MirahLabs Engineering Blog
Technical insights, tutorials, and architectures written by our design and backend engineers.
Cloud Computing
April 08, 2026
S3 Data Lakes: Partitioning, Parquet Format, and Athena Query Optimization
Querying raw JSON or CSV data in S3 data lakes is slow and expensive. Optimize your lake using hive-partitioning, Apache Parquet columnar storage, and AWS Athena.
⏱️ 20 min read
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Artificial Intelligence
April 03, 2026
Feature Engineering for Machine Learning: From Raw Data to Model-Ready Features
Feature engineering is the most impactful step in the ML pipeline. Learn how to handle missing data, encode categoricals, create interaction features, and use automated feature selection.
⏱️ 21 min read
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