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Infosys Software Engineer Interview Questions

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

50questions
~10htotal time
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1
CodingStart here. 7 questions · ~81 min
Minimum Insertions for PalindromeHard
Practice

Compute the fewest character insertions needed to transform a string into a palindrome using interval dynamic programming.

Dynamic ProgrammingAlgorithmsedge casesInfosys
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2
System Design7 questions · ~81 min
Movie Ticket Booking SystemHard
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Design PVR seat booking with transactional inventory, atomic holds, payment confirmation, and safe failure recovery.

booking logicdistributed systemsfailure modesInfosys
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3
Execution7 questions · ~81 min
Resolve Lambda/CloudWatch ErrorHard
Recently asked

Explain a structured process for diagnosing and resolving AWS Lambda errors reported through Amazon CloudWatch.

cloud serviceserror statesalertingInfosys
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4
Security & Infrastructure4 questions · ~46 min
Bearer Token VerificationHard
Recently asked

Explain how a backend validates Bearer tokens, including signature, claims, key rotation, revocation, and authorization.

authenticationjwtapi securityInfosys
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5
SQL & Data Manipulation7 questions · ~81 min
Key Constraints in SQLEasy
Practice

Use PostgreSQL metadata to distinguish a primary key constraint from a unique constraint.

data validationdata integritydatabase conceptsInfosys
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6
Technical Fundamentals7 questions · ~81 min
Explain the internal mechanics of a Map in JavaHard
Recently asked

Explains how HashMap uses hashing, buckets, collision handling, resizing, and equals/hashCode to store and retrieve entries.

javaJVM InternalsData StructuresInfosys
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7
More topics11 questions · ~127 min
Projects, Cronjobs, and Data ModellingMedium
Recently asked

Assesses your practical experience with scheduling jobs and designing data models.

Infosys
Previous Projects and .NET ArchitectureMedium
Recently asked

Evaluates your experience explaining architecture and technical decisions.

projectsInfosys
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