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DCV Sabenza IT and Recruitment

Senior Data Scientist at Sabenza IT & Recruitment

DCV Sabenza IT and Recruitment

  • R1.00 - R2.00 per hour
  • Contract Senior position
  • Johannesburg
  • Posted 04 Dec 2025 by DCV Sabenza IT and Recruitment
  • Expires in 28 days
  • Job 2628904 - Ref 878000014078398
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About the position

The Senior Data Scientist will lead the design, development, and deployment of advanced analytics and machine learning solutions that drive strategic decision-making and operational efficiency. This role requires a deep understanding of data science, data engineering, and AI concepts, and will play a pivotal role in embedding intelligent automation and predictive modelling across the organisation.

Duties and responsibilities:

  •  Build and implement machine learning models using structured and unstructured data to improve forecasting accuracy and enable proactive decision-making.
  • Optimise model performance and scalability through hyperparameter tuning and algorithm selection to enhance efficiency and reduce computational costs.
  • Implement reproducible research practices by using version control, documentation, and testing to maintain model integrity and facilitate collaboration.
  •   Monitor deployed models in production using performance metrics and alerting systems to ensure reliability and timely intervention.
  • Automate repetitive data science tasks through scripting and workflow orchestration to increase productivity and reduce manual errors.
  • Maintain high data quality standards by conducting regular audits and validation checks to support trustworthy analytics.
  •  Translate complex analytical findings into clear, actionable insights for non-technical stakeholders to drive informed business strategies.
  •  Present data-driven recommendations using compelling visualisations and storytelling techniques to influence executive decision-making.
  • Collaborate with stakeholders to define key metrics and success criteria to align analytics efforts with business goals.
  • Collaborate with data engineers to streamline data ingestion and transformation processes using scalable architectures to reduce latency and improve model performance.
  • Identify and implement novel AI use cases through research and experimentation to enhance business capabilities and competitive advantage.
  • Communicate complex analytical findings through visualisations and storytelling to influence strategic decisions and operational improvements.
  • Mentor junior data scientists and analysts through code reviews, knowledge sharing, and career guidance to build team capability and foster growth.
  •  Contribute to the development of best practices, standards, and frameworks within the data science team.
  • Handles ambiguity and setbacks constructively, maintaining focus on long-term goals.
  • Implement responsible AI practices and adhere to data governance policies to maintain trust and regulatory compliance.


Role Competencies:

Machine Learning


·        Expert in designing, developing, and deploying advanced machine learning and AI models.


·        Expert in selecting appropriate algorithms, optimising model performance, and mentoring junior team members in best practices.


Data Engineering & Architecture


·        Understanding of ETL/ELT processes and data pipeline design.


·        Ability to collaborate with data engineers to ensure data quality and accessibility.


Programming & Tooling


·        Advanced proficiency in Python, R and SQL


·        Use of Jupyter, VS Code, Git, and other development tools.


·        Contribute to code reviews and promotes clean, maintainable code practices


Cloud-Native ML Tools & Platforms


·        Proficiency in deploying models using platforms like AWS SageMaker, Azure ML, or Google Cloud AI Platform.


·        Familiarity with containerisation (Docker) and orchestration (Kubernetes) for scalable ML solutions.


Data Visualisation and Storytelling:


Effectively communication of complex analytical insights through compelling visualisations and narratives

RequirementsQualification & Experience: 
  • Bachelor’s degree in Data Science, Computer Science, Statistics, Mathematics, or a related field.
  •  6–8+ years of experience in data science, with at least 2–3 years in a senior or lead role.
  • Proven experience in developing and deploying machine learning models in production environments.
  • Strong proficiency in Python, R, SQL, and ML libraries (e.g., scikit-learn, TensorFlow, PyTorch).
  • Solid understanding of data engineering principles and cloud data architectures (e.g., Azure, AWS, GCP).
  • Experience with MLOps tools (e.g., MLflow, Kubeflow, Airflow).
  • Excellent communication and stakeholder engagement skills.

Advantageous: 
  • Master’s degree in Data Science, Computer Science, Statistics, Mathematics, or related field.
  •  Experience with large language models (LLMs) and generative AI.
  • Experience in healthcare, retail, or insurance data ecosystems


BenefitsThis role follows a hybrid work model, allowing flexibility in where you work while requiring in-person presence when operational needs arise. 




Desired Skills:

  • Python
  • R
  • SQL
  • ML
  • Cloud Data Architectures
  • MLOps tools

Desired Qualification Level:

  • Degree

About The Employer:


Apply Now

DCV Sabenza IT and Recruitment

About the agency

Dedicated to the recruitment of IT professionals Sabenza iT is a South African registered business focusing on Finance, Engineering, SAP and general iT recruitment. We have over 18 years' experience in recruiting in South Africa, Australia, Europe, South America and Asia and have worked with a number of large companies offering the best service. We at Sabenza iT understands the changing market and we mold our services around each of our client's needs to offer a personal service. Sabenza iT has forged strong relationships with both Clients and Consultants by ensuring both parties get the most out of every placement. Our Head Office is based in South Africa and we have a satellite office in the UK so that we can keep in contact with expats who may consider returning to South Africa and so that we can offer our services globally for Consultants looking to go to South Africa and Consultants who are looking for opportunities abroad. We at Sabenza recognize the difference it makes to maintain good client relationships and we are keeping our client base niche and manageable in order to give the best service possible. We have gained a good reputation in the market place and have built a very large network and database of consultants that we draw from for each role. We are able to send applications within 24 hours of receiving a role profile or spec. We use one of the best Database software tools available to keep our database up to date and very fast to search. Sabenza iT does not only use job-sites, we headhunt and we use our network to find our clients the right Candidates. We have a strong Facebook presence and we have over 12,000 LinkedIn connections. For further information, please visit our website www.sabenzait.co.za or call me at any time on Tel: 0330040131.

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