Backend Java Engineer - Barcelona (Hybrid)

Description

Job Summary: Indra Group is seeking a Backend Java Engineer for cyberdefense projects, developing cutting-edge technological solutions that strengthen national and international security. Key Highlights: 1. Innovative and high-impact cyberdefense projects 2. A close, transparent, and collaborative environment 3. Autonomy and flexibility in work organization Location: Barcelona, ES Professional Profile: Defense and Security Required Experience: Employment Type: Hybrid **At Indra Group, we protect what matters most.** We lead the development of cutting-edge technological solutions that reinforce 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 strengthen our team with a **Backend Java Engineer for cyberdefense projects**. **What will you do daily?** * Develop and maintain backend services in cyberdefense environments. * Design, build, and evolve REST APIs ensuring quality and scalability. * Work with Java 8\+ and Spring in production environments. * Manage and integrate relational databases, primarily PostgreSQL. * Participate in technical design and continuous improvement of systems. * Implement unit testing and apply quality best practices (TDD/BDD). * Collaborate with multidisciplinary teams using agile methodologies (Scrum/Kanban). * Participate in system integrations, including messaging systems (Kafka). * Contribute to product technical evolution and code reviews. * Apply Clean Code principles and development best practices. **What are we looking for?** * Minimum **3 years of experience as a backend developer**. * **Proficiency in Java 8 or higher**, and frameworks such as Spring / Spring Boot. * Experience in developing and integrating REST APIs. * Solid knowledge of relational databases (PostgreSQL or others). * Experience with unit testing and familiarity with TDD or BDD. * Experience working in agile environments (Scrum, Kanban or SAFe). * Basic knowledge of Kafka. * Valuable experience with Docker and quality tools such as SonarQube. * Familiarity with Clean Code and SOLID principles. * Teamwork skills, 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: You’ll work with state-of-the-art technologies, delivering impact both nationally and internationally. * A Close and Transparent Environment: Enjoy direct, fluid communication with managers and colleagues in a collaborative and open setting. Autonomy and Flexibility* : You’ll have the freedom to organize your work, with genuine work-life balance adapted to your pace. * A personalized career plan: Designed to drive your professional growth and development. * Continuous training: via Open University and Udemy for Business (over 6\.000 courses to help you specialize!). * Exclusive discounts for your wellbeing: 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 at home, 2 days in the office. **Our hiring 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. This informal conversation helps us get to know you and answer any questions. * Interview with the Talent Acquisition team: We want you to learn more about us as a company — our values, career model, skills framework — so both you and the project team can evaluate 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, promoting professional development for all employees while guaranteeing equal opportunities in recruitment, training, and promotion — ensuring 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 Spain’s best employers, thanks to our comprehensive HR management and outstanding conditions for professionals.