Junior Data Engineer

9 hours ago


Johannesburg, Gauteng, South Africa Airvantage (Pty) Ltd Full time R600 000 - R1 800 000 per year

Location:
Johannesburg or Cape Town (Hybrid) |
Type:
Full-time |
Level:
Intermediate (open to strong Junior–Mid)

What you'll work on

Build and maintain robust pipelines and data models that support lending/handset rental products across multiple countries—serving Data Science, Finance microservices, and operational analytics.

Responsibilities

  • Build/maintain ingestion and transformation pipelines (CDRs, recharge, payments, partner feeds).
  • Optimise MySQL data models for performance and reliability (high-volume workloads).
  • Deliver curated datasets/feature tables with Data Science.
  • Improve data quality: validation, anomaly detection, backfills, and observability.
  • Build integrations between operational services and data layers.
  • Contribute to schema design, pipeline modernisation, and platform improvements.
  • Support MySQL migration and performance initiatives.

Requirements

  • Strong SQL + relational modelling (MySQL preferred).
  • Python for data engineering (batch jobs, validation, tooling).
  • Strong operational reliability mindset.
  • Detail oriented
  • Degree in Data Science, Actuarial Science, Computer Science, Statistics or Engineering

Note

: A solid qualification from a
reputable tertiary institution

is preferred over experience.



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