Data Analyst

Abdullah
Bin Masood

I turn raw data into decisions with SQL, pandas, and Google Sheets. Every project below is a full case study: problem, method, code, findings, and what the business should do next.

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8Case Studies

33Certifications

38M+Rows in largest project

Toolkit

What I work with

AdvancedSQL

Complex joins across normalized schemas, CTEs, window functions (NTILE, PERCENTILE_CONT, running aggregates), cohort and RFM segmentation, and query patterns that scale to tens of millions of rows.

PostgreSQLBigQueryWindow FunctionsCTEs

Advancedpandas / Python

Production-style data cleaning, groupby and pivot analysis, cohort banding with cut and qcut, chunked processing for datasets bigger than memory, and EDA that ends in business recommendations, not just charts.

pandasNumPyMatplotlibJupyter

AdvancedGoogle Sheets

Self-maintaining workbooks with QUERY, ARRAYFORMULA, XLOOKUP and SUMIFS. Live dashboards with pivots, sparklines, and conditional-format alerting that non-analysts can run.

QUERYARRAYFORMULAPivot TablesDashboards

Work