Top 15
Prep plan
Updated weekly · Last refresh Sep 21
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Retell AI Software Engineer Interview Questions

The questions to prepare for a Retell AI Software Engineer interview. Questions from real interview reports rank first. Updated daily.

15questions
~4htotal time
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1
CodingStart here. 7 questions · ~117 min
Encode a Run-Length Style StringEasy
Practice

Encode each consecutive character run as its frequency followed by the character.

CodingAlgorithmsRRetell AI
Read File Line by LineMedium
Practice

Parse robots-style text, exclude onebot/* user-agent groups, then deduplicate and sort Disallow paths.

deduplicationCodingAlgorithmsRRetell AI
RPN-like Calculator VMHard
Practice
Recently asked

Parse tokens and evaluate arithmetic and stack commands using a stack, while distinguishing negative numbers from the subtraction operator.

Data StructuresAlgorithmsedge casesRRetell AI
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2
System Design3 questions · ~50 min
Design an In-Memory SQL DatabaseHard
Recently asked

Design a practical in-memory SQL database with parsing, execution, indexing, transactions, and performance considerations.

latencydatabase accessdata managementRRetell AI
REST API with Retell AI FeaturesHard
Recently asked

Design a production REST API that integrates Retell AI call, agent, and conversation capabilities.

agent workflowsbackend integrationsystem integrationRRetell AI
In-Memory Data Retrieval StructureHard
Recently asked

Design an in-memory data structure that supports efficient insertion, lookup, update, and deletion.

low latencydatabase accessData StructuresRRetell AI
3
Behavioral & Leadership4 questions · ~67 min
Work Schedule Fit at Retell AIEasy
Recently asked

Tests availability, adaptability, and judgment when evaluating a six-day onsite and remote work schedule.

adaptabilityavailabilitybehavioralRRetell AI
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4
More topics1 question · ~17 min
Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 15 questions plus 2 hands-on drills to finish this plan.