Job Summary: We are seeking a QKD & QKDN Network Engineer to design, implement, and validate experimental QKDN networks and quantum encryption systems. Key Highlights: 1. You will participate in the design and implementation of advanced QKDN networks. 2. You will collaborate on cybersecurity and quantum communications projects. 3. You will work with cutting-edge technologies that strengthen national security. Location: Madrid, MD, ES Professional Profile: Defense and Security (PyS) 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 that reinforce national and international security. **Join our Cybersecurity and Quantum Communications team!** As part of our positioning as a leading company in Defense and Security, we are looking to hire a **QKD \& QKDN Network Engineer**, to contribute to the **QKD GEO GARBO** project by participating in the design, implementation, and validation of **experimental QKDN networks** and advanced quantum encryption systems. **What will you do?** --------------- * Participate in the **design and implementation of QKDN networks**, aligned with **ITU and ETSI standards**. * Work with various **components of a QKD network**, such as: + QKD Controller + Network Manager + Network Agents * Deploy and integrate components into **experimental networks**, verifying compliance with **functional requirements and project KPIs**. * Collaborate in the **definition and execution of basic tests** for QKD systems and networks. * Analyze the operation of cryptographic and network management mechanisms. * Collaborate with **cybersecurity and communications teams** in multidisciplinary environments. * Participate in integration, validation, and technical documentation tasks. * Contribute to the evolution of solutions developed in quantum communications projects. **What are we looking for in you?** ------------------------ You do not need to meet 100% of the requirements. We want to get to know you and understand what you can bring. ✅ **1–2 years’ experience** in **QKD and/or QKDN networks**. ✅ Knowledge of **QKDN networks compliant with ITU/ETSI standards**. ✅ Experience or familiarity with **QKD network control and management components**. ✅ Knowledge of **symmetric and asymmetric cryptography**. ✅ Basic experience in **network management** and **Linux environments**. ✅ Knowledge of **C and C\+\+** (intermediate level). ✅ Interest in **quantum communications and advanced cybersecurity technologies**. ### **Valued Technical Skills** * Basic design of **test cases and test plans**. * Test and validation strategies for equipment and systems. * Implementation of test solutions in experimental environments. * Knowledge or familiarity with **Teraflow** (desirable). ### **Functional Knowledge** * **Encryption and encryption tools** in the field of cybersecurity. ✅ Analytical ability and continuous learning capacity. ✅ Strong teamwork and technical communication skills. ✅ Availability to work in **Alcobendas**, under a **hybrid model (60% remote work annually)**. **The Project** --------------- You will join the **QKD GEO GARBO** project, a strategic initiative focused on developing and validating **Quantum Key Distribution (QKD) solutions** and **QKDN networks**, with direct application in Defense and Cybersecurity environments. The project is carried out on **experimental infrastructures**, focusing on interoperability, standards compliance, and performance evaluation. **What We Offer** ----------------------- * **Stability and future** ✨: Long-term projects within a leading company in Defense and Security. * **Real innovation**: Participation in quantum technologies and advanced cryptography. * **Expert environment**: Collaboration with specialists in communications, networking, and cybersecurity. * **Flexibility**: Hybrid work model with **60% annual remote work**. * **Technical career plan**: Professional development in emerging technologies. * **Continuous training**: Open University and Udemy for Business (\+6\.000 courses). * **Benefits and discounts**: Leisure, wellness, and flexible compensation. * **Competitive remuneration**, commensurate with experience and contribution. **What does our selection process look like?** ------------------------------------------ * Review of your profile * Initial contact (5‑10 min) * Interview with Talent Acquisition * Technical interview * Offer and onboarding * ️ **Estimated duration**: 2 weeks. *Our commitment is to foster work environments where people are treated with respect and dignity, promoting professional development and guaranteeing equal opportunities in selection, training, and promotion, while ensuring a workplace free from any 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**! 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