Senior Engineer in Quantum Key Distribution (QKD)

Description

Job Summary: We are seeking a Senior Engineer with experience in European and publicly funded projects to strengthen our European projects team in the R&D field of Defense and Security. Key Highlights: 1. Innovative and high-impact projects leveraging cutting-edge technologies. 2. Stability and long-term prospects within a financially secure industry-leading company. 3. A personalized career plan and continuous training to support your professional development. **Location:** Madrid, MD, ES **Professional Field:** Defense and Security **Required Experience:** More than 2 years of experience **Work Modality:** Hybrid At Indra Group, we protect what matters most. We lead the development of state-of-the-art technological solutions that reinforce national and international security. **Join our European projects team!** As part of our positioning as a leading company in the defense sector, we aim to strengthen our team with a European Projects Engineering Lead experienced in European and publicly funded projects, to join a strategic R&D initiative. **What are we looking for in you?** Don’t worry if you don’t meet 100% of the requirements. Go ahead — learn about our offer and tell us what you can bring to the table! : ✅ Senior Engineer with extensive experimental expertise in designing, implementing, and characterizing Quantum Key Distribution (QKD) systems. Strong command of Quantum Technologies, with emphasis on Quantum Communications — including precision electronic and optical instrumentation — and ability to technically manage corporate participation in European consortia and projects. The candidate must possess solid theoretical-practical knowledge of the foundational pillars of QKD: * Prepare and Measure: Discrete-Variable and Continuous-Variable protocols * Entanglement-based QKD: Protocols based on quantum entanglement. Hands-on laboratory experimentation capability is also required: * Optical systems and photonics * Control electronics and RF Additionally, strong interest in international project management (with particular focus on Space-based QKD) ✅ Availability to work in a hybrid model in Alcobendas. **What we offer you:** * **Stability and Future** **✨****:** Long-term projects at a leading defense company with **over 50,000 professionals**, backed by financial security. * **Innovative and High-Impact Projects** : You will work with cutting-edge technologies, delivering impact both nationally and internationally. * **Close and Transparent Environment** : Enjoy direct and fluid communication with managers and colleagues in a collaborative and open environment. * **Autonomy and Flexibility** : You’ll have the freedom to organize your work, with genuine work-life balance tailored to your rhythm. * **Personalized Career Plan** : Designed to accelerate your growth and professional development. * **Continuous Training** **:** via Open University and Udemy for Business (over 6,000 courses to help you specialize!). * **Exclusive Well-being Discounts** : Enjoy benefits at gyms, restaurants, stores, leisure venues, and more as an Indra employee. * **Competitive Compensation** and **flexible compensation plans** aligned with 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! 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). Interview with Talent Acquisition Team * : We want you to better understand our company — our values, career model, skills framework — so both you and our team can evaluate mutual fit. Offer and Onboarding * : If everything goes well, you’ll join our team and begin this new chapter together! **Estimated Process Duration: 2 weeks.** *Our commitment is to foster workplaces where people are treated with respect and dignity, promoting professional development of our staff and 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 the conditions we offer our professionals.