Data Engineering

Building scalable, reliable data pipelines and infrastructure for enterprise-grade analytics

Overview

Data engineering forms the backbone of any successful analytics initiative. It encompasses the design, construction, and maintenance of data pipelines that move, transform, and prepare data for analysis at scale.

This competency focuses on building robust, performant data infrastructure that can handle the volume, velocity, and variety demands of modern enterprise data while maintaining data quality and governance standards.

Pipeline Architecture & Design

Modern data pipelines must be designed for scalability, reliability, and maintainability. This involves careful consideration of data flow patterns, processing paradigms, and infrastructure requirements.

ETL vs ELT Strategies

ETL (Extract, Transform, Load)

Traditional approach suitable for structured data with well-defined schemas and complex transformations that benefit from pre-processing.

ELT (Extract, Load, Transform)

Modern cloud-native approach leveraging powerful compute resources to transform data after loading, enabling faster ingestion and more flexible transformation logic.

Batch vs Streaming Processing

Selecting appropriate processing patterns based on business requirements, data characteristics, and latency needs. Implementation of hybrid architectures that support both batch and real-time processing paradigms.

Technical Implementation

Implementation involves leveraging modern cloud platforms and tools to build data pipelines that are both powerful and maintainable.

Python
PySpark
SQL
Azure Data Factory
Delta Lake
Change Data Capture

Data Quality & Monitoring

Ensuring data quality and pipeline reliability through comprehensive monitoring, testing, and alerting strategies.

Data Validation

Implementing automated data quality checks including schema validation, completeness testing, and business rule verification.

Pipeline Monitoring

Establishing comprehensive monitoring for pipeline performance, data freshness, and system health with proactive alerting.

Error Handling & Recovery

Building resilient pipelines with proper error handling, retry logic, and automated recovery mechanisms.

Performance Optimization

Optimizing data pipelines for performance, cost, and resource utilization through advanced techniques and best practices.

Partitioning Strategies

Implementing effective data partitioning to improve query performance and enable efficient data processing.

Parallel Processing

Designing pipelines to leverage parallel processing capabilities and optimize resource utilization.

Incremental Loading

Implementing change data capture and incremental loading patterns to minimize processing time and resource consumption.