Seeking a skilled Python and full-stack software developer to help build, optimize, and maintain web-based applications and backend services. The ideal candidate is proficient in Python (Pandas, NumPy, FastAPI/Django/Flask) and modern full-stack development (React, Node.js, JavaScript/TypeScript, HTML/CSS). Responsibilities include developing scalable backend systems, creating intuitive user interfaces, integrating third-party APIs, building data pipelines, and ensuring overall system performance, reliability, and security. Experience with cloud platforms, databases (PostgreSQL, MongoDB), and deploying production-ready applications is highly preferred. This is an ongoing freelance role with potential for long-term collaboration.