Job Summary: Senior Systems Engineer for Systems Engineering and Verification & Validation activities in Air Defense projects. Key Highlights: 1. You will participate in the full lifecycle of air defense systems. 2. You will work with cutting-edge technologies in a collaborative environment. 3. A personalized career plan and continuous training through Open University and Udemy. **Location:**Madrid, MD, ES **Professional Profile:** D&S Engineering, Mobility and ATM **Required Experience:** More than 2 years of experience **Work Modality:** Hybrid **At Indra Group, we protect what matters most.** In Land Vehicles, we design and integrate advanced vehicles of varying complexity levels. Our purpose: to meet the highest requirements for protection, mobility, and power with next-generation mission systems, within a secure, efficient technological ecosystem committed to sustainability, full traceability, and end-to-end digitalization. As part of our positioning as a leading company in the defense sector, we aim to strengthen our team with a **Senior Systems Engineer** for Systems Engineering and Verification & Validation activities in **Air Defense** projects. **What will you do?** You will participate in the full lifecycle of air defense systems, working cross-functionally with design, integration, certification, and testing teams. Your main responsibilities will include: **1. Systems Engineering** * Analysis, definition, and **specification of complex systems**. * Development and management of **requirements**. * Design and validation of **system architectures**. * Modeling and documentation using **Enterprise Architect** or similar tools. * Advanced requirements management using **DOORS**. **2. Verification and Validation (V&V)** * Preparation of test documentation per development phase: **PDR, CDR, TRR, FDR**. * Specification of **system and product test requirements**. * Definition of **verification procedures**, acceptance criteria, and defect tracking. **3. Security and Certification** * Application of **CCN certification procedures**. * Alignment with the **National Security Scheme (ENS)**. * Knowledge of **CIS security**. * (Desirable) Knowledge of **OPSEC**. **4. Collaboration with Teams and Stakeholders** * Coordination with engineering, manufacturing, integration, and suppliers. * Participation in internal technical reviews and customer reviews. * Technical support during tests, demonstrations, and deliveries. **What are we looking for in you?** Don’t worry if you don’t meet 100% of the criteria—we’d still love to get to know you! **Minimum Requirements** * **Minimum 3 years of experience** in Systems Engineering within the defense or complex systems domain. * Experience in: + Full Systems Engineering processes. + Lifecycle of **Air Defense systems**. + System analysis and specification. * Advanced knowledge of: + **DOORS**. + **Test documentation generation per phase** (PDR/CDR/TRR/FDR). + **Test requirement specification** (3–4 years of experience). * Intermediate-level knowledge of: + ENS security. + CIS security. + System architecture definition (ATM). * **High-level English**. **Valuable Knowledge** * OPSEC. * Experience in mission-critical or air defense projects. **What we offer you** Stability and Future * ✨: Long-term projects at a leading defense company with over 50,000 professionals and strong financial security. Innovative and High-Impact Projects * : You’ll work with cutting-edge technologies, delivering impact both nationally and internationally. Close and Transparent Environment * : You’ll enjoy direct, fluid communication with managers and colleagues in a collaborative and open environment. * Autonomy: You’ll have the freedom to organize your work. Personalized Career Plan * : Designed to accelerate your professional growth and development. Continuous Training * : Through Open University and Udemy for Business (over 6,000 courses available for specialization!). Exclusive Well-being Discounts * : Enjoy benefits at gyms, restaurants, stores, leisure venues, and more as an Indra employee. Competitive Compensation and Flexible Benefits Plans * tailored to your needs. **What does our selection process look like?** Profile Review : We assess your experience and skills to determine whether you match our requirements. Initial Contact (5–10 min) * : If you receive a call from an unknown number, it’s our team! This will be a quick conversation to get to know you and answer any questions. Technical Interview * : You’ll meet the team, who will explain the project and daily tasks. We’ll also explore your technical knowledge. Additionally, brief psychological and English competency assessments may be conducted (if required). * HR Interview where you’ll learn about career plans, training, and social benefits. Offer and Welcome : If everything goes well, you’ll join our team and begin this new chapter together! Estimated Timeline: 1–2 weeks**.** *We are committed to fostering workplaces where people are treated with respect and dignity, promoting employees’ professional development and ensuring equal opportunities in recruitment, training, and promotion—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 Spain’s best employers, thanks to our comprehensive HR management and the conditions we provide to our professionals.