Top 19
Prep plan
Updated weekly · Last refresh Nov 6
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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.

19questions
~5htotal time
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1
CodingStart here. 7 questions + 1 drill · ~114 min
Read File Line by LineMedium
Practice

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

deduplicationCodingAlgorithmsRRetell AI
Scheduling System DesignMedium
Practice

Construct a maximum-size schedule of non-overlapping intervals using an end-time greedy algorithm.

ArraysData StructuresAlgorithmsRRetell AI
Implement a GitLab Commit ChainMedium
Practice

Reconstruct the root-to-head GitLab commit chain using parent links and a hash map.

Data StructuresAlgorithmsedge casesRRetell AI
Balanced Parentheses CodingEasy
Practice
Practice drill

Use a recursive CTE to determine whether each stored string has balanced parentheses, including empty and NULL inputs.

Codingnull handlingData ManipulationStripe
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2
System Design4 questions · ~60 min
REST API with Retell AI FeaturesHard

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

agent workflowsbackend integrationsystem integrationRRetell AI
In-Memory Data Retrieval StructureHard

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

low latencydatabase accessData StructuresRRetell AI
Design an In-Memory SQL DatabaseHard

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

latencydatabase accessdata managementRRetell AI
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3
Behavioral & Leadership7 questions · ~104 min
Work Schedule Fit at Retell AIEasy

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 · ~15 min
Hands-on SQL practiceWrite and run real queries in the editor. 1 drill · ~10 min
The finish line: interview-readyComplete all 19 questions plus 2 hands-on drills to finish this plan.