PhonePe · SDE · Intern
PhonePe Interview Practice
Practice PhonePe interviews with free AI mocks — timed DSA rounds, scale-aware technical discussions, and behaviorals. Pair with the PhonePe prep guide before applying.
Hiring notes
- PhonePe operates at UPI scale — panels value clean code and complexity awareness.
- OA rounds are medium DSA with tight constraints and hidden edge cases.
- Expect follow-up questions that raise scale — practice talking through tradeoffs.
- Project deep-dives probe schema and scaling decisions — prepare one walkthrough.
Sample interview questions
Practice these aloud in Apply's mock interview room — speaking beats reading. Pair with PYQs before enabling coding rounds.
DSA
Find the maximum sum subarray in a list of transactions.
Tip: Kadane's algorithm — explain why it works before coding.
Coding
Given UPI transaction logs, group them by user and find the busiest hour.
Tip: Hash map with time buckets; state the complexity.
Technical
How would you handle a sudden spike in payment requests?
Tip: Queues, rate limiting, horizontal scaling — one concrete answer each.
DSA · Two Pointers
Merge two sorted arrays in place with O(1) extra space.
Tip: Fill from the end; discuss the pointer math clearly.
Design-lite
Design a transaction history feature with search.
Tip: Data model, index choice, and one filtering flow.
Behavioral
Tell me about a time you had to debug something you did not understand.
Tip: STAR with your investigation steps and the root cause.
Frequently asked questions
How do I practice for PhonePe interviews on Apply?
Open /dashboard/mock-interview, set company to PhonePe and role to SDE or intern, enable coding, and practice timed DSA rounds aloud. Use /prepare/phonepe-interview-questions-2026 and /pyqs for OA-level practice.
Does PhonePe mock practice cover scale questions?
Yes — sessions include technical prompts on handling spikes and scale, matching how PhonePe interviews think about systems.
Is PhonePe mock interview practice free?
Yes after Google sign-in. Unlimited sessions with scored feedback on Apply.