Location: Madrid, M, ES Professional Profile: Defense and Security Required Experience: Over 2 years of experience Work Modality: Hybrid At Indra, we are seeking a Product Test and Validation Engineer for strategic projects in Voice and Remote Control Radio Communication Systems. **Join our team on strategic Defense and Communications projects!** At Indra, a leader in technological solutions for defense and security, we are looking for a Telecommunications Engineer to join our Critical Communications team, participating in strategic projects that ensure secure connectivity in land, naval, and airborne environments. Did you know Indra leads critical communications for defense and security? Within our Communications area, we design and develop advanced solutions that guarantee secure and reliable connectivity in land, naval, and airborne environments. We work with cutting-edge technologies in tactical systems, satellite links, and interoperable networks for strategic missions. **What will you do?** * Execute functional and validation tests on VoIP systems. * Design test cases and generate comprehensive documentation (plans, procedures, reports). * Analyze networks and protocols (SIP, RTP, G.711) using tools such as Wireshark. * Implement test automation and ensure traceability throughout the entire lifecycle. * Collaborate on system integration and definition of test strategies. **What are we looking for in you?** Don’t worry if you don’t meet 100% of what we’re seeking. Go ahead—explore our offer and let us know what you can bring to the team! ✅ Experience (3–4 years) in testing and validation of communication systems. ✅ Knowledge of VoIP, SIP, RTP, SBC, Cisco, and network protocols. ✅ Proficiency with tools: Wireshark, Squish, Zephyr, Git, SVN, Jira, DOORS. ✅ Familiarity with PECAL methodologies and configuration management. ✅ Experience with Linux and Red Hat. **What we offer you** Stability and Future * ✨: Long-term projects at a leading defense company with over 50,000 professionals. Innovative Projects * : Cutting-edge technologies with national and international impact. Close-Knit Environment * : Direct communication and collaborative work. Flexibility and Work-Life Balance * : A hybrid model adapted to your pace. Career Development Plan * : Professional growth and continuous training (Open University, Udemy for Business). Exclusive Benefits * : Discounts on leisure, sports, and wellness. 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 alignment with our requirements. Initial Contact (5–10 min) * : If you receive a call from an unknown number, it’s our team! It’ll be a brief conversation to get to know you and address 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, short psychological and English proficiency assessments (if required) will be conducted. Offer and Onboarding * : If everything goes well, you’ll join our team and begin this new chapter together! **Estimated Timeline: 1–2 weeks.** *Our commitment is to foster respectful and dignified workplaces, support professional development of our staff, and ensure equal opportunity in recruitment, training, and promotion—providing a work environment 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 holistic HR management and the conditions we provide for our professionals.