PhonePe's coding rounds tie classic data-structures and algorithms to payments reality: sliding-window top-K over a UPI transaction stream, rate limiting per merchant at thousands of requests per second, and dynamic-programming counting problems framed as cashback denominations.
In 2026 expect medium-to-hard problems where the interviewer wants your optimal-substructure reasoning stated aloud, an honest complexity analysis, and a note on idempotency or concurrency because the code would sit in a real payments backend. Puzzles for their own sake are rare; in-domain framing is the norm.
About PhonePe
India's largest UPI app by volume; also offers insurance, mutual funds, gold, and merchant payments.
Online coding assessment on a DSA platform
Technical coding round one on data structures and algorithms
Technical coding round two on harder problems and complexity
Hiring-manager or bar-raiser round, then offer
Round 1 (60-90 min)
online assessment with two to three DSA problems.
Round 2 (60 min)
live coding on arrays, strings, and sliding-window or heap problems.
Round 3 (60 min)
harder coding round with dynamic programming and complexity discussion.
Sourced from 2+ candidate post-mortems. Hit Practice to answer any one with AI voice feedback.
The typical PhonePe recruitment process has 4 stages: Online coding assessment on a DSA platform → Technical coding round one on data structures and algorithms → Technical coding round two on harder problems and complexity → Hiring-manager or bar-raiser round, then offer.
PhonePe typically conducts 3 interview rounds: Round 1 (60-90 min): online assessment with two to three DSA problems.; Round 2 (60 min): live coding on arrays, strings, and sliding-window or heap problems.; Round 3 (60 min): harder coding round with dynamic programming and complexity discussion..
HireStepX recommends the Reason-Aloud DSA framework for this type of interview: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case
To answer this question well, HireStepX recommends the Reason-Aloud DSA approach: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case Ground your answer in a specific real example from your own experience.
To answer this question well, HireStepX recommends the Reason-Aloud DSA approach: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case Ground your answer in a specific real example from your own experience.
To answer this question well, HireStepX recommends the Reason-Aloud DSA approach: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case Ground your answer in a specific real example from your own experience.
To answer this question well, HireStepX recommends the Reason-Aloud DSA approach: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case Ground your answer in a specific real example from your own experience.
To answer this question well, HireStepX recommends the Reason-Aloud DSA approach: State the brute force, name the pattern (sliding window, DP, heap), optimise with the invariant spoken out loud, then analyse time and space and mention the production edge case Ground your answer in a specific real example from your own experience.