Practice the coding challenges data engineers face in interviews. Covers streaming systems, system design patterns, data pipelines, and infrastructure problems.

Data Engineering

FAANG SQL 50

DSA 150

MLE Coding 75

Learn NumPy in 14 Days

Learn Python in 14 Days

Learn SQL in 21 Days

Meta SQL

Stats Superhero

ML Ninja

Pandas Pro

Count Min Sketch

HyperLogLog Counter

Slowly Changing Dimension Tracker

Stream Join Engine

Streaming Median Finder

Task Dependency DAG Executor

Column Drift Detector

Data Contract Validator

Data Reconciliation Checker

Duplicate Detection Engine

Backpressure Flow Controller

Batch Retry Queue

Columnar Run Length Encoder

Data Freshness Monitor

Micro Batch Accumulator

Null Imputation Strategy Engine

Referential Integrity Checker

Change Data Capture Applier

Checkpoint Recovery Manager

Ring Buffer Logger

Schema Change Detector

Outlier Fence Tagger

Schema Validator

Stream Fanout Router

Bloom Filter

Data Engineering

Transfer Learning Layer Freezing