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ArcGate Software Engineer Interview Questions

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

5questions
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1
JoinsStart here. 1 question + 2 drills · ~30 min
Explain SQL Join TypesEasy

Explain INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF JOINs with examples and when to use each.

JoinsData WranglingGroup ByAArcGate
Indexing and Query PerformanceMedium
Practice
Practice drill

Write a selective PostgreSQL ticket query and explain how indexing can improve its filtering and sorting performance.

database optimizationJoinsData WranglingZendeskFactored
Troubleshoot Slow Query PlansHard
Practice
Practice drill

Diagnose slow PostgreSQL queries with EXPLAIN ANALYZE, buffer evidence, statistics, and targeted indexes.

database optimizationJoinsData WranglingTaskRabbit
2
sql1 question · ~10 min
Inner vs Left Join ExampleMedium

Evaluates ability to write correct SQL joins and reason about result sets.

sqlAArcGate

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3
migration1 question · ~10 min
Database Migrations in PythonMedium

Evaluates knowledge of schema migration workflows and safe evolution of database structures.

migrationdatabase managementpythonAArcGate
4
database management1 question · ~10 min
ORM Advantages in PythonMedium

Assesses understanding of ORM tradeoffs and how they affect ArcGate-style data access patterns.

database managementpythonAArcGate
5
database optimization1 question · ~10 min
Optimize a Slow SQL QueryHard
Practice

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAArcGate
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