Core Banking Software Engineer practice interview

Ledger integrity, account services, transaction processing, migrations and safe changes to core banking systems. Practise the 5 questions interviewers ask for this role with follow-ups. Paid plans add scored feedback on every answer.

Practise this interview free

Free with an Intaviu account: 320 credits a month, at 10 credits a minute of practice. Private: interview creators never see them.

Mid level
20 minutes
5 questions
Scored feedback on paid plans

About the role

This interview covers the software behind accounts, balances, postings and transaction histories. The panel wants an engineer who protects ledger integrity, understands failure recovery and can improve a core system without disrupting live financial activity.

How to prepare

Review double-entry concepts, holds, available balances, reversals and immutable transaction records.
Prepare a system design for an account posting or transfer service.
Revisit database transactions, locking, concurrency and duplicate request handling.
Think through a staged migration with data checks and a tested rollback route.
Prepare an incident where you traced a balance or posting inconsistency.

Common mistakes

Treating a displayed balance as the ledger source of truth without explaining its derivation.
Using destructive updates where auditable correction entries are needed.
Proposing a migration without reconciliation checks or rollback.
Overlooking concurrent requests against the same account.

What to expect

A real first-round interview

5 questions the way interviewers ask for this role, with follow-ups when an answer needs more.

Spoken, like the real thing

Speak your answers in your browser or the free desktop app, with live captions. You can ask the interviewer to repeat anything.

Scored on 4 areas

The things this interview weighs most. With a paid plan, your report shows how you did on each one.

A private report

On Plus, Pro and Premium: every answer scored, your strongest lines quoted and what to say differently next time. Interview creators never see it.

Free with an Intaviu account. Ready when you are.Practise this interview free

Engineering