Cubist interview questions

Showing 1–3 of 3 results

• Design a class to submit jobs with dependencies and track their statusMedium

  Design and implement a job tracker class that accepts job submissions with dependencies, hands out jobs that are ready to run, and reports each job's status. It tests state-machine design, dependency-graph bookkeeping, handling of failures and cycles, and thread safety when several workers call the class at once.

  CubistSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design a reusable event-driven framework for trading strategiesMedium

  Design a reusable, event-driven framework for trading strategies that a team can keep extending after a take-home handoff. It tests event modeling and dispatch ordering, strategy interfaces, backtest and live parity, order and risk management, and the tests and documentation that make a framework maintainable.

  CubistSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Rebuild a binary search tree from its postorder traversal in linear timeMedium

  Rebuild a binary search tree with distinct values from its postorder traversal and return the rebuilt tree's preorder traversal. The problem tests BST ordering properties, traversal orders, and meeting a strict O(n) time bound on inputs that include deeply skewed trees.

  CubistSoftware EngineerCoding & AlgorithmsTechnical Screen