Job Description
About the Role
Network Finance is seeking a highly skilled Senior Quantitative Analyst to join our team in Johannesburg North. As a key member of our analytics team, you will operate in a collaborative environment where models are expected to be robust, scalable, and production-ready. You will take ownership of advanced model validation and quantitative risk analysis, working closely with Risk, Technology, and Business stakeholders to ensure alignment.
Key Responsibilities
- Independently validate machine learning models across credit risk modelling, customer propensity and behavioural modelling, and fraud detection and AML (financial crime) models.
- Apply advanced machine learning techniques, including supervised learning (XGBoost, CatBoost, Random Forest, Neural Networks) and unsupervised learning (clustering, anomaly detection, isolation forests).
- Manage the full model lifecycle, including 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 using large, complex datasets.
- Lead technical discussions and provide mentorship to junior analysts and data scientists.
- Collaborate closely with stakeholders to ensure models meet governance, performance, and scalability standards across the organisation.
Requirements
- 6–8+ years’ experience in quantitative analytics, data science, or machine learning.
- Strong end-to-end model development experience using Python.
- Advanced SQL skills and experience working with large datasets.
- Deep experience in techniques such as gradient boosting (XGBoost, CatBoost), neural networks, clustering, and anomaly detection.
Qualifications
- Honours or Master’s degree in Mathematics, Statistics, Computer Science, Actuarial Science, or a related quantitative field.
Salary & Benefits
Salary details are not specified.
How to Apply
Click the green “Go Apply” button below to apply directly online with the employer.
About Tourism/Hospitality Management Jobs in Gauteng
Gauteng, the economic hub of South Africa, is home to various Tourism and Hospitality Management positions that cater to a diverse range of industries. The job market in this sector typically offers a mix of opportunities for individuals looking to pursue careers in customer service, event management, and hotel operations.
Generally, salaries for Tourism and Hospitality Management roles in Gauteng tend to fall within broad ranges, often influenced by factors such as experience, company size, and industry sector. While it’s difficult to provide an exact salary range without knowing the specific circumstances, common salaries typically start at around R30 000 – R40 000 per annum for entry-level positions, increasing to R60 000 – R80 000 per annum or more for experienced professionals in larger companies.
Common skills required for Tourism and Hospitality Management roles include excellent communication and interpersonal skills, attention to detail, organisational abilities, problem-solving skills, adaptability, and the ability to work well under pressure. Additionally, proficiency in Microsoft Office applications, languages such as Afrikaans or isiZulu (where relevant), and knowledge of South African culture and history can be advantageous.
Tourism and Hospitality Management roles are commonly found across various industries, including the financial services sector, technology industry, manufacturing sector, and entertainment sector. These sectors often require Tourism and Hospitality professionals to manage events, conferences, and corporate functions, ensuring seamless guest experiences and operational efficiency.
Career progression for individuals in this field can be rewarding, with opportunities to move into senior management positions or specialise in specific areas such as event management or hotel operations. Many companies also provide training and development programs to enhance skills and knowledge, allowing professionals to advance their careers and take on new challenges.
This information provides general career guidance. Actual salaries and requirements vary by employer.
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