Python SQL ORM Data Pipeline

Led a 4-person engineering team building a Python SQLAlchemy pipeline that automated financial data ingestion, validation, and storage — delivering clean, queryable data at scale.

Python SQL ORM Data Pipeline

Technologies Used

Python SQLAlchemy SQL PostgreSQL RESTful APIs

Key Features

ORM-based ingestion layer with schema validation at every stage
Automated retry logic and dead-letter handling for failed records
Led 4-developer team from design through production deployment
Modular adapter pattern supporting multiple financial data sources
Full test coverage on transformation and validation logic

Project Overview

Root Labs needed a robust internal data pipeline that could ingest financial data from multiple sources, validate it against a known schema, and store it in a queryable format — without relying on costly third-party vendors. I led a team of four engineers to design and build this system from scratch.

Technical Implementation

The pipeline was built in Python using SQLAlchemy as the ORM layer, connecting to a PostgreSQL database. Each data source was wrapped in a standardized adapter that normalized incoming payloads before they hit the validation layer. Validation checked for schema conformance, value ranges, and referential integrity — failed records were routed to a dead-letter queue for review rather than silently dropped.

The architecture was designed to be modular from day one: adding a new data source meant implementing one adapter class, not touching the core pipeline. This made it straightforward to onboard new providers as the business grew.

Team & Outcome

I owned the architecture and led the team through design, implementation, and deployment. The pipeline became the backbone of Root Labs’ internal data infrastructure — reliable, testable, and maintainable by the full team.

Completed on: Jan 1, 2025
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