C++ Software Engineer - Critical Railway Systems

Job ID

523669

Posted since

24-Sep-2026

Organization

Mobility

Field of work

Research & Development

Company

SIEMENS MOBILITY, S.L.U.

Experience level

Mid-level Professional

Job type

Full-time

Work mode

Hybrid (Remote/Office)

Employment type

Permanent

Location(s)

• Tres Cantos - Madrid - Spain

Code the technology that safely moves millions of people every day.

For over 160 years, Siemens Mobility has been a global leader, innovating transportation solutions that move the world. We lead the way in Rolling Stock, Rail Automation & Electrification, Turnkey Systems, Intelligent Traffic Systems, and comprehensive Related Services. Through digitalization, we empower operators worldwide to create intelligent infrastructure, enhance passenger experience, and ensure unparalleled availability. Join us in transforming Mobility Management, