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Johannesburg North: Senior Data Scientist – Machine Learning posted by Network Finance

Johannesburg North: Senior Data Scientist – Machine Learning posted by Network Finance

Company
Network Finance

Location
Gauteng

Job Type
Clearing and Forwarding Management

Job Description

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 strategy, 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, 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.
View Job  Centurion: Junior PHP Developer posted by Network Finance

Preferred:

  • Familiarity with cloud platforms (e.g. Azure, 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.

*****@*****.co.za . 
For more finance jobs, please visit www.********.co.za              
 
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 (***)***-****
Specialist Recruitment Consultant: Actuarial and Analytical

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