Interview prep · PhonePe
PhonePe Interview Questions 2026: SDE, Backend & Coding Guide
PhonePe interview questions for SDE 1, SDE 2, and backend engineer roles. Covers OA coding, system design, technical interview, and HR rounds with preparation strategy.
PhonePe hires SDE 1, SDE 2, and backend engineers for its Bengaluru fintech platform. Here is the complete interview process — OA, coding, system design, and HR — with preparation tips.
PhonePe interview process overview
PhonePe typically conducts 3-4 rounds: online assessment (OA), 1-2 technical interviews, and a hiring manager / HR round. The process takes 1-2 weeks.
OA: 2-3 coding problems (medium/hard) on HackerRank or similar platform. 60-90 minutes. DSA focus: arrays, strings, trees, graphs, DP.
Technical round 1: Coding problem + core CS fundamentals (OS, DBMS, OOP). Deep dive into one of your projects.
Technical round 2: System design (for SDE 2+) or harder coding problem. Questions on scalability, caching, databases.
HR / hiring manager: Behavioral, past experience, why PhonePe, compensation discussion.
PhonePe coding questions (previous year)
Array manipulation: subarray sum, two pointers, sliding window
Graph problems: shortest path, connected components, BFS/DFS
String problems: pattern matching, anagram groups, palindrome variations
Tree problems: level order traversal, LCA, diameter
DP problems: knapsack, LIS, coin change variations
Check PhonePe previous year coding questions on Apply PYQs for exact problems asked.
System design questions at PhonePe
Design a UPI payment system — handle transactions, idempotency, reconciliation
Design a wallet system — balance management, concurrency, ledger
Design a notification system — push notifications, SMS, email aggregation
Focus on: database choice (SQL vs NoSQL), caching (Redis), message queues (Kafka), and failure handling
How to prepare for PhonePe interviews
Practice 50+ medium LeetCode problems focusing on arrays, strings, trees, and graphs. PhonePe loves DSA fundamentals.
Read about fintech architecture: UPI, payment gateways, idempotency, distributed transactions.
Prepare 2 projects with clear tech stack explanations — PhonePe values hands-on building.
Use Apply's mock interview at /mock-interview with company set to PhonePe for realistic practice.
PhonePe interview tips
PhonePe values clean, production-quality code. Write readable code with good variable names.
Know your projects inside out — be ready to explain architecture, trade-offs, and what you'd do differently.
For system design, start with requirements clarification, then high-level design, then deep dive.
Research PhonePe's products: UPI, Wallet, Switch, POS. Reference them in your answers.
How Apply helps for PhonePe
Tailor your resume with PhonePe JD keywords (Java, Spring Boot, Kafka, Redis, distributed systems). Use Interview prep with company set to PhonePe.
Browse PhonePe PYQs at /pyqs. Practice mock interview at /mock-interview.