Nkosana Molefe

Johannesburg

Building Transactional Volume Forecasting

About

I'm a data scientist who enjoys digging into messy data and finding patterns. Most of the real magic happens in the cleanup and edge cases nobody notices and that's my favourite part.

Projects

2026

Transaction Volume Forecasting

Forecast each customer’s bank transactions over the next three months.Forecast period: Nov 2015–Jan 2016

2026

Telecom Churn Analytics: Fiber Rollout vs. Mobile Data Risk

Predicts South African mobile data churn risk driven by localized neighborhood fiber rollouts.

2025

Credit Risk Analytics: Optimizing Underwriting & Mitigating Loan Default Exposure

Diagnosed drivers behind a 21.8% default rate across Nova Bank's $312M portfolio, developing an early-warning risk framework and underwriting guardrails in Power BI.

2024

FMCG Net Revenue Management & Growth Optimization

Optimized pricing, promotions, and product launches to drive profitable revenue growth using Excel.

Contact

nkosanamolefe7@gmail.com

GitHub

nkosanamolefe