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Job Summary: We are seeking a Backend Java Engineer to develop cutting-edge technological solutions for Cyber Defense projects, ensuring national and international security. Key Highlights: 1. Lead the development of cutting-edge technological solutions in cyber defense 2. Participate in defining technical architectures and making key decisions 3. Professional growth and development within a leading Defense company Location: Barcelona, ES Professional Profile: Defense and Security Required Experience: Work Modality: Hybrid **At Indra Group, we protect what matters most.** We lead the development of cutting-edge technological solutions that strengthen national and international security. **Join our team working on European projects!** As part of our positioning as a leading company in the Defense sector, we aim to reinforce our team with a **Backend Java Engineer for Cyber Defense projects**. **What will you do on a day-to-day basis?** * Develop robust, scalable, and high-performance backend services in cyber defense environments. * Design, build, and evolve REST APIs while ensuring maintainability and security. * Work with Java 8\+ and Spring in complex, production-grade environments. * Design, optimize, and maintain relational databases, primarily PostgreSQL. * Participate in defining technical architectures and making key decisions. * Apply advanced testing practices (TDD/BDD) to guarantee software quality. * Collaborate with multidisciplinary teams using agile methodologies (Scrum/Kanban/SAFe). * Implement system integrations via messaging systems (Kafka). * Provide technical mentoring to junior profiles and conduct code reviews. * Drive continuous improvement by applying Clean Code principles and sound development practices. **What are we looking for in you?** * Minimum 5 years’ experience as a backend developer. * Proficiency in Java 8 or later and frameworks such as Spring / Spring Boot. * Solid experience in designing and implementing REST APIs. * Advanced knowledge of relational databases, especially PostgreSQL. * Demonstrated experience in testing (TDD and BDD). * Experience mentoring junior profiles. * Experience working in agile environments (Scrum, Kanban, or SAFe). * Experience with messaging systems such as Kafka. * Valuable experience with Quarkus, Docker, and quality tools like SonarQube. * Familiarity with Clean Code and SOLID principles. * Teamwork ability, proactivity, and results orientation. **What we offer you** * Stability and Future ✨: Long-term projects at a leading Defense company with over 60\.000 professionals and strong financial security. * Innovative and High-Impact Projects: Work with state-of-the-art technologies, delivering impact at both national and international levels. * Close and Transparent Environment: Enjoy direct, fluid communication with managers and colleagues in a collaborative and open environment. * Autonomy and Flexibility: Freedom to organize your work, with genuine work-life balance adapted to your rhythm. * Personalized Career Plan: Designed to boost your professional growth and development. * Continuous Training: Through Open University and Udemy for Business (over 6\.000 courses to specialize!). * Exclusive Well-being Discounts: Enjoy benefits at gyms, restaurants, stores, leisure activities, and more as an Indra employee. * Competitive Compensation and Flexible Benefits Plans tailored to your needs. * Remote Work: 60%, 3 days from home, 2 days in the office. **Our Process** * Application Review – We assess your experience and suitability for the role. * Initial Call (5\-10 min) – If you receive a call from an unknown number, it’s us. A relaxed conversation to get to know you and answer any questions. * Interview with Talent Acquisition Team: We want you to learn more about our company — values, career model, skills — so both you and the project team can assess mutual fit. * Technical Interview – You’ll meet the team, who will detail the project and daily tasks, and ask about your technical knowledge and skills. Additionally, we’ll send brief psychological and English proficiency assessments (if required) to better understand your profile. * Offer and Onboarding – If everything goes well, you’ll join our team and begin this new chapter together! Estimated Timeline: We aim for agility — approximately 1\-2 weeks. *Our commitment is to foster workplaces where people are treated with respect and dignity, supporting employees’ professional development and guaranteeing equal opportunities in selection, training, and promotion — offering 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 2026! Join a company certified as one of the best employers in Spain, thanks to our comprehensive HR management and the conditions we offer our professionals.
