Ismail Olatunji

Skills

BI & Performance Analytics: KPI frameworks • Executive dashboards • Performance measurement • Decision support

Data Engineering: SQL (CTEs, joins, optimisation) • Python (Pandas) • ETL automation • Data pipelines

Visualisation: Power BI (DAX) • Tableau • Excel (Power Query) • Dashboard design

Data Governance: Data quality frameworks • GDPR compliance • Data integrity controls • Auditability

Advanced Analytics: Regression • Classification • A/B testing • Segmentation • Time series

Platforms: Azure (Data Factory, Databricks, Synapse – foundational) • BigQuery • GA4

About

Data Analyst with 7+ years of experience delivering performance reporting and data-driven insight to support operational and strategic decision-making across commercial and public-sector–aligned environments. Skilled in SQL, Python and Power BI, with a strong track record of building automated ETL pipelines, executive dashboards and scalable BI solutions that improve visibility, efficiency and data reliability. Experienced across the full analytics lifecycle, including requirements gathering, KPI design, data validation and executive reporting, translating complex datasets into clear, actionable insights for stakeholders while maintaining a strong focus on data quality, governance, and evidence-based service improvement.