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Prep plan
Updated weekly · Last refresh Aug 30

Opera Solutions Software Engineer Interview Questions

The questions to prepare for a Opera Solutions Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~8htotal time
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1
CodingStart here. 20 questions · ~189 min
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysOpera Solutions
Clock Hands Exact AngleEasy
Practice

Calculate the smaller angle between clock hands using modular arithmetic and fractional hour-hand movement.

geometryOpera Solutions
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2
System Design12 questions · ~113 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingOpera Solutions
Design a Personalized Product RecommenderHard

Design an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.

Feature StoreFeature DriftModel ServingOpera Solutions
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3
SQL & Data Manipulation5 questions + 3 drills · ~77 min
4
Security & Infrastructure3 questions · ~28 min
Secure Service-to-Service API AccessEasy

Explain how to secure REST API calls between services with mTLS, workload identity, and incident response for credential compromise.

InfrastructureNetworkingOpera Solutions
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5
Pipelines4 questions · ~38 min
Detect Duplicate Emails at ScaleMedium

Assesses your ability to design scalable data pipelines for deduplication and correctness.

ETLData ModelingQualityOpera Solutions
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6
Behavioral & Leadership5 questions · ~47 min
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7
More topics1 question · ~9 min
Describing Your ResearchEasy

Tests your ability to clearly explain research scope, methods, and outcomes.

Trade-offsSuccess CriteriaRoadmappingOpera Solutions
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.