Company: Tekion
Round: Technical (DSA)
Date: 4th April 2026
Type: Hiring Drive
Difficulty: Medium-Hard

Context

Attended a Tekion hiring drive on 4th April 2026. This was the DSA/Problem solving round. The interviewer gave a real-world design problem around a policy engine — something very relevant to Tekion's domain (automotive retail / DMS platform where configurable business rules are common).

The Question

Design a Policy Engine. We define a list of policies where each policy contains a condition expression (combination of AND/OR operators over field comparisons). Given a policy ID and a data object, return ALLOWED or DENY.

What was asked specifically:

1. Design the data model for:
   • Policy (id, condition tree)
   • EvaluationRequest (policyId, data)
   • EvaluationResponse (policyId, decision)
2. Write code for the policy engine that evaluates the conditions and returns ALLOWED/DENY.

Sample Policy given by interviewer

P1: {
  (creditScore >= 720 AND accountStatus == "Active") OR (receivableDays < 30)
}

Sample Data

{
  "creditScore": "750",
  "accountStatus": "Active",
  "receivableDays": "45",
  "annualRevenue": "600000",
  "yearsInBusiness": "5"
}

Based on policy ID and the data object, the engine should return ALLOWED or DENY.

Hope this helps anyone prepping for Tekion interviews or LLD rounds in general!