Senior Data Scientist - Banking AI & Customer Growth

Praesignis (Pty) Ltd; Gauteng; On-site; ZAR 900,000 - 1,500,000; Full time

Job summary

Praesignis (Pty) Ltd in the banking sector seeks a Senior Data Scientist to design, develop and optimise machine learning, AI and decisioning solutions for Personal and Private Banking and Digital channels.

You will partner with PPB, Digital, Product and Risk teams, build production-ready models on Databricks using MLflow, and mentor junior data scientists to raise modelling standards across the business.

Qualifications

• Degree in a quantitative field (e.g., CS, Math, Stats)
• Masters or PhD preferred for advanced modelling
• Experience with large datasets and governance practices

Responsibilities

• Identify high-value analytical opportunities with PPB, Digital, Product and Risk teams
• Design, train and optimise ML models using Databricks MLflow
• Develop customer propensity, next best action, and retention models
• Build reusable feature pipelines and feature governance
• Produce model documentation and governance artefacts
• Mentor junior Data Scientists and contribute to standards

Skills

Databricks notebooks

Databricks feature store

Python

SQL

Machine learning

Statistical modelling

Generative AI

Data visualization

Stakeholder management

Experimentation

Education

Masters in quantitative field

Doctorate (advantage)

Tools

Databricks

MLflow

Feature Store

Job description

Praesignis (Pty) Ltd in the banking sector seeks a Senior Data Scientist to design, develop and optimise machine learning, AI and decisioning solutions for Personal and Private Banking and Digital channels.

You will partner with PPB, Digital, Product and Risk teams, build production-ready models on Databricks using MLflow, and mentor junior data scientists to raise modelling standards across the business.