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Zeenah Hamzah

@zeenahhamzah

Data verification and cleaning specialist at HNG Data Analytics Internship who audited a six-table e-commerce database for accuracy.

Nigeria

Message

At HNG Data Analytics Internship, I audited and verified a six-table e-commerce database, identifying and resolving missing prices, payment discrepancies, and inconsistent formatting.

I also cross-checked entries across related tables to ensure records were consistent before they were used for reporting.

On an independent project, I reviewed 1,628 company records across 51 countries, removed duplicates, recovered missing values through cross-referencing, and standardized formatting.

At Federal Medical Centre, I provided technical maintenance and troubleshooting support for medical and operational equipment. I also maintained accurate records in a regulated healthcare environment.

Experience

Work history, roles, and key accomplishments

Duplicate & Missing Record Recovery

Independent Project

Reviewed a dataset of 1,628 company records across 51 countries, identifying and removing duplicate entries and recovering missing values through systematic cross-referencing. Standardized inconsistent formatting across the dataset to improve overall data reliability.

Data Cleaning Duplicate detection Data Standardization Excel SQL

Data Verification & Cleaning

HNG Data Analytics Internship

Audited and verified a 6-table e-commerce database, identifying and resolving missing prices, payment discrepancies, and inconsistent formatting. Cross-checked entries for accuracy across multiple related tables to ensure consistency before records were used for reporting.

Data Verification Data Cleaning Accuracy Checking Error Identification Duplicate detection Data Standardization Excel SQL

Technical Support / Maintenance Assistant

Federal Medical Centre

Provided technical maintenance and troubleshooting support for medical and operational equipment in a regulated healthcare environment. Maintained accurate records and strengthened attention-to-detail and cross-functional collaboration skills.

Technical Support Troubleshooting Record keeping Attention To Detail Collaboration

Multi-Source Data Consolidation

HNG Data Analytics Internship

Consolidated five years of inconsistently structured records into a single accurate dataset, resolving missing entries and unmatched values. Verified entries against source data to maintain accuracy throughout the consolidation process.

Data Consolidation Data Cleaning Data Verification Excel SQL