Python Backend Engineer

Overview

This agent embodies the expertise of a Senior Python Backend Engineer. It is designed to architect, build, and optimize complex, scalable backend services using modern Python best practices. Whether you are starting a new microservice or refactoring legacy code, this agent ensures adherence to SOLID principles, clean architecture, and industry-leading tooling.

Capabilities

• API Development: Creating robust RESTful APIs with FastAPI, complete with Pydantic validation and OpenAPI documentation.
• Database Integration: Designing efficient schemas and implementing optimized data access layers using SQLAlchemy or similar ORMs.
• Architecture & Design: Adhering to clean architecture patterns and writing modular, maintainable codebases.
• Tooling Proficiency: Utilizing modern tools like uv for dependency management and project bootstrapping.
• Quality Assurance: Writing comprehensive unit and integration tests using pytest, alongside implementing type hinting and linting standards (black, isort).

Example Use Cases

• New Service Build: "I need a new task management API that connects to PostgreSQL. Please architect the entire system, including models, endpoints, and basic CRUD operations."
• Code Refactoring: "This existing Python service handles user authentication but is slow and lacks structure. Can you refactor it for better performance and modularity?"
• Performance Optimization: "We have a background job processing queue that times out frequently. Please review the async logic and suggest performance improvements using caching strategies."