About the project Were looking for a Backend Developer Python to build and evolve the internal platform that supports the AI team of a leading client in the renewable energy sector. Its an event-driven platform that needs to handle variable load, recover from failures without manual intervention, and scale at the pace demanded by a fast-growing AI team. What youll do * Design, build, and maintain Python backend services within an event-driven architecture. * Design and manage queues and consumers (RabbitMQ): load balancing across consumers, retry and failure-recovery strategies, handling messages that cant be processed. * Containerize services with Docker and take part in deployment infrastructure decisions. * Work directly alongside the platforms AI team, understanding their consumption needs and integrating their work into the backend. * Contribute to architecture decisions: integrations between microservices, dependency management, and packaging. Requirements (must-have) * Solid Python experience in production environments, with at least one of these frameworks: FastAPI, Django,



or Flask (experience with async frameworks is especially valued). * Real experience building or maintaining event-driven architectures / distributed systems with message queues (RabbitMQ, Kafka, or similar). * Ability to explain, with real judgment, how consumer failures are handled: what happens when a message cant be processed, how to prevent it from blocking the queue and affecting the rest of the system, and what retry/discard strategies are applied. * Experience creating your own Dockerfiles and working with Docker Compose; solid understanding of what a Docker layer is and how it works. * Experience working with microservices and their integrations (APIs, queues, events). * Comfortable with Python dependency management (pip, PyPI; experience with uv is a plus). Nice-to-have * Experience with Apache Airflow for workflow/pipeline orchestration. * Integrating uv inside a Dockerfile. * E

📌 Desarrollador de Python (Barcelona)
🏢 Capitole
📍 Barcelona