Python Developer

This is a 6+ month contract position for a Python Developer located in Washington, Washington, United States.

Responsibilities

• Develop secure, scalable, and production-quality backend applications and calculation services using Python
• Design and build REST APIs using FastAPI or approved equivalent frameworks, including request validation, API versioning, authentication, structured error responses, and OpenAPI documentation
• Translate complex formulas, business rules, dependency graphs, and scientific models into deterministic, traceable, and testable software components
• Design and implement automated unit, integration, regression, and API tests with disciplined defect analysis and test evidence
• Identify opportunities for engineering automation and productivity improvements using AI, Generative AI, intelligent agents, scripting, and developer tooling
• Deploy and support applications on Microsoft Azure services, including App Service or approved container platforms, using Azure DevOps pipelines, secrets management, logging, and monitoring

Qualifications

• Required

• Minimum 8 years of professional Python development experience delivering secure, scalable, and production-quality backend applications or calculation services

• Strong proficiency in modern Python, object-oriented design, modular architecture, reusable libraries, type validation, dependency management, and coding standards such as PEP 8

• Hands-on experience developing REST APIs using FastAPI or an approved equivalent framework

• Strong knowledge of SQL and PostgreSQL, including data modelling, queries, functions, indexing, transaction management, and performance optimization

• Experience with Pydantic, PyTest, importlib, caching, and configuration management

• Experience developing reusable Python utilities and packages

• Experience with Microsoft Azure services, App Service or approved container platforms, Azure DevOps, continuous integration and deployment pipelines, secrets management, logging, and monitoring

• Proven ability to identify opportunities for engineering automation and productivity improvements using AI, Generative AI, intelligent agents, scripting, and developer tooling

• Preferred

• Working knowledge of building science, energy and water efficiency, materials, embodied carbon, cost calculations, or sustainability standards