Dataford
Top 46
Prep plan
Updated weekly · Last refresh Nov 11

Paytm Backend Engineer Interview Questions

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

46questions
~7htotal time
Track your progressSign up free to work through all 46 questions and resume where you left off.
Start practicing free →
1
CodingStart here. 8 questions · ~68 min
Analyze Time and Space ComplexityEasy

Explain how to derive time and space complexity for a coding solution and justify the final Big O bounds.

Hash TablesArraysSortingPaytm
Mirror Image TreesMedium

Evaluates tree traversal logic and correctness for mirror checks.

RecursionPaytm
More Coding questions with a free account
2
Technical Fundamentals8 questions · ~68 min
Backend Collections, Cache, LoggingMedium

Assesses your practical backend engineering experience across performance and observability components.

collectionscachePaytm
More Technical Fundamentals questions with a free account
3
SQL & Data Manipulation5 questions + 3 drills · ~73 min
Ensuring Data IntegrityMedium

Evaluates your practices for preventing invalid states and maintaining correct data over time.

data integrityPaytm
Top Suppliers by CategoryMedium
Practice
Recently asked
Practice drill

Use window functions to return the top three suppliers by transaction count within each product category.

Window FunctionsData ManipulationRankingPaytmTEKsystems
Common Users Between Two TablesEasy
Practice
Recently asked
Practice drill

Use CTEs and an INNER JOIN to find distinct Paytm users active in both Wallet and UPI during January 2026.

JoinssqlPaytm
Max Salary Across DepartmentsMedium
Practice
Practice drill

Find each department's maximum salary and all employees tied at that salary using aggregation and joins.

aggregationsqlInformaticaPaytm
More SQL & Data Manipulation questions with a free account
4
System Design8 questions · ~68 min
Logging and Monitoring DesignHard

Evaluates your ability to build observability for diagnosing issues across services.

monitoringdistributed systemsPaytm
More System Design questions with a free account
5
Behavioral & Leadership12 questions · ~103 min
More Behavioral & Leadership questions with a free account
6
More topics5 questions · ~43 min
Authentication and AuthorizationMedium

Assesses security design knowledge for access control in backend systems.

authenticationauthorizationPaytm
Performance Monitoring ToolsMedium

Tests your ability to instrument systems and use monitoring to drive architectural decisions.

experienceToolsarchitecturePaytm
API Design ConsiderationsMedium

Tests API design principles including contracts, versioning, security, and usability.

Trade-offsSuccess CriteriaScope ManagementPaytm
More questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
The finish line: interview-readyComplete all 46 questions plus 3 hands-on drills to finish this plan.