Sigmacomputing interview questions

Showing 1–4 of 4 results

• Build a Pivot Table AggregatorMedium

  This question evaluates a candidate's ability to implement data aggregation and efficient lookup structures, focusing on grouping, associative aggregations, and maintaining intermediate state for derived metrics.

  SigmacomputingSoftware EngineerCoding & AlgorithmsTechnical Screen
• Build a pivot table class over shirt sales records with running and grand totalsMedium

  Implement a class that stores shirt sales records and builds pivot tables summing shirts sold by any row field and column field, then extend it with running totals and grand totals along both axes. It tests object-oriented structure, aggregation with dictionaries, deterministic layout, and consistency between cells and totals.

  SigmacomputingSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Evaluate a Formula AST with VariablesMedium

  This problem tests tree traversal techniques, recursive evaluation, and the implementation of short-circuit logic in expression trees containing variables.

  SigmacomputingSoftware EngineerCoding & AlgorithmsOnsite
• Implement a basic pivot table with totalsEasy

  This question evaluates a candidate's ability to perform in-memory data aggregation, multi-dimensional grouping, handling missing combinations, and formatted text output for pivot tables including row/column totals.

  SigmacomputingSoftware EngineerCoding & AlgorithmsTechnical Screen