Job Summary: We are seeking a Testing Engineer to join the ATP Testing team within the Embedded Products Development Department, contributing to sustainable mobility. Key Highlights: 1. Being part of a company developing cutting-edge transportation solutions 2. Working on high-technology international projects 3. Joining a solid corporate group with a forward-looking vision At CAF Signalling, we connect people safely, quickly, and comfortably to promote sustainable mobility at any distance. If you are passionate about innovation, motivated by working in international environments, and want your work to generate real impact on people, society, and the environment, this opportunity could be your next big step. At **CAF Signalling**, the technological subsidiary of the **CAF Group**, we drive the future of mobility by developing advanced solutions for rail transport. We create systems ensuring safe train operation, automatic train driving technologies, and intelligent tools optimizing transportation efficiency worldwide. Join a team combining cutting-edge engineering, global vision, and a clear purpose: transforming mobility to make it safer, more sustainable, and better connected. **About the Position** We are looking to hire a **Testing Engineer** at our Donostia office. You will join the ATP Testing team within the Embedded Products Development Department. **Essential Requirements** * Bachelor’s/Master’s degree in Electronic, Automatic, Telecommunications, Computer or Industrial Engineering. * **Approximately 5 years’ experience** in similar roles (recommended, not mandatory). * Experience in **testing and validation activities** for embedded systems. * Knowledge of **electronic communication bus protocols**. * Programming skills in **C\+\+ and Python**. **Preferred Qualifications** * Knowledge of onboard **ERTMS/ETCS functionality**. * Experience in **testing environments** for **safety-critical systems**. * Proficiency with **Git** as a version control system. * Experience with **safety-critical systems standards** (EN 50126, EN 50128 or others). * Familiarity with **IBM Rational DOORS**. **What You’ll Find at CAF Signalling** * **A close-knit and collaborative work environment** We care about your onboarding from day one. We want you to feel part of the team and integrate naturally and quickly. * **State-of-the-art technology** You’ll join a company developing cutting-edge transportation and mobility solutions. You’ll engage directly with innovations transforming the global railway sector. * **Genuine work-life balance** We champion flexibility: hybrid remote work model, flexible hours, and shortened workdays every Friday year-round and throughout summer. We want your professional and personal life to fit together seamlessly. * **Comprehensive benefits package** You’ll enjoy meal vouchers, remote-work allowance, and a complete flexible compensation plan (languages, medical insurance, childcare, transportation, etc.). You choose how to enhance your wellbeing. * **Continuous professional growth** As an expanding company, you’ll participate in high-technology international projects. You’ll collaborate with diverse clients, partners, and teams that accelerate your development. Moreover, we encourage training so you can progress toward your goals. * **Stability and future prospects** You’ll join a solid corporate group with over 100 years of history and a clear vision for the future of sustainable mobility. **What’s the hiring process like?** * **Initial conversation:** A brief call to get to know you and explain the role. * **First interview:** In-person meeting with the technical manager and HR to discuss responsibilities and address questions. * **Second interview:** More practical, to get to know each other better. * **Final decision:** We’ll inform you as soon as possible. **Would you like to be part of this challenge? Send us your application and let’s talk.****/** **Apply now**