A high-impact opportunity has opened for a BI Developer in Johannesburg to join a client-facing environment focused on modern Microsoft data ecosystems. This role is ideal for a technical professional who thrives on the “End-to-End” process—taking raw data through complex pipelines and transforming it into high-level executive dashboards.
Position Details
- Location: Johannesburg (South African candidates only)
- Salary: Market-related (based on experience)
- Tech Environment: Microsoft Cloud-First (Fabric, Synapse, Power BI)
Requirements & Qualifications
- Education: Degree in IT, Computer Science, Mathematics, Statistics, or a related quantitative field.
- Technical Core:
- Proven experience as a BI Developer.
- Strong SQL and Python capabilities.
- Deep understanding of ETL processes and data modeling.
- Tools: Proficiency in Power BI, Qlik Sense, and the Microsoft Fabric ecosystem.
- Advantageous: Microsoft Certified: Data Analyst Associate (PL-300).
Key Responsibilities
You will be responsible for the full lifecycle of data intelligence:
- Architecture: Designing robust data models, pipelines, and warehouse structures using Synapse Data Engineering.
- Development: Building end-to-end solutions from data ingestion to final dashboard delivery.
- Visualization: Creating insightful and interactive dashboards in Power BI or Qlik Sense.
- Optimization: Ensuring BI systems are scalable and high-performing using Spark and SQL.
- Governance: Maintaining data integrity and quality across all platforms.
Potential Interview Questions
Architectural & End-to-End Logic
- “Can you walk us through a time you designed a Star Schema for a complex business requirement? Why did you choose that specific model over a Snowflake Schema?”
- Why they ask: Modeling is the foundation of this role; they need to see your architectural reasoning.
- “With the move toward Microsoft Fabric, how do you see the integration of Synapse and Power BI changing the way we handle real-time data pipelines?”
- Why they ask: This tests your knowledge of “modern Microsoft data environments” mentioned in the specs.
Technical Problem-Solving
- “If a Power BI report is loading slowly despite the underlying SQL query being optimized, what are the next three areas you would investigate?”
- Why they ask: Optimization is a key responsibility; they are looking for DAX knowledge or gateway troubleshooting skills.
- “How do you use Python or Spark within your ETL process to handle unstructured or large-scale data that SQL might struggle with?”
- Why they ask: They specifically listed Spark and Python as part of the stack.
How to Apply
If you are ready to design and build scalable BI solutions:
- Email your CV to: claudine.strydom@mspstaffing.co.za.
- Subject Line Suggestion:
Application: BI Developer – [Your Name]. - Portfolio Tip: If you have any (sanitized) examples of your data modeling or Power BI layouts, mention them in your intro!