Real, anonymized candidate journeys from recent (2025–2026) PhonePe SDE loops in India — round by round, including what was asked, how the candidate approached it, and the outcome.
One complete journey, start to finish
Machine Coding — Workflow Execution Engine
Design an Airflow-style DAG-based workflow engine with concurrent task execution and automatic retries; the interviewer pushed hard on how retries interact with idempotency.
System Design — Merchant Settlement System
Design a T+1 merchant payout system with commission deduction and reconciliation; had to defend how the ledger stays consistent if a settlement job fails mid-run.
DSA (one hour, three problems)
Jump Game, Jump Game II, and Minimum Number of Arrows to Burst Balloons, back to back in a single hour.
Hiring-Manager Round
Covered project history, team structure, and compensation expectations.
Key takeaway: For the machine-coding round, prioritize a clean, extensible DAG/task model over cramming in every feature; for the settlement-system design, be ready to reason about ledger consistency and reconciliation, not just the happy path. The candidate received the offer here but chose a competing offer instead.
More real interview journeys
The first round of each journey below is shown in full; the rest of each candidate's journey — every remaining round, verbatim — is part of the Placement-Ready PYQ Kit.
Online Assessment (CodeSignal)
Four DSA problems spanning medium to hard difficulty, solved under a strict timer.
🔒 3 more rounds — continue this journey in the full kit
Low-Level Design (90 min + 30 min review)
Code design focused on concurrency and thread safety, with a follow-up review of the design choices made.
🔒 3 more rounds — continue this journey in the full kit