Ramp Online Assessment Questions

Ramp 2025 Online Coding Assessment for Applied AI Engineer Position

This post was last edited by Anonymous on 2025-09-29 10:38. I applied for an Applied AI Engineer position at the end of September and immediately received an online assessment (OA) invitation. It was

Ramp Software Engineer Platform SWE Online Test Experience

This post was last edited by Anonymous on 2025-09-29 11:07. This is my third sharing this week. I'm asking for points to see my interview experience! This time, I applied for a Software Engineer/Platf

Ramp Software Engineer Intern Online Assessment Experience

I think I got the online assessment (OA) for free by mass applying. Many people said they got 45 minutes, but mine was 90 minutes for the code signal 4 parts. It was progressive; you had to solve one

Bank Automation: Simulate ATM Transactions with Balance and Overdraft Rules

## Round 1 - Coding / OA ## Problem Simulate a bank account system. Implement `deposit`, `withdraw`, and `transfer`. Withdrawals fail if the account balance would fall below zero. Transfers atomically move funds between two accounts — if the source lacks funds, the transfer fails entirely. ```python class BankAccount: def __init__(self, account_id: str, balance: float): ... def deposit(self, amount: float) -> float: # returns new balance ... def withdraw(self, amount: float) -> float: # raises InsufficientFundsError if fails ... class Bank: def __init__(self): ... def add_account(self, account: BankAccount) -> None: ... def transfer(self, from_id: str, to_id: str, amount: float) -> bool: ... def get_balance(self, account_id: str) -> float: ... ``` ## Example ``` bank = Bank() bank.add_account(BankAccount("ACC1", 500)) bank.add_account(BankAccount("ACC2", 100)) bank.transfer("ACC1", "ACC2", 200) -> True bank.get_balance("ACC1") -> 300 bank.get_balance("ACC2") -> 300 bank.transfer("ACC2", "ACC1", 500) -> False # insufficient ``` ## Follow-ups 1. How do you prevent race conditions if two threads transfer from the same account simultaneously? 2. How would you implement a transaction history log with timestamps? 3. What happens if `from_id` or `to_id` doesn't exist in the bank? 4. How would you add an overdraft limit so accounts can go negative up to a set threshold?

Snake Case to Camel Case: Convert Identifiers Between Naming Conventions

## Round 1 - Coding / OA ## Problem Write a function that converts a snake_case string to camelCase and another that goes the reverse direction. Handle leading/trailing underscores and consecutive underscores gracefully. ```python def snake_to_camel(s: str) -> str: ... def camel_to_snake(s: str) -> str: ... ``` ## Example ``` snake_to_camel("hello_world") -> "helloWorld" snake_to_camel("get_user_by_id") -> "getUserById" snake_to_camel("__private_var__") -> "__privateVar__" snake_to_camel("already") -> "already" camel_to_snake("helloWorld") -> "hello_world" camel_to_snake("getUserById") -> "get_user_by_id" camel_to_snake("HTMLParser") -> "html_parser" camel_to_snake("myURLParser") -> "my_url_parser" ``` ## Follow-ups 1. How do you handle acronyms like `HTMLParser` or `URLEncoder` in camel-to-snake conversion? 2. Extend your solution to also support PascalCase as a third convention. 3. How would you apply these conversions recursively to all keys in a nested JSON object? 4. What edge cases arise with empty strings, single characters, or strings that are already in the target format?