Insurance interview questions and answers

Policy and claim systems, where the engineering difficulty is product configurability and time: effective dates, retroactive change, and a record that must be reconstructable as at any past instant.

19 published across 7 topics.

Insurance Domain Knowledge for EngineersA 19-minute read on how the topic fits together, before the questions.Insurance domain fundamentals58 short answers on one page, for revising rather than studying.

masterclass guide

Insurance Platform Interviews for Engineers and ArchitectsA working guide to the domain an insurance platform interview tests: the policy lifecycle, rating and rate filings, aggregator distribution, claims and reserving, fraud triage, catastrophe aggregation, and the conduct constraints on automated decisions - with what the interviewer is scoring at each point.70 min

Policy Administration

3 questions

Quote, bind, issue, endorse, renew and cancel, and the temporal data model underneath.

hardDesignScenario

A broker asks you to backdate a cover change to three months ago. How do you model the policy so that works?

A backdated endorsement in an insurance policy needs a bitemporal model: effective date for when cover changes and recorded date for when the insurer learned it. Store append-only versions so cover, premium and documents can be rebuilt for any past date. Use this policy administration answer to show the decision, trade-off, and evidence rather than a memorised definition.

5 minmid, senior, staff

hardScenarioConcept

A customer bought cover on your site last night and this morning the card payment failed. Are they on risk, and what does your system do next?

They are almost certainly on risk, because the contract was formed when you accepted the risk and not when the money cleared. The remedy is cancellation for non-payment, which runs forwards from a notice date rather than erasing the policy, so the system needs a pending-cancellation state and an answer for a claim inside the unpaid window.

6 minmid, senior, staff

hardConceptScenarioDesign

A customer cancels a twelve-month policy after four months. How much do you refund?

It depends on who cancelled and why: pro rata returns the unused share, short rate keeps a penalty, and which applies is set by the policy wording and the jurisdiction rather than by the system. Fees are usually not refundable, and the calculation has to be reproducible years later.

5 minmid, senior

All 3 in Policy Administration

Underwriting & Rating

3 questions

Rating engines, rules versus models, referral workflows, and rate-change governance.

hardScenarioDesign

The business wants to change a rating factor next Monday. Walk me through what actually has to happen.

In a filed environment the rate is a regulated artefact rather than a configuration value, so the change is versioned by state and effective date, applies to business written from that date rather than to everything, and must leave every existing quote and policy reproducible against the version that priced it.

5 minmid, senior, staff

hardDesignCase Study

How would you build a rating engine, and how do you reproduce a quote you gave someone eighteen months ago?

Model the rating algorithm as an ordered set of steps over versioned rate tables, pin every quote to the exact rate version and input snapshot that produced it, and keep eligibility and referral rules outside the price calculation so an underwriter decision never changes the number.

5 minmid, senior, staff

hardDesignCase Study

Underwriting want to put a new external data source into the price. What has to be true before it goes anywhere near the rating algorithm?

It has to be available at quote time for a known share of risks, obtainable as it stood historically so a backtest means anything, defensible as a factor rather than a proxy, and stable enough that the vendor cannot change your filed rate for you. Everything else is a modelling detail.

6 minmid, senior, staff, lead

All 3 in Underwriting & Rating

Claims Lifecycle

3 questions

First notification of loss, reserving, adjudication, payment, subrogation and recovery.

mediumConceptScenario

Walk me through a claim from first notification to closure, and tell me what the reserve is doing at each stage.

A claim moves from notification through coverage verification, adjudication, payment and closure, carrying a case reserve that is the handler's current estimate of what remains to be paid. It moves whenever information arrives, and every movement is a dated financial transaction.

5 minentry, mid, senior

hardConceptDesignScenario

A claim is notified and nobody yet knows what it will cost. Why does the system have to put a number on it immediately, and what happens to that number?

A reserve is money recognised in the accounts on the strength of an estimate, so the insurer's reported result depends on it long before anything is paid. It moves as the file develops, every movement is itself reportable, and the history of movements matters as much as the current figure.

5 minmid, senior, staff

hardScenarioDesign

You have paid your policyholder in full and the accident was the other driver's fault. Walk me through what your claims system now has to do about that.

Pay the insured first, then pursue the party at fault as subrogation, tracking the recovery as a separate asset against the same claim rather than as a credit that erases the payment. Salvage, the insured's uninsured excess and the eventual partial settlement all have to be allocated, and the gross figure must survive.

