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Big Data Engineer

A 1L Realization (Pty) Ltd

johannesburg, johannesburg, South-Africa Full-time July 11, 2026

Found Description

Key Responsibilities

  • Design, develop and maintain high-volume data ingestion, transformation and processing pipelines using big data technologies.
  • Build scalable audience builder pipelines, customer segmentation layers and ADR-ready datasets to support analytics and monetisation use cases.
  • Develop batch and streaming data pipelines for processing data from telecommunications networks, CRM systems, digital platforms and external data sources.
  • Apply data quality controls, validation, cleansing and enrichment logic to ensure trusted, production-ready datasets.
  • Optimise pipeline performance, scalability and reliability to support high-volume data processing.
  • Collaborate with Solution Architects, Data Scientists, Product Owners and Data Analysts to deliver data products and machine learning solutions.
  • Integrate data from multiple enterprise systems using ETL/ELT frameworks, APIs and event-driven technologies.
  • Su...

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