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Ninjatrader Interview Experiences
3935 interview stories from candidates at 857 companies: how each round went, what was asked and how it ended. Every company page links to practice questions in the same style.
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- Log Parser and Anomaly Detector Coded Against Pytest in an IDENinjatrader · Software Engineer · Technical Screen · Sep 2026
An interview at NinjaTrader, a small brokerage. Server Log Analyzer and Anomaly Detector Problem environment: an IDE with server.log (sample logs), analyzer_stub.py (skeleton code), and test.py (pytest unit tests). You have to implement the functions below. Input data spec (JSON Schema): the input is multi-line text, and each line is a JSON string containing these 4 required fields: timestamp: a…