ONYINYE RACHEAL CHUKWU

Data Analyst | Data Engineer | Business Intelligence
Lagos, NG.

About

Highly analytical Data Analyst and Data Engineer with 6 years of experience in quality assurance, adept at leveraging Python, SQL, Power BI, and machine learning to transform raw data into actionable insights and deployed solutions. Proven ability to build production-grade ML systems and FastAPI inference APIs, I am seeking an entry-level data role to apply analytical rigor, cross-functional collaboration, and end-to-end project delivery skills to drive immediate value and impactful data-driven decisions.

Work

Strongpack Limited
|

Quality Assurance Technician

Summary

Monitored production lines and incoming materials against quality benchmarks, identified defect patterns, and authored detailed monthly reports to drive measurable reductions in non-conformances and inform process improvements.

Highlights

Monitored production lines and inspected incoming materials against quality benchmarks, identifying defect patterns early and escalating issues to production leads, driving measurable reductions in repeat non-conformances.

Analyzed defect trend data across production batches and authored detailed monthly reports, with recommendations informing two process engineering changes adopted by the operations team.

Produced all compliance documentation and audit-readiness reports for regulatory inspections, aligning records to applicable standards and achieving zero major non-conformances across all audits conducted.

Maintained accurate quality control databases and traceability records, ensuring data integrity across the entire production lifecycle from incoming materials through to finished goods dispatch.

Primera Food Limited
|

Quality Control Analyst

Summary

Conducted quantitative laboratory analysis and sensory evaluations to ensure consistent product quality, monitored warehouse conditions, and supported regulatory compliance to maintain material integrity and shelf-life compliance.

Highlights

Conducted quantitative laboratory analysis (physical, chemical, microbiological) and sensory evaluations on raw materials, work-in-progress, and finished food products, ensuring consistent quality at every production stage.

Monitored and recorded warehouse storage conditions (temperature, humidity, stock rotation) to maintain material integrity and shelf-life compliance across all stored product categories.

Supported regulatory compliance with NAFDAC food safety guidelines and internal quality standards, contributing to a track record of zero critical audit findings across all regulatory inspections.

Collaborated with production, procurement, and logistics teams to resolve quality issues at source, developing corrective action documentation and tracking resolution to close-out.

Education

Enugu State University of Science and Technology

B.Sc (Hons)

Food Science & Technology

Women Techsters Fellowship (Tech4Dev)

Fellowship

Data Science & Engineering Track

Courses

Industry-aligned programme: data analysis, data engineering, BI, Python, SQL, Power BI, Tableau, data cleaning, insight reporting

DeepTech (Data Science Nigeria)

Specialisation

Data Engineering Specialisation

Courses

Hands-on cloud data engineering: Azure Data Factory, Python pipelines, Docker, data ingestion and transformation at scale

Techerdemy (TD Africa)

Intensive Program

Data Science Track

Courses

Six-month intensive: Excel, SQL, Power BI, Python, data cleaning, visualisation, and analytical problem-solving

Certificates

Introduction to Data Analytics

Issued By

IBM/Coursera

Python for Data Analysis

Issued By

Udemy

Fundamental of Python Machine Learning

Issued By

Udemy

Skills

Languages

Python, SQL.

Analytics & BI

Power BI (DAX), Tableau, Microsoft Excel, Google Sheets.

ML & Modelling

XGBoost, Random Forest, Scikit-learn, SMOTE, Feature Engineering, EDA.

Cloud & Engineering

Azure, Docker, FastAPI, MySQL, ETL Pipelines.

Dev Tools

Git, GitHub, Jupyter Notebook, VS Code.

Soft Skills

Cross-functional collaboration, Stakeholder communication, Analytical thinking.

Projects

ShuleTrackAI — AI Student Dropout Risk Prediction Platform

Summary

Designed and trained a multi-class dropout risk classifier using Random Forest and XGBoost on 15,000 student records, meeting production deployment thresholds as part of a 5-discipline cross-functional team agile MVP sprint.

Patient Health Metrics Dashboard

Summary

Cleaned and reshaped a multi-source patient dataset using Power Query, resolving structural inconsistencies, duplicate records, and missing values to create a reliable analytical base for a clinical KPI dashboard.

Car Sales Performance Dashboard

Summary

Developed an executive-level interactive sales dashboard using Power BI, implementing advanced DAX measures and dynamic filters to support strategic decision-making and self-serve analysis.

Supply Chain Efficiency Analysis

Summary

Wrote complex multi-table SQL queries across 6 tables to expose hidden bottlenecks in supplier, order, inventory, and logistics datasets, identifying 3 distinct procurement inefficiency patterns and compiling a structured findings report.