Apple
Consumer electronics, software, and services leader known for secrecy and quality.
5 Rounds
~30 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Engineer
•
Technical
•
hard
You have a Spark job processing 50TB of App Store daily logs that is failing with an OutOfMemory (OOM) error during a shuffle phase. Walk me through your step-by-step approach to debug and resolve this issue.
#Apache Spark
#Performance Tuning
#Data Skew
#Memory Management
Data Engineer
•
Technical
•
medium
Explain how you would configure Kafka consumer groups to process Apple TV+ video playback events. What happens if the processing rate is slower than the ingestion rate, and how do you mitigate consumer lag?
#Apache Kafka
#Consumer Groups
#Backpressure
#Scaling
Data Engineer
•
Technical
•
hard
Compare and contrast Parquet and Avro file formats. If you were building a pipeline to ingest highly nested, rapidly changing JSON payloads from iOS crash reports, which format would you choose for the raw layer vs. the analytical layer, and why?
#File Formats
#Parquet
#Avro
#Data Architecture
Difficulty Radar
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Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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