Senior Data Scientist - Machine Learning

Recruiter:

Network Recruitment

Job Ref:

NFP015930/HN

Date posted:

Wednesday, July 30, 2025

Location:

Johannesburg, South Africa

SUMMARY:
Senior Data Scientist

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.

POSITION INFO:

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.

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.

.
For more finance jobs, please visit

Similar jobs you might be interested in:

Senior Data Scientist - Machine Learning
Location: Johannesburg
Salary:
senior data scientistAre 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 acros...
1 day ago

Senior Data Analyst
Location: Johannesburg
Salary: Annually
The senior data Analyst will be responsible for interpreting business requirements, maintaining and enhancing existing reports, ensuring data quality and delivering actionable insights through data models and dashboards.
1 day ago

Senior Data Architect
Location: Pretoria
Salary: R1 229 772-R1 537 212 depending on Qual.and Exp.
Pretoria
1 day ago

Senior Data Engineer
Location: Johannesburg
Salary: Annually
The senior data Operations Engineer will be responsible for modernising, automating and improving existing SQL-based and data warehouse processes.
2 days ago

Senior Business IntelligenceAnalyst (Data Modeller)
Location: Pretoria South
Salary: Market related
Role Purpose: The senior Business Intelligence (BI) Analyst plays a crucial role in translating bus
6 days ago

Senior Data Warehouse Developer
Location: Centurion
Salary: Monthly
Psybergate is an IT company that builds bespoke software solutions and provides highly skilled resources to its clients.We are looking for a senior data Warehouse Developer to join our financial services client based in Centurion.
7 days ago

Senior Internal IT Auditor/ Data Analyst
Location: Johannesburg
Salary: R75 000kpm
To independently evaluate and improve an organization''s risk management, governance, and internal control processes. They provide assurance to senior management and stakeholders that these processes are functioning effectively, and that the organization is compliant with relevant policies, regulations, and laws.
8 days ago

Senior Data Devolper
Location: Johannesburg
Salary: R70k - 80k per month
Developer with relevant Experience
21 days ago

Intermediate or Senior AWS Data Engineer – Johannesburg – up to R900k per annum
Location: Johannesburg
Salary: 900 000
Intermediate or senior AWS data Engineer – Johannesburg – up to R900k per annum
23 days ago

Senior Data Engineer
Location: Johannesburg
Salary: market related Monthly
Job DescriptionSummaryOur client is seeking a highly experienced senior data Engineer to lead the design, development, and optimization of data pipelines, APIs, and data platforms. This role will focus on ETL/ELT processes using Matillion and Snowflake, API development, and integration with machine learning workflows and databricks. The ideal candidate will have a strong background in data enginee...
27 days ago