Infosys Data Engineer Interview Questions
The questions to prepare for a Infosys Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Explain how to build and operate an incremental daily batch load with safe reruns, backfills, and data quality checks.
InfosysApproach for maintaining high quality data across ML pipelines, from ingestion through feature generation and model consumption.
InfosysApproach for building automated pipeline test suites across functional, integration, and regression coverage.
InfosysExplain OLTP vs OLAP designs, including schema shape, workload patterns, and when each is appropriate in a data platform.
InfosysTests SQL window function proficiency for common analytics patterns.
InfosysTests query optimization techniques and performance troubleshooting for complex SQL.
InfosysFind the second highest salary in each department without using aggregate functions.
Credit Genie
Devoteam
Cisco Restaurant + BarFind the second-highest distinct transaction amount using a subquery in PostgreSQL without LIMIT.
Capgemini FSSBU
Freecharge
NPCIAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreReverse a string in Python using character traversal and return the reversed result.
InfosysFind the first non-repeating character in a string using frequency counting and a second pass in O(n) time.
InfosysSign up to see every question
Create a free account to unlock this list and practice real interview questions.