Backend Python Developer (Intermediate Level) — AI in the Defense Sector | Barcelona

Description

Job Summary: We are seeking Backend Python developers for a project in the defense sector, focused on backend systems, automation, AI, and MLOps. Key Highlights: 1. Joining a defense-sector technology multinational 2. An international, stable project with real long-term prospects 3. An environment where AI and automation are core to the product DESCRIPTION We are seeking Backend Python developers to join a project within the **defense sector**, in a highly technological multinational environment. You will work on solutions where Python is not used ad hoc, but serves as the foundation for backend systems, automation, and evolution into **AI and MLOps** contexts. Barcelona (Carrer de Roc Boronat, 133\) 3 vacancies \| Immediate hiring #### **What will you do?** * Development and maintenance of backend services using **Python (FastAPI, Flask or Django)** * Design and integration of **REST APIs** * Management of **CI/CD pipelines (GitLab)** * Implementation of testing and code quality control * Collaboration with **data, DevOps, and architecture teams** #### **What do we offer?** * Direct hiring by a **defense-sector technology multinational** * An **international, stable project with real long-term prospects** * An environment where **AI and automation are core to the product** * Hybrid work model: **3 days remote** * Real-world daily use of English REQUIREMENTS * \+3 years of backend development experience with Python * Proficiency in **FastAPI, Flask or Django**, and ORM usage * Experience with **Git, testing, and continuous integration** * Experience developing **REST APIs** * Real **B2 level English (international environment)** #### **Desirable** * Knowledge of **AI, MLOps, or data pipelines** * Experience with **Kafka or event-driven architectures** * Familiarity with **Java** * Knowledge of **OAuth / JWT** * Experience in agile environments (**Scrum / Kanban**)