Lead Model Validation Analyst (Johannesburg)

Are you a data science powerhouse ready to lead, challenge, and innovate in a fast-growing digital bank? We’re on the lookout for a Lead Model Validation Analyst to join our Model Risk team in beautiful Stellenbosch. If you thrive on building and validating advanced models while mentoring the next generation of data talent, this is your stage!

We are South Africa’s leading digital retail bank, obsessed with using technology and analytics to make banking simple, smart, and transparent. Innovation, curiosity, and collaboration drive everything we do.

What you’ll do:

As our Lead Model Validation Analyst, you’ll:

• Validate, challenge, and review complex machine learning and statistical models
• Take ownership of end-to-end ML projects (from design to delivery)
• Mentor and guide junior analysts, spotting skills gaps and supporting growth
• Present and defend findings to model developers and senior management
• Collaborate across technical and business teams to ensure robust, reliable models

What we’re looking for:

• Education: Honours degree in Mathematics, Statistics, or Data Science
• Experience: 6+ years in model development, with direct model validation or review experience
• Technical expertise:

o    Tree-based methods, neural networks, clustering, anomaly detection

o    Advanced statistical or machine learning techniques

o    Cloud platforms (AWS preferred) and exposure to emerging tech like large language models is a bonus

• Strong skills in data mining, predictive modelling, and end-to-end project delivery
• Excellent communication and stakeholder management

Why join us:

• Competitive CTC: R1.4 million per annum, negotiable based on experience
• Permanent role based in Stellenbosch / Johannesburg /
• A chance to lead, innovate, and make a real impact in a collaborative, forward-thinking team