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Sofar Ocean Software Engineer Interview Questions

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

21questions
~3htotal time
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1
CodingStart here. 6 questions · ~48 min
Debug Node API Memory LeakHard

Tests performance profiling, memory leak diagnosis, and API reliability under load.

memory leakjavascriptperformanceSofar Ocean
Clean Sensor CSV and SmoothMedium

Tests data cleaning, missing-value handling, and time-series feature engineering.

data cleaningcsv parsingSofar Ocean
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2
Behavioral & Leadership9 questions · ~72 min
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3
More topics6 questions · ~48 min
Serve Maps With Limited BandwidthHard

Tests system design tradeoffs for bandwidth constraints and client experience for maritime users.

Trade-offsdesign systemSofar Ocean
Real-Time Marine Telemetry PipelineHard

Tests system design for scalable real-time ingestion, reliability, and throughput.

Stream ProcessingOrchestrationtelemetrySofar Ocean
SolidWorks to 3D PrintMedium

Assesses practical CAD-to-manufacturing workflow understanding and engineering tradeoffs.

Sofar Ocean
Forecast Usage ThresholdHard

Evaluates time-based forecasting approach and correctness for threshold prediction.

ForecastingData AnalysisSofar Ocean
Nest.js and Postgres for VoyagesHard

Tests backend modeling, API design, and database schema skills for route optimization workflows.

api designschema designSofar Ocean
Extract Substrings From CSVMedium

Assesses data parsing, validation, and robust string extraction logic in a data pipeline.

Data Analysisstring manipulationcsv parsingSofar Ocean

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL: Character CountEasy
Practice
Practice drill

Count a target character case-insensitively in a Discord message using PostgreSQL string functions.

Data Analysissql queriesstring manipulationDiscord
SQL: Unique Words Between MessagesHard
Practice
Practice drill

Use PostgreSQL string splitting, CTEs, joins, and window functions to find words unique to two Discord messages.

Data Analysissql queriesstring manipulationDiscord
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankRevolutChime
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.