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.

About the Position

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 idóneo 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 Energy is an energytech focused on predictive maintenance solutions and digital transformation to improve performance in renewable energy generation.

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📌 Backend Python Developer (Barcelona)
🏢 Talent
📍 Barcelona