Dataford
Top 2
Prep plan
Updated weekly · Last refresh Nov 11
T

TELUS Data Engineer Interview Questions

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

2questions
~1htotal time
Track your progressSign up free to work through all 2 questions and resume where you left off.
Start practicing free →
1
PipelinesStart here. 1 question · ~8 min
PySpark Aggregation at ScaleHard

Write a fault-tolerant PySpark batch job that aggregates distributed data efficiently across worker nodes.

Data Qualitypysparkdistributed computingTTELUS
2
SQL & Data Manipulation1 question + 3 drills · ~38 min
Handling NULLs in JoinsMedium

Explain how NULL values affect JOIN results, when LEFT JOIN is safer, and how to handle NULLs correctly in PostgreSQL.

sqldata integritynull valuesTTELUS
Distributed Data Quality and IntegrityHard
Practice
Practice drill

Reconcile customer records across distributed sources and identify missing, duplicate, conflicting, and incomplete data.

Data Qualitydistributed systemsdistributed databasesCharles Schwab
SQL Duplicate Record DetectionEasy
Practice
Practice drill

Find duplicate American Institutes for Research assessment submissions using a CTE, GROUP BY, HAVING, and joins.

deduplicationsqldata integrityAmerican Institutes for ResearchPublix Super MarketsMacy's
Fourth Highest Salary in SQLMedium
Practice
Practice drill

Identify every employee earning the fourth-highest distinct non-NULL salary using PostgreSQL ranking.

Data Manipulationsqldatabase queryingBlackRockExpedia GroupMSCI

Sign up to see every question

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

Get my prep plan
The finish line: interview-readyComplete all 2 questions plus 3 hands-on drills to finish this plan.