E-Commerce Customer Retention & Revenue Leakage Dashboard
Analyzed 50,000+ transaction rows to track cohort retention, identify high-churn customer segments, and build an automated KPI reporting system.
Hi, I'm Attariq Novemberiandi, S.T. (Ian / Atar) — Top Rated Data Visualization & GIS Specialist at nvandi.data. I help teams structure scattered datasets, validate metrics with statistical logic, and build decision-ready maps, ETL pipelines, and BI dashboards.
Top Rated Upwork Freelancer specialized in BI dashboards, GIS mapping, & statistical data analysis.

"Attariq is doing a fantastic job and delivering high-quality work with strong attention to detail. His communication has been clear, consistent and always on schedule. He's been very easy to work with and made the entire process smooth for me. I have been hiring on Upwork for almost 10 years and this is not common in many freelancers on the platform. To me Attariq is an outlier in every positive sense and I plan to continue working with Attariq in the future."
Real data analytics projects demonstrating business impact, data modeling, and visualization clarity.
Analyzed 50,000+ transaction rows to track cohort retention, identify high-churn customer segments, and build an automated KPI reporting system.
An interactive data story deconstructing exchange rates vs. real purchasing power in Indonesia using multi-variate time series visual models.
Quantitative analysis debunking public policy myths around rural agricultural commodity prices and foreign exchange fluctuations.
Tailored analytics & data visualization services for companies, startups, and consulting clients.
Custom dashboards in Tableau, Power BI, or Looker Studio designed for executive decision-making, automated KPI tracking, and operational clarity.
Deep dives into complex raw datasets (SQL/Python) to uncover hidden patterns, customer behavior insights, and data-backed growth opportunities.
Bespoke, interactive data graphics built directly for the web (Chart.js, Canvas, D3) to turn complex data into captivating digital stories.