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Updated weekly · Last refresh Oct 6
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Eventual Treasury Software Engineer Interview Questions

The questions to prepare for a Eventual Treasury Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
databaseStart here. 1 question · ~8 min
ACID Under ConcurrencyMedium

Evaluates understanding of ACID guarantees and how they support safe concurrent database operations.

databaseACIDEEventual Treasury
2
Trade-offs1 question · ~8 min
Isolation Levels Trade-offsMedium

Tests understanding of isolation levels and their impact on correctness and performance.

Trade-offsdatabase conceptsEEventual Treasury

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3
Conflict Resolution1 question · ~8 min
Concurrent Record Conflict ResolutionMedium

Tests conflict resolution strategies for concurrent updates and data consistency.

Conflict ResolutionconcurrencyEEventual Treasury
4
acid properties1 question + 1 drill · ~18 min
ACID Under High ConcurrencyMedium

Tests ability to reason about ACID guarantees under concurrent access.

acid propertiesdatabase managementconcurrencyEEventual Treasury
Database Consistency Under ConcurrencyMedium
Practice
Practice drill

Audit account balances against posted ledger entries using aggregation and NULL-safe balance calculations.

deadlocksacid propertiesdata integrityRevolut
5
SQL & Data Manipulation1 question + 2 drills · ~28 min
Atomicity in Distributed TransactionsHard

Tests knowledge of distributed transaction atomicity mechanisms and failure handling.

EEventual Treasury
SQL Concurrency and LocksHard
Practice
Practice drill

Identify waiting PostgreSQL lock requests and the granted requests that block them.

deadlocksdatabase managementACIDDeel
Optimizing Slow SQL QueriesHard
Practice
Practice drill

Identify rolled-back or lock-waiting transactions and summarize their concurrency impact using aggregation and a left join.

deadlocksdatabase managementACIDDeel
6
performance1 question · ~8 min
Indexing and Concurrency PerformanceMedium

Tests ability to connect indexing strategy to locking, contention, and throughput.

performanceconcurrencyEEventual Treasury
The finish line: interview-readyComplete all 6 questions plus 3 hands-on drills to finish this plan.