Senior Python Backend Consultant

Senior software engineer and independent consultant with 15+ years of experience, specializing in backend development with Python (Django, FastAPI, Flask) and PHP (Laravel, Drupal). Proficient in API development, data pipelines, and AI integration features (RAG, LangChain, LangGraph, vector DBs). Strong infrastructure and operations skills including Docker, CI/CD, Kubernetes, and Linux. Comfortable owning projects end-to-end and mentoring. Remote-first with a reliable 4-hour daily overlap with US business hours. Handles invoicing and tax administration. Possesses work authorization in US (SS/EIN) and Spain (NIE). Spanish availability is limited due to DNV limitations of no more than 20% revenue sourced from Spanish companies.