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Prep plan
Updated weekly · Last refresh Sep 20
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Editorialist X Software Engineer Interview Questions

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

10questions
~2htotal time
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1
CodingStart here. 3 questions · ~38 min
Reverse a Linked ListEasy
Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked ListsEEditorialist X
Find Duplicates in O(n)Medium
Practice

Identify repeated product IDs in one pass using a hash set with O(n) time complexity.

deduplicationtime complexityArraysEEditorialist X
Efficient Search for CatalogHard

Tests system design and algorithm selection for fast search over large product catalogs.

efficiencyEEditorialist X
2
SQL & Data Manipulation6 questions + 2 drills · ~97 min
Explain ACID in Transaction SystemsEasy

Explain the four ACID properties and why they matter for reliable transaction processing in SQL systems.

acid propertiestransactionsdata integrityEEditorialist X
Top 5 Expensive ProductsEasy
Practice

Filter Editorialist X products to find the five most expensive items in the Dresses category.

Data Manipulationsql querydatabase queryingEEditorialist X
Indexing for Large DatasetsMedium

Tests practical indexing choices and performance tuning for real workloads.

optimizationEEditorialist X
Join Three Related TablesMedium

Tests understanding of multi-table joins and relational modeling.

JoinssqlEEditorialist X
SQL for Duplicate Customer RemovalHard
Practice
Practice drill

Identify duplicate customer records, reassign their transactions, and remove the redundant records while preserving the canonical customer.

deduplicationdata cleaningData ManipulationThomson Reuters
SQL UNION Across TablesEasy
Practice
Practice drill

Combine distinct records from three tables using a PostgreSQL UNION query and return consistently ordered results.

data relationshipsJoinsData ManipulationNational Oilwell Varco
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3
More topics1 question · ~13 min
Choose Monolith or MicroservicesMedium

Evaluate the execution trade-offs between monoliths and microservices and explain how you would choose the right approach.

Trade-offsRisk AssessmentScope ManagementEEditorialist X
The finish line: interview-readyComplete all 10 questions plus 2 hands-on drills to finish this plan.