Capgemini Engineering, a global leader in engineering services, brings together teams of engineers, scientists, and architects to help the world's most innovative companies unlock their potential and contribute to a better future. From autonomous vehicles to life-saving robots, our experts in digital technologies and software go beyond conventional boundaries by providing unique R&D and engineering services across all industries. Join the team and advance your career at a company offering growth opportunities, where you can make a difference and no two days are the same! At Capgemini Engineering, we are seeking Validation Engineers to join a hybrid project based in San Sebastián. What will you do in the project? Railway sector project. Main responsibilities include: * Develop communication protocols for TCMS systems, coupling, and communication networks. * Execute communication tests both in laboratory and real environments. * Validate train embedded software (TCMS) at different project stages: Origin Testing, Commissioning, and Factory and Track Testing. * Trace technical requirements with embedded software and rigorously ensure compliance. Your profile: * Experience with communication protocols (CAN, RS485, MVB or others). * Knowledge of programming with Python, Bash, and/or scripting in general. * Ability to validate embedded software and trace technical requirements. * Skill in clearly and structurally documenting tests and results. * Valuable experience in the railway sector or similar industrial environments. We welcome all applications. We offer extensive training opportunities, including in-person and online certification programs... Even if you don't meet 100% of the desired qualifications, we'd love to hear from you! Candidates with a disability certificate will be positively considered within the framework of our inclusion and diversity policy. Our commitment to inclusion and equal opportunities means we have an Equality Plan and an Ethical Code that guarantee professional development and equal opportunities in recruitment within a discrimination-free environment regarding ethnicity, nationality, social origin, age, sexual orientation, gender expression, religion, or any other personal, physical, or social circumstance. **What we offer?** * Permanent contract and stable project. * Salary commensurate with profile assessment. * Hybrid project with office presence in San Sebastián and occasional travel to other sites. * Childcare voucher (up to 600 b/a). * Meal allowance (1200€ b/a). * Technical, skills, and language training. * Real career development plan tailored to your role. **Why Capgemini?** Capgemini is a global leader in transforming and managing clients' businesses by harnessing the full power of technology. We are driven by the purpose of creating an inclusive and sustainable future through technology and the energy of those who develop it. We are a responsible and diverse company, a leading international provider of IT and Engineering services with more than 360,000 professionals in over 50 countries. With a solid 55-year heritage and broad industry expertise, clients trust Capgemini to address their entire business needs—from strategy and design to operations—powered by the fast-evolving world of cloud, data, AI, connectivity, software, platforms, and digital engineering. The Group reported global revenues of €22 billion in 2022. **Rewrite your future. Join the team!** **www.capgemini.com/es\-es** \#LI\-PG1 Ref. code 341281\-es\_ES Posted on 10 Oct 2025 Experience level Experienced Professionals Contract type Permanent Location San Sebastian Business unit Engineering and RandD Services Brand Capgemini Engineering Professional communities Software Engineering