Jonathan Spiff

I’m a detail-oriented Data Analyst with a B.Sc. in Management Information Systems, focused on turning complex datasets into clear, accurate reporting. I build reliable analysis workflows using Microsoft Excel as a primary tool for data cleaning, validation, and quality assurance.

During my internship with the Nigerian Content Development and Monitoring Board (NCDMB), I reviewed, cleaned, and validated high-volume structured datasets while maintaining 100% data quality and system fidelity. I also compiled and analyzed monthly datasets using SQL and BigQuery to identify trends and extract actionable business insights.

I’m comfortable spotting inconsistencies, trends, and anomalies in complex data, then documenting methodologies and findings with meticulous attention to detail. I collaborate with cross-functional stakeholders to translate data requirements into clear, end-of-month review reports.

Beyond analytics, I’ve applied my data and communication strengths in teaching—using Excel to evaluate student testing data, identify learning gaps, and adjust instructional strategies. I’m now seeking a role that supports data-driven decision-making and leverages my Excel and analytical skills on real-world datasets.