6 minmid, senior, staff

All 3 in Claims Lifecycle

Insurance Fraud

2 questions

Detection at claim and application, network analysis, and investigator workflow.

hardScenarioDesign

Your fraud score holds up a claim from a customer of eleven years, the investigation finds nothing, and settlement is six weeks late. What did that cost you, and what should the design have done differently?

It cost a customer, a complaint, and a training example you have mislabelled as clean. The fix is to keep the score ranking an investigation queue rather than gating a payment, to time-box every referral with an interim payment path, and to record why a referral was cleared instead of merely that it was.

6 minmid, senior, staff

hardDesignCase Study

How would you detect insurance fraud, and how is detecting it at claim different from detecting it at application?

Insurance fraud detection differs at application and claim. Application fraud checks declared risk data at quote time; claim fraud combines claim scoring, entity resolution, network analysis and investigator queues sized to SIU capacity.

5 minmid, senior, staff

Actuarial & Reserving

3 questions

Reserving concepts an engineer must model, triangles, and why actuarial data needs are not reporting needs.

hardConceptDesign

How does the reserve figure your systems produce end up changing next year's rates, and where does that loop break?

Reserving estimates what business already written will ultimately cost, and pricing needs that cost attributed back to the characteristics that were rated. The loop breaks over which period a loss belongs to, over recent years whose figures are still moving, and over premium earned at rates nobody charges any more.

6 minmid, senior, staff

hardConceptDesign

What is a loss development triangle, and what does the actuary need from your claims system that reporting does not?

A loss development triangle groups claims by accident or underwriting period and development age so actuaries can estimate ultimate cost, IBNR and reserve movement. It needs immutable claim transactions, evaluation-date reconstruction and clear paid versus incurred measures.

5 minmid, senior, staff

hardScenarioDesign

The actuarial team says they cannot use the claims data your reporting warehouse produces. What are they missing?

Reporting shows the current state of each claim, and actuaries need the state as at each past valuation date, cut by accident period and development period. That is a different shape of data, and it cannot be reconstructed from a table that overwrites a claim's figures as it develops.

5 minmid, senior, staff

All 3 in Actuarial & Reserving

Reinsurance

3 questions

Treaty and facultative arrangements, cession, bordereaux, and how risk transfer shows up in systems.

hardScenarioCase Study

A windstorm produces four thousand claims across three days. How does your system decide that is one event for reinsurance purposes, and what turns on the answer?

The treaty defines the occurrence, usually as losses from one peril falling inside a stated window of consecutive hours, and the cedant chooses where that window starts. Grouping the claims one way reaches a higher layer once; grouping them another way pierces the retention twice, so the aggregation is a financial decision resting on loss timestamps.

6 minsenior, staff, lead

hardConceptDesign

A claim payment goes out. How does your system work out how much of it a reinsurer owes, and what does that require you to have kept?

Cession allocates each payment across the treaties covering the policy, and which treaties those are depends on when the policy was written rather than when the claim happened. So a payment must stay sliceable by treaty, layer, accident date and underwriting year long after the file closed.

5 minsenior, staff

hardConceptDesign

What is the difference between treaty and facultative reinsurance, and where does cession show up in the systems you build?

Treaty reinsurance covers a class of business automatically, while facultative reinsurance covers one named risk by negotiation. Systems must calculate cession from the right treaty version and store gross, ceded and net transactions for audit.

6 minmid, senior, staff

All 3 in Reinsurance

Distribution & Channels

2 questions

Brokers, agents, aggregators and embedded insurance, plus commission and settlement.

mediumConceptDesign

Who are the parties in an insurance distribution chain, and how would you calculate and settle their commission?

Brokers act for the customer, agents and coverholders act for the insurer, aggregators generate quote volume and embedded partners sell cover inside another purchase. Commission accrues from premium transactions, reverses when they reverse, and settles either gross or net of the intermediary's deduction.

6 minmid, senior

hardScenarioDesign

The same risk comes back to you five times in one day through an aggregator, with slightly different answers each time. What does that do to your quote pipeline, and what does it do to your book?

Treat the five as one risk being re-presented, not five prospects. Resolve them to one entity, budget the response time and the per-quote cost of external data against a low conversion rate, and read the edits as price probing, because the version that finally binds is the cheapest description of the risk rather than the truest.

6 minsenior, staff, lead