Type · algorithmic

Growth · Software Engineer Interview Guide
Sign up to see ATSHow to Pass the Descartes Underwriting Software Engineer Interview in 2026
The Descartes Underwriting DNA (TL;DR)
The Descartes Underwriting Interview Loop
Your onsite loop will typically consist of 5 rounds.
- 1
Round 1
Recruiter ScreenMotivation, role fit, logistics. - 2
Round 2
Coding ScreenLeetCode-medium algorithmic problems under time pressure. - 3
Round 3
System DesignDistributed systems, trade-offs at scale, architecture under constraints. - 4
Round 4
Onsite CodingLeetCode-hard, debugging, code clarity, edge cases. - 5
Round 5
Behavioral / LeadershipPast evidence of ownership, influence, resolving conflict.
The Danger Zone: Top Reasons Candidates Fail
Based on our database of Descartes Underwriting interview outcomes, avoid these common traps:
- Giving a generic answer about wanting to work in fintech.
- Failing to handle edge cases like missing data points or sudden sensor failures.
- Portraying themselves as always right and the other person as unreasonable.
- Inefficient data structures leading to high memory or CPU usage.
Test Yourself: Real Descartes Underwriting Questions
Three real prompts pulled from our database.
Type · past-experience
Type · debugging
+ many more questions, signals, and worked examples
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Descartes Underwriting Interview Question Bank
A sample from our database, grouped by round. Sign up to see the full set.
9 of 15 questions shown
Recruiter Screen
1- 1
Type · motivation
What interests you about Descartes Underwriting specifically, given our focus on parametric insurance for climate risks?
Coding Screen
3- 2
Type · algorithmic
Given a stream of real-time weather data (temperature, wind speed, precipitation) for a specific location, design an algorithm to detect if a 'major storm event' has occurred based on predefined thresholds. The system needs to be efficient for high-volume data. - 3
Type · algorithmic
You are given a dataset of historical insurance claims, each with a date, a claim amount, and a geographical region. Write a function to calculate the rolling 30-day average claim amount for each region. Optimize for performance if the dataset is very large. - + 1 more questions in this round (sign up to unlock)
System Design
3- 4
Type · system-design
Design a system to ingest, process, and store real-time satellite imagery data to monitor crop health for agricultural insurance. Consider data volume, processing latency, and the need for historical analysis. - 5
Type · system-design
Design an API for a parametric insurance platform that allows clients to query policy details, trigger payouts based on external data feeds (e.g., weather APIs), and submit new policy requests. Focus on security, reliability, and extensibility. - + 1 more questions in this round (sign up to unlock)
Onsite Coding
3- 6
Type · algorithmic
Implement a function that calculates the probability of a specific weather event (e.g., hurricane category 3 or higher) occurring in a given region within the next N days, based on historical climate data and potentially a simplified weather model. Discuss the assumptions and limitations of your model. - 7
Type · coding
Write a function to simulate the payout process for a portfolio of insurance policies. Each policy has different triggers (e.g., rainfall exceeding X mm, wind speed above Y knots) and payout structures. The function should handle concurrent policy checks and payout calculations efficiently. - + 1 more questions in this round (sign up to unlock)
Behavioral / Leadership
5- 8
Type · Conflict Resolution
Tell me about a time you had a significant disagreement with a colleague or team member. How did you handle it, and what did you learn? - 9
Type · past-experience
Tell me about a time you had to work with a complex, poorly documented legacy system. How did you approach understanding and improving it? - + 3 more questions in this round (sign up to unlock)
Unlock the full Descartes Underwriting question bank
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Interview tracks at Descartes Underwriting
How Descartes Underwriting's DNA translates across functions. Pick your role.
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Practice Descartes Underwriting interviews end-to-end
Descartes Underwriting Mock Interview
Run a live mock interview with our AI interviewer using Descartes Underwriting-style prompts. Get scored on structure, signal, and answer length - exactly how the real loop grades you.
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STAR Stories for Descartes Underwriting Behavioral Rounds
Build a Story Bank of your past wins, mapped to the leadership signals Descartes Underwriting interviewers grade on. Reuse them across every behavioral round.
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Descartes Underwriting Interview Prep Hub
The frameworks behind every Descartes Underwriting round: CIRCLES for product sense, hypothesis-driven debugging for analytical, STAR for behavioral. Learn each one in 10 minutes.
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Interview Frameworks
CIRCLES, STAR, AARRR, RICE, MECE. The exact frameworks that make Descartes Underwriting interviewers nod instead of frown. Step-by-step playbooks with the moves and the pitfalls.
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