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Updated weekly · Last refresh Oct 17

T Mobile Us QA Engineer Interview Questions

The questions to prepare for a T Mobile Us QA Engineer interview. Questions from real interview reports rank first. Updated daily.

3questions
~1htotal time
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1
SQL & Data ManipulationStart here. 1 question + 3 drills · ~39 min
Using SQL and PythonMedium

Evaluates data manipulation skills and the ability to apply SQL and Python to real QA or data workflows.

project experiencesqlpythonT Mobile Us
SQL Proficiency and PracticeMedium
Practice
Practice drill

Demonstrate SQL proficiency by summarizing completed consultant assignments, project counts, workload totals, and workload bands.

JoinsData Manipulationtechnical challengeSailPoint TechnologiesSEIDORT Mobile Us
Deduplicate Large Transaction TableMedium
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Recently asked
Practice drill

Identify and delete duplicate transactional records while preserving the earliest record without using temporary tables.

data cleaninglarge datasetssqlT Mobile Us
Ensuring Dashboard AccuracyMedium
Practice
Practice drill

Validate T-Mobile US dashboard metrics against independently aggregated source events and flag missing or mismatched reporting data.

Joinsdata validationAggregationsT Mobile Us
2
Coding1 question · ~9 min
Scripting in Any LanguageMedium

Assesses adaptability and practical scripting skills for QA automation tasks.

ProgrammingscriptingT Mobile Us

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3
Behavioral & Leadership1 question · ~9 min
Why You Over Other CandidatesEasy

Tests whether you can differentiate yourself with evidence, self-awareness, and a concrete record of measurable sales impact.

impactqualificationspersuasionT Mobile Us
The finish line: interview-readyComplete all 3 questions plus 3 hands-on drills to finish this plan.