data-analytics-portfolio

Detects when a cat walks on your keyboard desktop notification, optional screen lock.

End-to-end E-commerce Revenue & KPI Analysis using Python, SQL Server, and Power BI. Includes data cleaning, SQL modeling, DAX KPIs, and an interactive BI dashboard.

Professional development environment for PySpark ETL interviews and practice.

A comprehensive geospatial analysis and visualization platform for Mars exploration data, integrating NASA's Mars datasets, USGS planetary data, and advanced AI/ML techniques for terrain analysis, landing site selection, and mission planning support.

End-to-end retail sales data analysis project using Python (Pandas) and Power BI. Includes data cleaning, exploratory analysis, KPI reporting, and business insights.

An analytical study of how Bitcoin market sentiment (Fear vs Greed Index) influences trading volume, leverage behavior, and profitability using historical data.

End-to-end customer sales data analysis using Python, including data cleaning, transformation, and business insights visualization.

Source-level patches for AMD ROCm to fix critical memory coherency issues on RDNA1/2 consumer GPUs

BI & Data Analytics Portfolio

SQL data analysis project using SELECT, JOIN, GROUP BY, and ORDER BY queries to analyze sales performance, revenue trends, and customer purchasing behavior.

End-to-end Data Analytics portfolio featuring 21 business case studies: RFM segmentation, A/B testing, cohort & funnel analysis, exploratory data analysis (EDA), and operational KPI frameworks using Python.

Realistic synthetic Bangladesh HR analytics portfolio with 13 CSV datasets, 13 Excel workbooks, 186 documented fields, interactive dashboards, Kaggle metadata and a Python EDA notebook.

Analisis kinerja bisnis Kimia Farma 2020–2023 atas 672.458 transaksi di 1.725 cabang. Pipeline Medallion SQL (Bronze–Silver–Gold) + dashboard Power BI. Temuan: margin stabil 28,4% tapi pendapatan stagnan, 79,9% profit bergantung pada satu tier harga.

Analisis performa iklan digital 6 klien agency sepanjang 2023 (4.380 baris) pakai Python & pandas. Temuan: 50% budget parkir di objective tanpa revenue, campaign Sales sebenarnya untung ROAS 1,62, kebocoran funnel ada di tengah bukan di checkout.

Tableau dashboard analyzing British Airways customer review data to evaluate airline service performance across aircraft types, locations, and time.

People analytics 500 karyawan: 13 pertanyaan HR dijawab dari 5 tabel via pipeline Medallion T-SQL (20 gold view) + dashboard Power BI. Temuan: turnover 18% terkonsentrasi di 2 tim, premi promosi 8,3% kalah dari annual review, gap gender 13,6%.

Power BI dashboard analyzing ₹22.97M e-commerce revenue across 17K orders — Electronics leads at 48%, Credit Card dominates at 39.89%, monthly trends Jan 2023–Mar 2024

Interactive Power BI sales dashboard analyzing revenue drivers, customer purchasing patterns, daypart sales distribution, and product mix for Rich Coffee.

Professional portfolio of Omobolanle Esther Adelekun, showcasing public health, field epidemiology, immunization, research and data analytics work

Comprehensive Power BI end-to-end analytics dashboard for Maven Market (1997–1998) analyzing sales revenue, profitability, product brand performance, regional transaction volume, and return rates.