Hybrid Principal Data Scientist – Big Data Analytics

Placements24; Sandton; Hybrid; ZAR 1,800,000 - 2,500,000; Full time

Benefits offered by this job

Hybrid work model

Professional development opportunities

Job summary

Placements24 is seeking a Principal Data Scientist in Sandton, Gauteng, to lead big data analytics initiatives. The role combines hybrid work with in-office collaboration, driving complex data science projects and mentoring a team of analysts.

You will architect advanced models, work with Spark and other big data tools, and translate insights into strategic actions for senior leadership. A PhD or Master’s and 7+ years of experience are expected.

Qualifications

• PhD or Master’s degree in Data Science, Statistics, Computer Science, Mathematics, or a related quantitative field.
• Minimum of 7 years of professional experience in data science with a focus on big data analytics and advanced modeling.
• Proficiency in Python or R and ML libraries (e.g., Scikit-learn, TensorFlow, PyTorch).
• Deep knowledge of big data platforms and distributed computing (e.g., Spark, Hive, Pig).
• Strong SQL skills and database management experience.
• Proven ability to lead projects and mentor team members.
• Experience in hybrid work environments balancing remote and in-office work.
• Prior experience in Sandton, Gauteng is advantageous.

Responsibilities

• Lead design and execution of complex data science projects from conception to deployment.
• Develop and implement advanced statistical models and ML algorithms for predictive analytics.
• Work with large datasets using big data technologies (Spark, Hadoop ecosystem).
• Extract, clean, and transform data ensuring data quality and integrity.
• Create data visualizations and dashboards for executives and cross-functional teams.
• Mentor and guide junior data scientists and analysts.
• Collaborate with engineering to build robust data pipelines and scalable solutions.
• Stay updated on advances in data science, AI, and big data tech.
• Identify opportunities to leverage data for business value.
• Present findings and strategic recommendations clearly.

Skills

Python

R

ML libraries

Big data

Spark

SQL

Leadership

Mentoring

Education

PhD or Master’s in Data Science/Statistics/CS/Math

Tools

Spark

Hive

Pig

TensorFlow

PyTorch

Scikit-learn

Job description

Placements24 is seeking a Principal Data Scientist in Sandton, Gauteng, to lead big data analytics initiatives. The role combines hybrid work with in-office collaboration, driving complex data science projects and mentoring a team of analysts.

You will architect advanced models, work with Spark and other big data tools, and translate insights into strategic actions for senior leadership. A PhD or Master’s and 7+ years of experience are expected.