Stripe Interview Questions
Master your tech interview with our curated database of real questions from top companies.
Process auth requests with fraud rules
Question Implement a function that, given a list of Authorization Requests (timestamp_seconds, unique_id, amount, card_number, merchant), outputs a hu...
Convert bitmap into ASCII characters
Question Given an array/string of 0-1 bits representing a bitmap font, write code to render each character as a grid using '.' for 0 and '#' for 1, an...
Discuss challenging project examples
Behavioral and Leadership Interview Prompt — Software Engineer (Onsite) You will be assessed on problem-solving, teamwork, and leadership. Prepare con...
Design ledger and bikemap integration
System Design: Strongly Consistent Ledger and External Service Integration Context and Goal You are asked to design two components in a production-gra...
Debug wrong DOM attributes in unknown framework
Frontend Debugging Plan: Incorrect DOM Attributes in an Unfamiliar Framework Context You join a team using an unfamiliar frontend framework. In the br...
Discuss mentorship experience and outcomes
Behavioral Prompt: Mentorship Experience (Software Engineer HR Screen) Provide a concise, metrics-backed overview of your mentorship experience. 1) Sc...
Implement account scheduler with locking and LRU
Design a class AccountScheduler that manages the time-based availability of a fixed set of account IDs. Initialization You are given: - accounts: a li...
Find linked user records by similarity
You are given a list of user records. Each record has the following fields: - id (integer, unique) - name (string) - email (string) - company (string)...
Implement stateful connection router simulator
You are implementing a simplified connection router / load balancer for a Jupyter-like multi-tenant server system. There are N target servers, indexed...
Design an idempotent SQL ETL for late data
You own the daily_user_metrics fact table. Build an idempotent, rerunnable ETL that can be triggered for any date D and correctly handles duplicates, ...
Resolve conflicts and prioritize with stakeholders
Describe a specific time you had to juggle conflicting priorities from Risk, Sales, and Engineering on a payments analytics project. Use STAR with dat...
Diagnose and validate a ratio trend change
You are shown a weekly dispute_rate time series (disputes/succeeded_payments) that rises sharply, then partially reverts. Diagnose whether the change ...
Choose target customers and define success metrics
Stripe plans to launch “Instant Payouts+” for SMBs. How would you choose initial target customers and measure success? - Targeting: Propose a scoring ...
Write SQL to monitor weekly chargeback spikes
Write a single SQL query (PostgreSQL) to detect weekly chargeback spikes by country and industry. Week starts Monday (use date_trunc('week', ts) with ...
Design a hierarchical forecast for transactions
Stripe wants a country×industry daily GMV forecast for the next 90 days (2025-09-01 to 2025-11-29) using 3+ years of history. You have features: day-o...
Quantify impact without an A/B test
Stripe-like scenario: You ship a change aimed at increasing payment success rate for APAC merchants, but randomization is infeasible. In ≤6 analyst‑ho...
Describe a high-impact project via STAR
Using STAR, walk me through one project you led that measurably changed a core business metric. Include: Situation (company, product, date range), Tas...
Prioritize a 6-hour take-home effectively
You are given a take-home similar to the above with a suggested 6-hour limit but a scope that could take much longer. Describe, concretely, how you wo...
Plan an experiment to validate targeting impact
You produced a ranked list of merchants predicted to adopt Subscription. Design an experiment to validate business impact of targeting them with a sal...
Design a model for subscription adoption prediction
Predicting 60-Day Adoption of Subscription by Non-Subscription Merchants Context You need to predict which merchants who are not currently using the S...