Job Summary: We are seeking a Hardware Engineer to participate in the electronic development of avionics equipment, contributing to the design of safety-critical electronic systems under DO-254 regulations. Key Highlights: 1. Participation in innovative projects in the aerospace and defense sector 2. Development of safety-critical electronic systems 3. Collaboration with world-class global teams Would you be interested in further developing your career as a **Hardware Developer** within a leading international technology company in the **aerospace and defense sector**, participating in innovative projects within a **highly specialized environment**, leveraging cutting-edge technology and collaborating with top-tier global teams? Oxigent Technologies is recruiting a **Hardware Engineer** to join an **electronic development project for avionics equipment**, based in **Seville and/or Madrid.** If selected, your mission will be to participate in the **development of safety-critical aerospace electronic systems**, complying with **DO\-254** regulations, and contribute to designing solutions for commercial and/or military **aircraft** within a highly demanding and technologically advanced environment. **What will be your main responsibilities?** * **Design and simulation of electronic circuits** for avionics embedded systems, including creation of **schematics** and **component selection** * Development of **PCB layout** and preparation of boards for manufacturing, along with technical documentation covering the hardware lifecycle under **DO\-254** regulations * Participation in **prototype testing** and support during key project milestones such as the PDR (Preliminary Design Review). To succeed in this role, **what qualifications do you need?** * **Bachelor’s degree in Telecommunications Engineering, Electronics, Mechatronics, or related fields** * **Minimum 3 years of experience** in hardware development for sectors including: **aerospace, satellites, combat vehicles, medical devices, or rail.** * Experience with **Altium**, Mentor, or Pads * Experience with requirements management tools: **JAMA**, DOORS * **Upper-intermediate English (B2\)** **What do we offer?** * **Indefinite-term contract** through Oxigent. * **Competitive salary aligned with your experience** (up to 50\.000\) * **Hybrid work model** (2 days remote, 3 days onsite) * **Training Voucher** to develop professionally in areas most relevant to you. * **Private health insurance.** * **Flexible compensation** applicable to health insurance, meals, transportation, childcare, and training. * **Gym and sports activity access app** across Spain with discounts. * And many more benefits! Join the Oxigent team! A company committed to sustainability and equal opportunities, where talent and technology know no gender. Location: Spain \- Sevilla, Spain \- Madrid Date: 01/04/2026 Salary: €47,000 Employment Type: Employee