Peter Erewa

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Freelancer Overview

Data Analyst | Power BI • Excel • Data Visualization EREWA PETER Data Analyst | Power BI • Excel • Data Visualization +234 703 672 9303 | erewapeter@gmail.com | Warri, Nigeria SUMMARY Data Analyst with 2 years of experience transforming complex datasets into actionable insights. Skilled in Power BI and Excel, with a proven track record of automating reporting processes, optimizing dashboards, and driving measurable business improvements. Experienced in Big Query, dB, and ETL tools to support efficient data-driven decision-making. TECHNICAL SKILLS - Programming & Analysis: Python (Pandas), Excel (Pivot Tables, VLOOKUP), SQL (Joins, CTEs, Window Functions) - Visualization: Power BI, Tableau, Looker - Data Engineering: dB, Big Query, Matillion - Modeling & Reporting: Star Schema, Fact & Dimension Tables, KPI Dashboards, Funnel Analysis, A/B Testing EXPERIENCE Quantivis Analytics Ltd | Lagos, Nigeria (Remote) Data Analyst | Feb 2023 – Feb 2025 - Automated Power BI dashboards, reducing reporting time by 40%. - Designed Star Schemas with dbt, enabling faster reporting. - Monitored user behavior and conversion rates, driving a 12% improvement. - Enhanced dashboard efficiency with dynamic filters, drill-throughs, and optimized refresh cycles. - Collaborated with technical teams to ensure accurate data mapping. Blue orbit Insights | Lagos, Nigeria Data Analyst | Jun 2022 – Jan 2023 - Migrated datasets to Big Query for improved performance. - Built KPI dashboards to strengthen manageme

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