Senior Data Scientist – Machine Learning – Network2

[Big Data, Machine Learning, General Analytics]
Gauteng
July 30, 2025
Full Time
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Job Description

Are you passionate about leveraging data to solve complex problems and drive innovation? A leading organisation is seeking a highly skilled Data Scientist to join their Data Science and Analytics team. This is an exciting opportunity to develop cutting-edge predictive and prescriptive models that will inform strategic decision-making and deliver measurable business value across key areas.
Senior Data Scientist

About the Role:
You’ll work across the full data science lifecycle—from understanding business needs and refining problem statements to data preparation, model development, testing, deployment, and performance monitoring. Your work will support data-led strategies, operational efficiency, and intelligent decision-making through automation and advanced analytics.

Key Responsibilities:

  • Develop and deploy predictive modelling and machine learning solutions.
  • Collaborate with stakeholders to define business challenges and identify analytical opportunities.
  • Conduct data cleaning, transformation, feature engineering, and rigorous hypothesis testing.
  • Work with engineering teams to build data pipelines and access large-scale structured and unstructured data.
  • Translate data science solutions into practical business applications.
  • Create impactful visualisations and reports to communicate insights to both technical and non-technical stakeholders.
  • Monitor and refine models to ensure performance and business relevance over time.


Requirements:

  • Minimum:
    • Honours, Master’s, or PhD in a quantitative discipline (e.g. Actuarial Science, Mathematics, Computer Science, Engineering, and Statistics).
    • 5–6 years of hands-on experience in data science and analytics roles.
    • Strong Python and SQL proficiency, including libraries such as NumPy, Pandas, SciPy, Matplotlib.
    • Experience working with Jupyter Notebooks and in Agile development environments.
    • Proven ability to operationalise machine learning models at scale.
  • Preferred:
    • Familiarity with cloud platforms (e.g. Azure and AWS), Spark, and big data tools.
    • Professional certifications in data science and analytics technologies.
    • Experience with data visualisation tools such as Power BI, Tableau, or Kibana.
  • Key Competencies:
    • Advanced analytical and problem-solving skills.
    • Strong communication skills, with the ability to explain technical concepts to diverse audiences.
    • Business acumen and the ability to align data solutions with strategic objectives.
    • Initiative, adaptability, and a strong sense of accountability.
    • Ability to work independently as well as collaboratively within cross-functional teams.


Ready to use data to make an impact?

Join a dynamic, forward-thinking environment where your expertise will directly contribute to innovation and strategic growth. Apply now and be part of the data-driven future.

Note: This position is open to candidates with strong technical capabilities and a proven track record in solving real-world problems with data.

For more finance jobs, please visit https://www.networkrecruitmentinternational.com              
 
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.
We also invite you to contact us to discuss your next career move in finance!
 
For more information contact:
Heidi Nieuwoudt on 012 348 4940
[email protected]
Specialist Recruitment Consultant: Actuarial and Analytical