rules-engine Interview Questions

This reported interview question from Rippling asks you to build a flexible corporate card expense rules engine where policies are treated as dynamic data rather than hardcoded logic. You will need to design an extensible evaluator that processes financial transaction fields, coerces data types, and evaluates complex conditional rule trees using logical operators without modifying the core codebase. Tackling this architectural challenge tests your ability to apply clean design principles to real-world business logic. Access to the comprehensive problem description and optimal model solution requires a subscription.

In this Stripe interview simulation, candidates face a practical rules engine design problem centered around computing merchant fraud scores based on dynamic transaction criteria and configurable rules. The challenge tests your architectural skills in structuring data models, evaluating conditional actions, and maintaining running totals efficiently within a complex transaction processing pipeline. To explore the full design discussion, architectural patterns, and complete implementation solution, a paid subscription is required.