Data Scientist III

FirstRand group; Johannesburg; On-site; ZAR 400 000 - 500 000; Full time

Job summary

A leading financial services provider in Johannesburg is seeking a highly skilled Data Scientist III. The ideal candidate will have 6-8 years of experience, advanced proficiency in Python, and proven experience with machine learning models deployed in Microsoft Azure. This role involves building and implementing innovative models and collaborating across teams to optimize customer experience and operational efficiency. A bachelor's degree in a related field is required, and applicants are encouraged to apply before the closing date of 08/11/25.

Qualifications

• 6–8 years’ experience in a Data Science or similar role.
• Proven experience deploying solutions in Microsoft Azure.
• Hands-on experience with Generative AI frameworks and AI agent development.

Responsibilities

• Plan, build optimised analytical methodologies and advanced mathematical models.
• Design and deploy machine learning models using Python.
• Collaborate with teams to integrate AI solutions.

Skills

Python

Generative AI

Machine Learning

Natural Language Processing

SQL

Azure Functions

Data Analysis

Education

Bachelor's degree in Science, Mathematics or related field

Honours degree

Tools

TensorFlow

PyTorch

Pandas

NumPy

Power BI

Power Automate

Job description

Description

To plan, build, optimise and implement innovative quantitative analytical methodologies, procedures, products and advanced mathematical models that provide analytical support and interpret insights, using advanced analytics technologies, to address business opportunities and problems and implement business strategy.

Hello, future Data Scientist III

We are seeking a highly skilled and innovative Data Scientist III to join our team. The ideal candidate will be proficient in Python and experienced in building and deploying machine learning models, Generative AI applications, and AI agents. This role requires a blend of deep technical expertise, practical deployment experience, and a passion for automation and intelligent systems.

Are you someone who:

• Has designed, tested, and deployed end-to-end machine learning and Generative AI models using Python and Azure Functions.
• Built classification models to optimise customer experience and interactions by enhancing resolution speed and customer satisfaction.
• Able to apply Natural Language Processing (NLP) to automate quality assurance processes and assess whether queries were resolved effectively.
• Evaluate model performance using appropriate metrics and continuously refining algorithms for accuracy and relevance.
• Collaborate with cross-functional teams to integrate AI solutions into business processes and improve operational efficiency.
• Preparing and analyzing data to support model development and business insights.
• Creating dashboards, reports, and presentations to communicate findings to stakeholders.
• Ensuring compliance with privacy regulations and internal governance frameworks.
• Mentoring junior analysts and contributing to model governance and ethical data practices.
• Build models that analyse processes to recommend areas for optimisation to achieve cost savings, revenue generation or efficiency improvements for the business.
• Conduct appropriate manipulation and analysis of data to pro-actively identify and meet needs of the business for the purpose of future work and to ensure high information-quality and reliability across the business.
• Implement Machine learning mathematical algorithms and automation techniques using open-source programming languages such as SAS or Python libraries.
• Utilise advanced Predictive modelling techniques to hold insight into outcomes and future events that confront key assumptions.
• Review and support more Junior Data Scientists with processes and models.

We can be a match if you are:

• Curious & courageous – you’re driven by always wanting to know more and learn more and you’re brave enough to take action. Always being engaged.
• Obsessed with mastery – you know what it takes to become good at what you do and are constantly pushing yourself to achieve this.
• A team player – you believe in the power of teams, building and leveraging your networks.
• Emotionally intelligent – you are able to connect with people to build trust.

What we’re looking for:

• Minimum qualification: A bachelor's degree in Science, Mathematics and/or related field.
• Preferred qualification: Honours degree.
• Experience: A minimum of 6–8 years’ relevant experience in a Data science or similar role.
• Proven experience deploying solutions in Microsoft Azure, including Azure Functions in Python.
• Advanced proficiency in Python (TensorFlow, PyTorch, Pandas, NumPy).
• Hands‑on experience with Generative AI frameworks and AI agent development.
• Strong Natural Language Processing (NLP) skills for classification, sentiment analysis, and conversational AI.
• Strong level of proficiency in SQL is essential.
• Familiarity with MLOps and cloud‑native deployment strategies.
• Experience with Power Automate; Power BI is an advantage.
• Ability to build scalable data pipelines and integrate AI into business processes.

#Post

#Wesbank

#LI-AR2

Job Details

Take note that applications will not be accepted on the below date and onwards, kindly submit applications ahead of the closing date indicated below.

Closing date:

08 / 11 / 25

All appointments will be made in line with FirstRand Group’s Employment Equity plan. The Bank supports the recruitment and advancement of individuals with disabilities. In order for us to fulfill this purpose, candidates can disclose their disability information on a voluntary basis. The Bank will keep this information confidential unless we are required by law to disclose this information to other parties.