Job Summary: We are seeking a senior engineer with experience in TCMS and railway functionality for an Embedded Software project in San Sebastián, reinforcing the software team throughout the V-model development lifecycle. Key Highlights: 1. Participate in an Embedded Software project in a hybrid model. 2. Be part of a team working on digital technologies and software. 3. Opportunities for continuous professional growth and development. San Sebastián TCMS Software Engineer (F/M) \- San Sebastián 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 think beyond convention, delivering unique R\+D and engineering services across all industry sectors. Join the team and advance your career at a company offering growth opportunities where you can make a difference—and where no two days are ever the same. About the Role Are you excited to join the team and participate in an Embedded Software project in a hybrid model from San Sebastián? We are looking for a senior engineer with extensive experience in TCMS and railway functionality. What will you do in this project? The selected candidate will reinforce the software team and must therefore bring expertise in managing the entire V-model development lifecycle, particularly in requirements definition and architecture. They will also be responsible for new TCMS software projects. Your Profile To thrive in this role, you should be comfortable with: * An engineering degree. * More than 3 years’ experience developing Train Control and Monitoring Systems (TCMS), including defining functionalities, implementation, and system validation. * Proficiency in C and C\+\+ for embedded software development in railway systems. * Thorough knowledge of processes and techniques required by CENELEC 50128, ensuring compliance with safety and quality standards. * Knowledge of train functionality and operation, including systems such as propulsion and braking. * Ability to work in a multidisciplinary environment, collaborating with departments such as engineering, testing, and quality. * Minimum English level: C1. We value all applications. We offer a wide range of training—both in-person and online—including certifications. Even if you don’t meet 100% of the desired qualifications, we’d love to meet you! Candidates holding a disability certificate will be positively considered, in line with our inclusion and diversity policy. Our commitment to inclusion and equal opportunity is reflected in our Equality Plan and Code of Ethics, which guarantee professional development for all employees and equal opportunity in recruitment within a discrimination-free environment—regardless of ethnicity, nationality, social origin, age, sexual orientation, gender expression, religion, or any other personal, physical, or social circumstance. **What you’ll love about working here:** We offer a comprehensive set of Development and Work-Life Balance measures, including, among others: * A uniquely supportive work environment highly valued by our professionals in periodic evaluations. * Wellbeing HUB \- Includes policies and initiatives for physical health (Wellhub) and mental health. * 24 vacation days \+ 2 personal days \+ December 24 and 31 \+ option to purchase up to 7 additional vacation days per year. * Continuous learning: access to MyLearning, Capgemini University, Digital Campuses, and Professional Communities. You’ll also have access to platforms such as Coursera, Udemy, Pluralsight, Harvard Manager Mentor, and Education First for language learning (English, French, German, etc.)—among others! * FlexAbroad: possibility to work remotely from another country for up to 45 days. Why Capgemini? Capgemini is a global leader in transforming and managing clients’ businesses by harnessing the full power of technology. Guided by our purpose—to achieve an inclusive and sustainable future through technology and the energy of those who build it—we are a responsible, diverse company and an international leader in IT and engineering services, with over 360,000 professionals across more than 50 countries. With a strong 55-year heritage and deep industry expertise, clients trust Capgemini to address their full business needs—from strategy and design to operations—powered by the fast-evolving worlds of cloud, data, AI, connectivity, software, platforms, and digital engineering. In 2022, the Group reported global revenues of €22 billion. **Rewrite your future. Join the team!** www.capgemini.com/es\-es \#LI\-CD19 Ref. code 400500\-es\_ES Posted on 28 Jan 2026 Experience level Experienced Professionals Contract type Permanent Location San Sebastián Business unit Engineering and R&D Services Brand Capgemini Engineering Professional communities Software Engineering