Dexian Signature Consultants Data Engineer Interview Questions

Preferred tools and patterns for data modeling and pipeline architecture in a modern data platform.

InfrastructureToolsData ModelingDexian Signature Consultants

Approach for handling missing data in an ML data pipeline, including validation, imputation, and safe downstream consumption.

InfrastructureETLBatch ProcessingDexian Signature Consultants

Tests your ability to choose and implement appropriate data structures for performance-critical tasks.

Hash TablesArraysSearchingDexian Signature Consultants

Tests your ability to implement data transformations and pipeline logic in production-ready code.

Hash TablesArraysStringsDexian Signature Consultants

Tests ability to design an algorithm and connect implementation choices to measurable outcomes.

Hash TablesSearchingSortingDexian Signature Consultants

Tests deep SQL and warehouse tuning skills, including execution plans, indexing, and query rewrites.

Joinsquery optimizationAggregationsDexian Signature Consultants