Dataford
Dataford
Top 25
Prep plan
Updated weekly · Last refresh Oct 17

Tech Mahindra Data Engineer Interview Questions

The questions to prepare for a Tech Mahindra Data Engineer interview. Questions from real interview reports rank first. Updated daily.

25questions
~4htotal time
Track your progressSign up free to work through all 25 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 7 questions · ~66 min
Python Anagram and KwargsEasy
Practice

Check whether two strings are anagrams with optional case and whitespace handling using frequency counts.

CodingsqlpythonTech Mahindra
Spark Window Functions DemoMedium

Tests your ability to implement window-based analytics in Spark using PySpark.

Dynamic ProgrammingArraysStringsTech Mahindra
More Coding questions with a free account
2
SQL & Data Manipulation5 questions + 2 drills · ~67 min
Running Total With Window FunctionsEasy
Practice

Calculate each user's running order total over time using a window function.

Window FunctionsDate FunctionsRunning TotalsTech Mahindra
Understanding Common Table Expressions (CTEs)Medium

Explain what CTEs are and their advantages in SQL queries.

CTEsTech Mahindra
PySpark RDD and SQL CommandsMedium

Assesses your knowledge of RDD-based processing and practical SQL data manipulation.

pysparksqlTech Mahindra
Second Highest Trader SalaryEasy
Practice
Recently asked
Practice drill

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingeClinicalWorksNNeenOpal CanadaInformatica
Second Highest Salary SQLEasy
Practice
Practice drill

Find every active UST Global employee earning the second-highest distinct salary using a CTE, DENSE_RANK, and a LEFT JOIN.

sqlAggregationsUST GlobalHexaware TechnologiesTech Mahindra
More SQL & Data Manipulation questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Pipelines9 questions · ~85 min
Cloud Pipeline Data SecurityMedium

Key security considerations for a cloud data pipeline, from ingestion through storage, orchestration, and monitoring.

InfrastructureGovernanceETLTech Mahindra
Handling Schema Changes in CSVMedium

Tests your approach to schema evolution and resilient ingestion in data pipelines.

Data QualityTech Mahindra
Spark Architecture Deep DiveHard

Evaluates your understanding of Spark internals and how they impact performance and reliability.

sparkarchitectureTech Mahindra
More Pipelines questions with a free account
4
Behavioral & Leadership4 questions · ~38 min
More Behavioral & Leadership questions with a free account
The finish line: interview-readyComplete all 25 questions plus 2 hands-on drills to finish this plan.