Peter Song 
Change Data Capture (CDC) pipelines on AWS have become the backbone of modern data warehousing strategies, enabling organizations to maintain near real-time analytics capabilities without overwhelming source databases. By combining Amazon S3 as a data lake, AWS Glue for transformation and cataloging, and Amazon Redshift for analytics, you can build a scalable CDC pipeline that … Read more
Change Data Capture (CDC) has become an essential pattern for modern data architectures, enabling real-time data synchronization between systems without the overhead of batch processing or manual data extraction. When you need to capture database changes and stream them reliably to downstream consumers, combining Debezium with Apache Kafka creates a powerful, production-ready solution. This article … Read more
NumPy stands as the foundational library for numerical computing in Python and serves as the backbone of the entire machine learning ecosystem. For data engineers building ML pipelines, preprocessing data, or implementing custom transformations, mastering NumPy’s capabilities is not optional—it’s essential. This guide explores the NumPy operations and patterns that data engineers encounter daily when … Read more
Moving machine learning models from Jupyter notebooks to production systems represents a critical transition that many data scientists struggle with. While you might have a model that achieves impressive accuracy on test data, that model provides zero business value until it’s accessible to applications, users, or other systems. FastAPI has emerged as the go-to framework … Read more
Change Data Capture (CDC) has become essential for modern data architectures that require real-time or near-real-time data synchronization. Rather than replicating entire tables repeatedly, CDC identifies and captures only the changes—inserts, updates, and deletes—dramatically reducing data transfer volumes and enabling incremental updates. Fivetran simplifies CDC implementation by handling the complexity of log-based replication, transformation, and … Read more
Building data pipelines that scale from gigabytes to terabytes requires fundamentally different approaches than traditional single-machine processing. PySpark provides the distributed computing framework necessary for handling enterprise-scale data, but knowing how to structure pipelines for scalability requires understanding both the framework’s capabilities and distributed computing principles. This guide walks through building a complete, production-ready PySpark … Read more
Building an ETL pipeline in Databricks transforms raw data into actionable insights through a structured approach that leverages distributed computing, Delta Lake storage, and Python or SQL transformations. This guide walks through a complete ETL pipeline example, demonstrating practical implementation patterns that data engineers can adapt for their own projects. We’ll build a pipeline that … Read more
Delta Live Tables (DLT) represents a paradigm shift in how data engineers build and maintain data pipelines on Databricks. While the framework abstracts much of the complexity inherent in traditional data engineering, following established best practices ensures your pipelines are reliable, maintainable, and cost-effective. This guide explores essential practices that separate production-ready DLT implementations from … Read more
Real-time data ingestion has become a critical capability for organizations seeking to make immediate, data-driven decisions. Delta Live Tables (DLT) in Databricks revolutionizes streaming data pipeline development by combining declarative syntax with enterprise-grade reliability. Instead of managing complex streaming infrastructure, data engineers can focus on defining transformations and quality requirements while DLT handles orchestration, state … Read more
Presenting machine learning solutions to non-technical stakeholders represents one of the most critical challenges in data science. You might have built a model with exceptional accuracy, but if executives, product managers, or clients can’t understand how it works or why they should trust it, your solution will struggle to gain adoption. The gap between technical … Read more
