Python Developer

Role: - Python Developer Mode of Work: - ONSITE Work Location: - Washington, DC (4 days onsite in a week). Rate: - 120K/Annum 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 Fast API or an approved equivalent framework, including request validation, API versioning, authentication, structured error responses, and Open API documentation.Strong knowledge of SQL and PostgreSQL, including data modelling, queries, functions, indexing, transaction management, and performance optimization.Proven ability to identify opportunities for engineering automation and productivity improvements using AI, Generative AI, intelligent agents, scripting, and developer tooling; experience delivering practical solutions that reduce manual effort, improve code quality, accelerate testing, and enhance team effectiveness.Experience with Pydantic, PyTest, importlib, caching, configuration management, and development of reusable Python utilities and packages.Experience translating complex formulas, business rules, dependency graphs, or scientific models into deterministic, traceable, and testable software components.Experience designing automated unit, integration, regression, and API tests, with disciplined defect analysis and test evidence.Experience with Microsoft Azure services, App Service or approved container platforms, Azure DevOps, continuous integration and deployment pipelines, secrets management, logging, monitoring, and application support.Strong understanding of secure software development, data protection, auditability, resilience, performance, and production support practices.Working knowledge of building science, energy and water efficiency, materials, embodied carbon, cost calculations, or sustainability standards is preferred.Ability to collaborate with product owners, architects, building science specialists, quality assurance teams, user experience teams, DevOps teams, and business stakeholders.Excellent analytical, documentation, communication, and problem-solving skills, with experience working in Agile and multicultural delivery teams across time zones.