**Location:**León, CL, ES **Professional Profile:** Defense and Security **Required Experience:** More than 2 years of experience **Work Modality:** Hybrid At Indra Group, we protect what matters most. We lead the development of cutting-edge technological solutions in defense and cybersecurity, participating in strategic European projects that strengthen technological sovereignty and protection against digital threats. **Join our team and develop critical solutions for European cyberdefense!** We are looking for a **Senior Python Developer** to join innovative projects in the fields of cybersecurity and digital defense. **What will you do?** * Implement business logic and data-oriented backend functionalities. * Design, build, and optimize backend applications for data collection, processing, and exposure. * Create and maintain REST APIs for communication between system components. * Collaborate with multidisciplinary teams to ensure efficiency, security, and scalability. * Participate in the development of advanced geolocation, spatial data analysis, and visualization solutions. * Apply agile practices: unit testing, continuous integration, and automated deployment. * Improve code efficiency and security by applying Clean Code and SOLID principles. **What are we looking for in you?** Don’t worry if you don’t meet 100% of the requirements. Go ahead—learn about our offer and tell us what you can bring to the team! * Degree in Computer Science, Telecommunications, or related field. * More than 5 years of development experience with **Python** (FastAPI, Flask, Django). * Experience with relational and NoSQL databases (MySQL, PostgreSQL, MongoDB). * Knowledge of unit testing, BDD, and TDD. * Experience with agile methodologies (Scrum, Kanban, SAFe). * Minimum B2 level English (spoken and written). **It’s a plus if you have:** * Experience with Docker, Kafka, CI/CD, and quality tools (SonarQube, Linter). * Knowledge of Clean Code and SOLID Principles. * Familiarity with critical environments and defense projects. **What we offer you** * **Participation in strategic cyberdefense and national security projects.** * **Hybrid work modality:** Flexibility to balance your professional and personal life. * **Continuous training:** Access to more than 6,000 courses and a personalized career plan. * **Work with state-of-the-art technology** in critical environments. * **Social benefits, competitive compensation,** and **flexible compensation plans** tailored to your needs. **What does our selection process look like?** * **Profile review:** We assess your experience and technical knowledge. * **Brief initial contact (5–10 min):** A call to address any initial questions. * **Technical interview:** With the team, where we’ll delve deeper into your experience and vision. * **Offer and onboarding:** If everything aligns, you’ll join our team! * **Estimated timeline:** 1–2 weeks. *Our commitment is to foster work environments where people are treated with respect and dignity, supporting employees’ professional development and ensuring equal opportunities in recruitment, training, and promotion, while providing a workplace free from discrimination based on gender, age, disability, sexual orientation, gender identity or expression, religion, ethnicity, marital status, or any other personal or social circumstance.* **INDRA is a Top Employer 2025! Join a company certified as one of the best employers in Spain.**