Robinhood
Senior
Scale low-latency trading APIs on Robinhood's (Bitstamp) Core Exchange team
As a Senior Software Engineer on the Core Exchange team, you'll own core components of the Exchange REST API, FIX API, WebSockets, and market data services, optimizing for latency, reliability, and data correctness for active-trader clients. The role sits within Bitstamp's engineering division and requires on-call participation.
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What this interview tests
- Low-latency, high-throughput distributed systems
- Trading APIs (REST, FIX, WebSockets)
- Data correctness and ordering guarantees under load
- SQL (MySQL) / NoSQL (DynamoDB) data modeling trade-offs
- On-call incident response for mission-critical systems
Common question themes
Describe a system you optimized for low latency and high throughput
How would you evolve a trading API without breaking active clients
How do you guarantee correctness and ordering in a real-time market data pipeline
MySQL vs DynamoDB — how would you choose for a given trading data problem
Walk me through an on-call incident on a critical trading system you owned
Tell me about aligning product, infra, and frontend teams on an API change
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