Fintech and payments · financial services
Fintech and payments Data Science Interview Questions
Fintech and payments, also written financial services, means Stripe, Robinhood, Zerodha, Coinbase, PhonePe, Visa, Capital One, DraftKings, Mastercard and FanDuel. These 40 data science interview questions come from all of them, in SQL, pandas and Python. Start solving and check your level of preparation.
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All the questions
- Any duplicate transaction ids?Python
Visaeasy - Longest streak of successful paymentsPython
Stripeeasy - Orders in a price rangeSQLStripeeasy
- Split requests into batchesPythonStripeeasy
- Best single tradePython
Robinhoodmedium - Best stretch of daysPythonRobinhoodmedium
- Busiest stock per clientSQL
Zerodhamedium - Completed versus other ordersSQLStripemedium
- Daily returnSQL
Coinbasemedium - Days from signup to first orderSQLStripemedium
- Everyone in the top threeSQL
DraftKingsmedium - High credit utilizationSQL
Capital Onemedium - Invert team assignmentsPythonCapital Onemedium
- Lineups above their contest averagePandas
FanDuelmedium - Merchants with high fraud ratesSQL
Mastercardmedium - Missed minimum paymentsSQLPremiumCapital Onemedium
- Money moved by payment typeSQL
PhonePemedium - Money moved so farSQLPremiumPhonePemedium
- Monthly approved spendPandasVisamedium
- Monthly traded valuePandasRobinhoodmedium
- Place within the contestPandasFanDuelmedium
- Points above the contest averageSQLDraftKingsmedium
- Position after each tradeSQLZerodhamedium
- Price moved since last tradeSQLPremiumZerodhamedium
- Prize ranks with tiesSQLDraftKingsmedium
- Read a nested settingPythonMastercardmedium
- Running account balancePandasPremiumStripemedium
- Three day averageSQLCoinbasemedium
- Best and worst day per assetPandasRobinhoodhard
- Card-testing patternsSQLPremiumMastercardhard
- Cross-border share by card tierSQLVisahard
- Drawdown from the peakSQLCoinbasehard
- Failures in a rowSQLPremiumPhonePehard
- Holdings in long formatPandasPremiumRobinhoodhard
- Longest rising streakSQLCoinbasehard
- Month-over-month spend changeSQLPremiumVisahard
- Net position gridPandasPremiumZerodhahard
- Retries before it workedSQLPremiumPhonePehard
- The day the position closedSQLPremiumZerodhahard
- Three transactions that cancel outPythonStripehard
Questions last reviewed 19 October 2026.