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
•
System Design
•
hard
Design a real-time data pipeline to ingest Salesforce streaming events (Change Data Capture) into a centralized Data Lake for analytics.
#Kafka
#Streaming
#Data Lake
#CDC
Data Engineer
•
System Design
•
medium
Design an ETL pipeline to migrate 10 years of legacy CRM data from an on-premise SQL Server into Salesforce Data Cloud.
#ETL
#Batch Processing
#Data Migration
Data Engineer
•
System Design
•
hard
Design a system to aggregate daily API usage metrics across millions of Salesforce tenants to enforce multi-tenant governor limits.
#Distributed Systems
#Aggregation
#Multi-tenancy
Data Engineer
•
System Design
•
hard
Design a backend data architecture for a Tableau dashboard that needs to serve sub-second queries on billions of rows of telemetry data.
#OLAP
#Caching
#Query Optimization
#Materialized Views
Data Engineer
•
System Design
•
hard
Design a system to detect duplicate Lead records in real-time as they are ingested via web forms.
#Entity Resolution
#Streaming
#Caching
#Fuzzy Matching
Data Engineer
•
System Design
•
medium
Design an idempotency mechanism for an Airflow DAG that processes daily payment transactions. How do you ensure no duplicate processing if the DAG fails halfway?
#Airflow
#Idempotency
#Data Pipelines
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.