Duruwandu, Precious Chinagorom

Data Analyst

Port Harcourt, NG.

About

Highly analytical Data Analyst with a proven track record of transforming complex datasets into actionable business intelligence. Adept at leveraging Power BI, Excel, SQL, and Python to develop interactive dashboards, monitor key performance indicators (KPIs), and generate strategic insights that enhance operational efficiency and drive data-driven decision-making.

Work

Streams of Knowledge International Secondary School

|

Operations Support & Science Lead

Aba, Abia State, Nigeria

→

Summary

Led operational support and science initiatives, streamlining administrative processes and enhancing performance tracking for a secondary educational institution.

Highlights

Managed comprehensive records and prepared detailed reports, enhancing performance tracking and supporting data-driven operational decisions for improved efficiency.

Coordinated complex schedules, documentation, and administrative tasks, ensuring smooth daily operations for a large educational institution.

Identified workflow inefficiencies and implemented structured process improvements, successfully reducing operational delays and enhancing departmental coordination.

Dabur

|

Operations Intern (Quality & Packaging)

Lagos state, Nigeria, Nigeria

→

Summary

Supported critical production and packaging operations, ensuring compliance and enhancing efficiency within a regulated manufacturing environment.

Highlights

Contributed to a 5% increase in operational efficiency by supporting daily production and packaging activities in a regulated manufacturing setting.

Achieved 100% accurate product labeling and ensured strict adherence to NAFDAC regulatory guidelines, effectively mitigating compliance risks.

Collaborated with cross-functional teams to streamline production processes, reducing packaging errors by 8% and improving overall operational efficiency.

Education

Abia State University

Uturu, Abia State, Nigeria
→
B.Sc. Industrial Chemistry

Skills

Data Visualization

Power BI, Excel, Matplotlib, Seaborn.

Programming & Querying

Python (Pandas), SQL (PostgreSQL).

Data Processing

Power Query, ETL, Data Cleaning, Transformation.

Analytics

EDA, Dashboard development, Statistical Analysis, Business Intelligence.

Database & Modelling

Data Modeling, Star Schema, CTEs, Window Functions.

Projects

Banking Transaction Analysis

Summary

Transformed and consolidated a fragmented 680+ record banking dataset into an analysis-ready database using Power Query ETL workflows and transaction classification logic.

E-Commerce Sales Data Exploration & Cleaning Pipeline

Summary

Cleaned and transformed a 1,200+ row e-commerce dataset using Pandas by handling missing values, correcting datatypes, and standardizing inconsistent text records.

Sales Data Pipeline & Revenue Analysis Dashboard

Summary

Developed an end-to-end sales analytics pipeline using Power Query and Power BI, including data cleaning, transformation, and dashboard reporting.