Interview prep · Paytm
Paytm Interview Questions 2026: SDE, Backend & Coding Guide
Paytm interview questions for SDE 1, SDE 2, and backend engineer roles. Covers coding OA, system design, technical interview, and HR rounds with preparation strategy.
Paytm hires SDE 1, SDE 2, and backend engineers for its Noida fintech platform. Here is the complete interview guide — OA, coding, system design, and HR rounds.
Paytm interview process overview
Paytm conducts 3-4 rounds: online assessment, 2 technical interviews, and an HR round. Process takes 1-2 weeks.
OA: 2-3 coding problems (medium) on HackerRank. 60-90 minutes.
Technical round 1: Coding + CS fundamentals (Java, Spring Boot, microservices for backend roles).
Technical round 2: System design + project deep dive.
HR round: Behavioral, why Paytm, compensation.
Paytm coding questions (previous year)
Array + hash map: frequency, two-sum, group problems
String: parsing, matching, compression
Tree: traversal, BST operations, level order
System design: design payment system, design wallet, design UPI integration
Check Paytm previous year coding questions on Apply PYQs for exact problems.
System design at Paytm
Design a UPI payment system — transaction flow, idempotency, reconciliation
Design a wallet system — balance, ledger, concurrency control
Design a merchant onboarding system — KYC, verification, activation
Key concepts: distributed transactions, message queues (Kafka), caching (Redis), microservices
How to prepare for Paytm interviews
For backend roles: master Java, Spring Boot, microservices, Kafka, SQL. Paytm backend is Java-heavy.
Practice 50+ medium LeetCode problems. Paytm coding is moderate difficulty.
Understand fintech: UPI, wallets, payments, settlements, KYC.
Use Apply's mock interview at /mock-interview with company set to Paytm.
How Apply helps for Paytm
Tailor your resume with Paytm JD keywords (Java, Spring Boot, Microservices, SQL, Kafka). Browse Paytm PYQs at /pyqs.