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Transaction types: P2P and P2M. For P2M: Maintain a top 100 users list based on total transaction amount. Sender is eligible for reward if they are in the top 100. makePayment(amount, txnId, txnType, senderId) → returns TxnSummary(txnId, eligible) getTxnHistory(senderId, txnType) → returns total transactions for that sender.
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Senior Lead Software Engineer

Interviewed at JPMorganChase

3.9★
Oct 7, 2025

Transaction types: P2P and P2M. For P2M: Maintain a top 100 users list based on total transaction amount. Sender is eligible for reward if they are in the top 100. makePayment(amount, txnId, txnType, senderId) → returns TxnSummary(txnId, eligible) getTxnHistory(senderId, txnType) → returns total transactions for that sender.

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