Senior Data Warehouse Developer

20 hours ago

Centurion, Gauteng, South Africa Psybergate Full time R400 000 - R700 000 per year
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.

What you will be doing:
  • Design, develop, and implement scalable data warehouse solutions.
  • Develop, maintain, and optimize ETL/ELT processes for efficient data extraction, transformation, and loading.
  • Build and enhance Power BI solutions from high-level technical and business requirements.
  • Perform quality assurance checks and ensure data accuracy and integrity.
  • Configure real-time data replication using tools such as Stelo SQDR.
  • Provide operational support, troubleshoot errors, and resolve data queries.
  • Work with technical stakeholders to identify data sources, understand metadata, and define solutions.
  • Promote data governance principles, data quality standards, and best practices.
  • Convert legacy Excel reports into Power BI dashboards.
  • Design professional reports, dashboards, and visualisations.
  • Test, debug, and reconcile data against source systems.
  • Communicate progress and present insights in easily understandable formats.
  • Identify opportunities for improvement and provide analytical observations.
  • Collaborate with business analysts, data scientists, and other stakeholders on data requirements.
  • Monitor and optimise data warehouse performance.
  • Implement data governance, security, and compliance standards.
  • Provide mentorship and guidance to junior team members.
What we are looking for:
  • 5+ years' experience as a Data Warehouse Developer or related role.
  • 3-year degree in Mathematics, Economics, Computer Science, Information Management, or Statistics.
  • Strong SQL skills with experience in relational and non-relational databases.
  • Experience with ETL/ELT tools (SSIS, Data Factory, Informatica, Talend, etc.).
  • Solid understanding of data warehousing methodologies (Kimball, Inmon).
  • Experience with data modelling (dimensional modelling, star and snowflake schemas).
  • Experience with Power BI or similar visualisation tools.
  • Familiarity with cloud data platforms (Azure Synapse, AWS Redshift, BigQuery) is advantageous.
  • Experience working with SQL Server 2022 and MS T-SQL.
  • Experience with data extraction, data analysis, data reconciliation, and data visualisation.
  • Exposure to data replication tools (Stelo SQDR, Qlik Replicate, etc.).
  • Knowledge of the software development lifecycle.
  • Strong communication, analytical thinking, report writing, problem-solving, and time-management skills.
Please note that if you do not hear from us within 3 weeks, consider your application unsuccessful.

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