Recently received Stripe 2026 Summer Intern VO Invitation, the whole process mainly includes two rounds:Coding And Integration, relatively strong. The time to receive a VO is fast, and an appointment can usually be made within two weeks of completing the OA. After the whole process, the interview pace was tight but the experience was good. Share the interview question types, ideas and preparation experience. If you are also preparing for VO from Stripe or similar large companies, I hope it will be helpful.
Stripe 2026 VO Interview Overview
- Post：Stripe 2026 Summer International
- Interview rounds: Two rounds of VO (Coding + Integration)
- Form: Online, Coding focuses on business logic implementation, and Integration focuses on project practice.
- Interview time schedule: VO will be arranged within two weeks after OA is completed
- Difficulty: Above average, with a sense of closeness to the business
Round 1: Coding round
Question background
The interviewer gave a business-related scenario: design a simple payment transaction recording system and implement a PaymentLedger Class used to record payment transactions. Request guarantee of sameness Payment_id There is no duplicate record, and the payment will be deducted from the total income after the refund.
Follow-up questions
- How to support partial refund (refund amount is less than the original payment amount)?
- How to optimize
Get_payments_by_datePerformance (if the data volume is large)? - What to do if the timestamp format may be illegal?
- How to support query by time range (such as a certain month)?
- How to persist this data (store it in the database)
Reference Python code
From collections import defaultdict
from datetime import datetime
class PaymentLedger:
def __init__(self):
self.payments = {} # payment_id -> payment info
self.total_income = 0
self.date_index = defaultdict(list)
def add_payment(self, payment_id, amount, timestamp):
if payment_id in self.payments:
return False
# Time validity check
try:
ts = datetime.fromisoformat(timestamp)
except:
return False
self.payments[payment_id] = {'amount': amount, 'timestamp': ts, 'refunded': 0}
self.total_income += amount
self.date_index[ts.date()].append(payment_id)
return True
def refund_payment(self, payment_id, amount=None):
if payment_id not in self.payments:
return False
record = self.payments[payment_id]
refund_amount = amount if amount is not None else record['amount'] - record['refunded']
record['refunded'] += refund_amount
self.total_income -= refund_amount
return True
def get_payments_by_date(self, date):
return [self.payments[pid] for pid in self.date_index.get(date, [])]
Round 2: Integration round
This round of interviews is conducted in the form of a small project. The interviewer will ask you to clone the Git repository, run the project locally and implement a number of specified functions. The topic content mainly involves API calls, data processing and business logic implementation. The focus of the examination is not only the correctness of the logic, but also the rationality of the code structure, testing capabilities and debugging skills. Compared with the Coding round, this round is more focused on practical engineering capabilities, requiring candidates to have a clear understanding of the project structure and API, and to be able to complete development tasks independently.
Problem-solving ideas
- Familiar with the warehouse structure and clear data flows and interfaces
- Implement the specified function to ensure that the input and output meet the requirements
- Call the API and process the returned data, paying attention to exceptions and edge cases
- Write simple tests to verify logical correctness
This round is more focused on actual engineering capabilities, not only testing logic implementation, but also testing the understanding of project structure and API.
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