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T Mobile Us Software Engineer Interview Questions

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

50questions
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1
CodingStart here. 5 questions · ~44 min
Merge Overlapping IntervalsEasy
Practice
Recently asked

Merge overlapping intervals in a list of intervals.

ArraysSearchingSortingT Mobile Us
Reverse a Singly Linked ListEasy
Practice
Recently asked

Problem Given the head of a singly linked list, reverse the list, and return the new head node. The linked list is defined as follows: python class ListNo...

RecursionStackDynamic ProgrammingT Mobile Us
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2
Execution7 questions · ~61 min
Secure an API GatewayHard
Recently asked

Assesses your security design for authentication, authorization, and common API threats.

rest apisCloud Security RisksSecurityT Mobile Us
Handling Projects Behind ScheduleEasy
Recently asked

Assesses your execution discipline and ability to recover timelines under pressure.

Launch PlanningTrade-offsRisk AssessmentT Mobile Us
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3
Behavioral & Leadership34 questions · ~298 min
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4
More topics4 questions · ~35 min
Describe System Design BasicsMedium
Recently asked

Assesses your foundational understanding of designing scalable software systems.

system designbasicsT Mobile Us
Securing APIs with JWT/OAuthMedium
Recently asked

Tests API security knowledge, including JWT/OAuth usage and common web vulnerability defenses.

jwtapi securityT Mobile Us
SQL for Large BI ExtractsMedium
Recently asked

Tests your SQL and data manipulation skills for extracting and preparing large datasets for BI.

databaseT Mobile Us
Designing a Project to Consume LLMsHard
Recently asked

Assesses system design thinking for integrating LLMs into production services.

T Mobile Us

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
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
Practice
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
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.