendations to support campaign optimization and marketing decision-making.

Certification

Excel Expert / Data Analyst Certification – Bizmarrow Technologies (2025-01 – 2025-06)

Timeline

Personal Assistant| Reporting & Operations Support

Ephams Imperial Limited
02.2022 - 06.2023

Virtual Assistant| Business Operations & Reporting

Faithful Foods
03.2021 - 09.2022

Data Assistant (most Relevant to Analytics)

Ministry of Health
11.2016 - 11.2017

BSc - Microbiology

Federal University of Technology

ADDITIONAL INFORMATION

  • Fluent in English
  • Available for immediate employment
  • References available on request
PEGGY OYAREKHUAData Analyst | Business Intelligence Analyst | Operations Analyst | Marketing Analyst