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# Backend Python Developer

- **Company:** Delfos Energy
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Unit Testing, Computer Engineering, Continuous Integration, Data Infrastructure, Relational Databases, Entity Relationship Models, Systems Analysis, Python (Programming Language), Machine Learning, Software Architecture, SQL Databases, SQLAlchemy, Web Applications, Flask (Web Framework), Git, Fastapi, Pytest, Kubernetes, Information Technology, Data Analytics, Data Pipelines, Docker
- **Published:** August 6, 2026
- **Apply:** https://www.buscojobs.com.es/backend-python-developer-en-barcelona-ID-365308610

## About the Role

Your Profile We are looking for a Mid-Level Python Developer to strengthen our team and further boost our technical structure!
If you are driven by innovation and enjoy a collaborative environment, this could be the ideal opportunity for your career.
Main Responsibilities Develop, maintain, and evolve web applications using Python Create and integrate APIs using FastAPI Write SQL queries and interact with relational databases Participate in data modeling (entity-relationship) and normalization Use tools such as Git and Docker throughout the development lifecycle Apply, whenever possible, emerging AI/ML solutions and data-driven automation to improve delivery efficiency Collaborate with the team on continuous improvement of processes, testing, and code architecture Required Qualifications Bachelor's degree in Computer Science, Computer Engineering, Systems Analysis and Development, or related fields Experience with Dagster, Airflow, or Prefect Knowledge of Python, SQLAlchemy, FastAPI or Flask, Pydantic, SQL, Data modeling, Git, Docker, Docker Compose Knowledge of AI/ML and data-driven automation Fluent English level Nice to Have TimescaleDB Alembic Pytest Type hints CI/CD Kubernetes (deployments, services, ingress) Unit testing Knowledge

## Description

Your Mission Interested in working with an AI Data Platform supporting sustainability, with backend Python development and Data Orchestration, i.E. airflow?This is your chance to become part of a startup internationally recognized for its cutting-edge technology.We are a predictive technology platform focused on maximizing performance and digitalizing operations in renewable energy parks.Our mission is to develop optimized, profitable, and user-friendly solutions, ensuring high performance and sustainability for energy producers.Your Profile We are looking for a Mid-Level Python Developer to strengthen our team and further boost our technical structure!If you are driven by innovation and enjoy a collaborative environment, this could be the ideal opportunity for your career.Main Responsibilities Develop, maintain, and evolve web applications using Python Create and integrate APIs using FastAPI Write SQL queries and interact with relational databases Participate in data modeling (entity-relationship) and normalization Use tools such as Git and Docker throughout the development lifecycle Apply, whenever possible, emerging AI/ML solutions and data-driven automation to improve delivery efficiency Collaborate with the team on continuous improvement of processes, testing, and code architecture Required Qualifications Bachelor's degree in Computer Science, Computer Engineering, Systems Analysis and Development, or related fields Experience with Dagster, Airflow, or Prefect Knowledge of Python, SQLAlchemy, FastAPI or Flask, Pydantic, SQL, Data modeling, Git, Docker, Docker Compose Knowledge of AI/ML and data-driven automation Fluent English level Nice to Have TimescaleDB Alembic Pytest Type hints CI/CD Kubernetes (deployments, services, ingress) Unit testing Knowledge of software architecture (patterns, repositories, services) About Us Delfos is doing more than predict failures it is scaling up operational knowledge.Delfos Energy is an energytech focused on predictive maintenance solutions and digital transformation to improve performance in renewable energy generation.#J-*****-Ljbffr


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