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khaledzidan203-stack/README.md

Khaled Zidan

Data Analyst · Business Intelligence · Analytics Engineering

Retail & Category Management | Healthcare Analytics | Supply Chain & Inventory

I turn complex datasets into reliable KPIs, reproducible analytical models, and actionable decisions — combining business-domain knowledge with SQL, Python and Power BI.

Power BI / DAX · SQL · Python · Power Query · PostgreSQL · DuckDB · Excel · GitHub Actions

LinkedIn · Featured work · All repositories

Featured project — CategoryLab 360

CategoryLab 360 — Executive Decision Intelligence Power BI report

Retail promotion decisions backed by financial governance, causal inference and constrained optimization.

120 simulated stores · 60 SKUs · 104 historical weeks · 10 Power BI pages. Python + DuckDB + PBIP/PBIR + DAX, randomized experiments, Difference-in-Differences, and evidence-gated promotion planning.

Business conclusion: the evidence is inconclusive, so the supported primary decision is no promotion rollout. The released Power BI dashboard opens from a fresh GitHub ZIP using its portable launcher; this does not imply full independent recreation of every experiment.

Explore CategoryLab 360 → · View all dashboard pages → · Run the report →

Selected projects

Six projects selected to demonstrate complementary retail, customer, inventory, healthcare, analytics engineering and BI capabilities.

Project Evidence of capability
CategoryLab 360 Causal promotion evaluation, accounting integrity, constrained optimization, 10-page Power BI report
Enterprise Retail Warehouse & Inventory Intelligence Public retail source data, Python/SQLite analytics, store/DC stock insights, 8-page Power BI report
Healthcare Interoperability & Claims Intelligence Synthetic CMS/FHIR claims, PostgreSQL, dimensional modeling, CI regression, 7-page Power BI report
Hospital360 End-to-end synthetic hospital data engineering and analytics, 5,000-patient baseline, 13-page Power BI report
Online Retail Growth & Customer Intelligence Public UCI retail source, RFM, customer cohorts, SQL Server and Power BI
RetailPulse 360 Reproducible multi-branch retail BI, dynamic KPIs and LFL, 11 report pages; Desktop QA still pending
See dashboards from the other featured projects
Retail performance Warehouse & inventory
RetailPulse 360 dashboard Enterprise retail inventory dashboard
Healthcare claims Hospital performance
Healthcare interoperability dashboard Hospital360 dashboard

Online Retail Growth dashboard

What I bring to analytics teams

  • Business & commercial analysis: sales, profitability, margins, basket size, budgets, LFL performance, assortment, supplier and inventory decisions.
  • Analytics engineering: SQL modeling, Python pipelines, governed source grains, data quality, reproducible transformations and source lineage.
  • Decision science: experiments, Difference-in-Differences, evidence limitations, customer segmentation and constrained optimization.
  • BI delivery: Power BI, Power Query, DAX, editable PBIP/PBIR reports, automated data connections, reconciliation and documentation.

Background: Pharmacy · MBA · DataCamp Data Analyst Associate. Interested in full-time Data Analyst, BI Analyst, Healthcare Analytics and Retail/Supply Chain Analytics opportunities.

More projects: category management, governance, operations and specialized analytics

Retail, pharmacy and operations

Healthcare and data governance

From governed data to defensible decisions.

Explore all projects · Connect on LinkedIn

Project-specific validation boundaries and data licenses are documented in each repository. Synthetic work is labeled as such; screenshots and pre-release projects are not presented as production certification.

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  1. online-retail-growth-customer-intelligence online-retail-growth-customer-intelligence Public

    End-to-end retail analytics portfolio using SQL Server, Python, Power BI, DAX, RFM, cohort analysis and management Excel outputs.

    Python 1

  2. pharmacy-category-management pharmacy-category-management Public

    Production-style pharmacy category management analytics portfolio using SQL Server, Python, Power BI/DAX, inventory, supplier, assortment and commercial analytics.

    Python

  3. Hospital360 Hospital360 Public

    Production-style hospital analytics platform designed around real-world healthcare performance use cases, covering patient activity, finance, workforce, operations, and technology using PostgreSQL,…

    Jupyter Notebook 1

  4. regional-sales-analytics-portfolio regional-sales-analytics-portfolio Public

    Regional sales performance analytics portfolio covering budget gaps, LFL analysis, intervention impact, channel contribution, AST, customer count, and data quality.

    HTML

  5. saudi-healthcare-analytics saudi-healthcare-analytics Public

    End-to-end Saudi healthcare analytics using official MOH statistics, SQL Server, Power BI, DAX, PBIP/PBIR and governed KPI validation.

    Python

  6. transaction-reconciliation-anomaly-detection-analytics transaction-reconciliation-anomaly-detection-analytics Public

    Transaction reconciliation, exception analytics and anomaly detection using Python, SQL, fuzzy matching, automated tests and Power BI-ready outputs.

    Python