Safaricom Data Engineer Interview Questions
The questions to prepare for a Safaricom Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Explain which data structures work best for large datasets based on access patterns, memory use, and update costs.
SafaricomTests your understanding of Python’s practical use in building and operating data workflows.
SafaricomApproach for building privacy controls, lineage, and auditability into data pipelines that handle personal data.
SafaricomDiscuss how you use APIs in data pipelines, including ingestion patterns, validation, and operational monitoring.
SafaricomApproach for protecting sensitive patient data while maintaining high data quality across an analytics pipeline.
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Explain normalization, why it improves data integrity, and when denormalization is a practical performance tradeoff.
SafaricomTests your understanding of SQL’s importance in querying, transforming, and validating data.
SafaricomTests your SQL performance tuning skills, including indexing, query plans, and execution strategies.
SafaricomUse GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.
Housecall Pro
Equifax
XYZCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin Moore