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Senior Quantitative Analyst | Machine Learning & Model Validation
Network Finance
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randburg, South-Africa
Location
randburg
Posted
June 04, 2026
Commute
Local Area
Local Opportunity Near You!
This job is in your area. Enjoy a short commute and work close to home.
Job Description
You will operate in a highly collaborative environment where analytics is deeply embedded into decision-making and where models are expected to be robust, scalable, and production-ready.
What Youβll Be Doing:
- Independently validate machine learning models across:
- Credit risk modelling
- Customer propensity and behavioural modelling
- Fraud detection and AML (financial crime) models
- Apply advanced machine learning techniques, including:
- Supervised learning (XGBoost, CatBoost, Random Forest, Neural Networks)
- Unsupervised learning (clustering, anomaly detection, isolation forests)
- Manage the full model lifecycle:
- Feature engineering and data preparation
- Model training, evaluation, and selection
- Deployment support and ongoing performance monitoring
- Build, review, and challenge models in Python-based environments us...