Data Warehouse Engineer

Johannesburg, Gauteng, South Africa

Job Description

:
About our client:
Our client offers financial service solutions helping their clients achieve their dreams. With an emphasis on culture fit, they boast a dedicated team of over 600 employees, many with over a decade of tenure. They have built their culture on a feeling of togetherness, trust and respect and are always looking to support employees' continuous learning. Using Agile, they provide diverse services with a focus on research, innovation and improvement.
What you will be doing:

  • Design, implement, and maintain scalable data warehouse architectures (Star/Snowflake) and optimize ETL/ELT pipelines for data quality.
  • Write and tune complex SQL (T-SQL/ANSI) and use Python for data manipulation and advanced analytics.
  • Own the full SDLC: requirements, design, testing, deployment, and solution estimation.
  • Collaborate with stakeholders to translate business data needs into technical structures.
  • Identify and resolve performance bottlenecks through normalisation, indexing, and query optimization.
  • Develop and maintain dashboards/reports using tools like Power BI or Yellowfin for data-led decision-making.
  • Create and maintain high-quality technical documentation (data flow diagrams, specifications, metadata).
  • Actively participate in the Agile/Scrum framework and sprint ceremonies.
  • Research and evaluate emerging data technologies to continuously improve the data warehouse.
What our client is looking for:
  • A relevant tertiary qualification would be beneficial (Computer Science, IT, Data Science, etc.)
  • Strong knowledge of analytical & dimensional data warehouse modelling, design, architecture, data structures, and fundamental design principles.
  • Experience in developing and modifying ETL processes (Extract, Transform, Load) using various data sources, and understanding concepts like data normalisation and performance tuning.
  • Proficiency in relational databases (SQL Server, PostgreSQL), SQL (TSQL/ANSI), and programming languages like Python.
  • Capability in the full Software Development Life Cycle, including solution estimation, requirements gathering, analysis (modifying data structures to meet client needs), technical design, unit testing, debugging, and documentation.
  • Ability to consult with clients to gather requirements, analyse business needs, propose technical alternatives, and provide necessary documentation (e.g., technical specifications, data flow diagrams).
  • Understanding of Big Data Visualization Tools and specific industry BI Visualisation tools (e.g., Yellowfin or Power BI).
  • Essential skills include communication (verbal & written, internal & external), problem-solving, and being a team player.
Job ID:
  • J107080
For a more comprehensive list of opportunities that we have on offer, do visit our website -

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Job Detail

  • Job Id
    JD1632197
  • Industry
    Not mentioned
  • Total Positions
    1
  • Job Type:
    Full Time
  • Salary:
    Not mentioned
  • Employment Status
    Permanent
  • Job Location
    Johannesburg, Gauteng, South Africa
  • Education
    Not mentioned