← Robinhood Interview Insights
Not the deepest question but it tripped me up a bit.
Start by acknowledging that Robinhood's public API is primarily for account data and trading, not market data. Then, structure your answer around the main functional areas: authentication, account information, trading, and market data. Emphasize how these endpoints support Robinhood's product ecosystem and the trade-offs in exposing them.
Pro tip: Show awareness that Robinhood's API is not fully public and is subject to strict rate limits and regulatory constraints. Mention that the API design reflects Robinhood's focus on simplicity and mobile-first experiences.
Explain that OAuth 2.0 is used for authentication, with endpoints for token generation and refresh. This is critical for secure access to user data.
Describe endpoints that retrieve user account details, buying power, and portfolio holdings. These are core to providing users with a snapshot of their financial status.
Discuss endpoints for placing orders (market, limit, stop), canceling orders, and checking order status. Highlight the importance of idempotency and error handling.
Mention endpoints for quotes, historical data, and instrument details. Note that these may be limited or require separate agreements due to data licensing.
Summarize key trade-offs: rate limiting, latency, security, and regulatory compliance. Emphasize how these shape the API's design and usage.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.