Tourism/Hospitality - Tourism/Hospitality Management Johannesburg North FULL TIME Job Summary You will play a key role within a specialist quantitative function responsible for the independent validation and oversight of machine learning and data science models used across the organisation. These models support critical decision‑making in areas such as credit risk, fraud, AML, and customer behaviour.   The role combines deep technical modelling work with leadership responsibilities, including mentoring junior analysts and partnering closely with Risk, Technology, and Business teams to ensure models are robust, scalable, and production‑ready. Key Responsibilities: * Lead independent validation of machine learning models, including: + Credit risk models + Propensity and behavioural models + Financial crime models (fraud and AML) * Apply advanced machine learning techniques such as: + Supervised learning (Random Forest, XGBoost, CatBoost, Neural Networks) + Unsupervised learning (clustering, isolation forests, anomaly detection) * Manage model risk across the full model lifecycle, including: + Feature engineering and data preparation + Model training, evaluation, and selection + Deployment readiness and ongoing monitoring * Build, assess, and review models in Python based environments * Provide technical leadership and mentorship to analysts and junior data scientists * Partner with Risk, Technology, and Business stakeholders on model oversight * Ensure adherence to governance, performance, and scalability standards Job Experience and Skills Required: Education: * Honours or Master’s degree in Mathematics, Statistics, Computer Science, Actuarial Science, or a related quantitative field Experience: * 6–8+ years’ experience in data science, machine learning, or quantitative analytics * Hands on leadership experience delivering models end to end * Experience in credit risk, propensity modelling, and/or financial crime * Exposure to independent model validation or strong peer review * Experience in regulated environments Skills: * Machine learning techniques: XGBoost, CatBoost, Random Forest, Neural Networks * Clustering and anomaly detection * Advanced Python and solid SQL skills * Strong understanding of the full model lifecycle * Ability to work across technical and business stakeholders For more exciting Actuarial and Analytics vacancies, please visit: Network Recruitment International – Finance Jobs   I also specialise in recruiting in the following: * Actuarial: Life, Short-Term, Health, Pensions, and Quantitative * Data & Analytics: Data Scientists, Data Analysts (Python, R, SQL, Machine Learning) * Risk: Credit Risk, Market Risk, Model Risk, and Operational Risk Analysts * Pricing: Specialists in Insurance and Financial Products * AI & Machine Learning: ML Ops, NLP, Predictive Modelling Data Scientists * Quantitative: Experts across Banking, Insurance, and FinTech If you have not had any response in two weeks, please consider the vacancy application unsuccessful. Your profile will be kept on our database for any other suitable roles / positions. For more information, contact: Zahrah Gani Specialist Recruitment Consultant ? Connect with me on LinkedIn Network Finance Recruiter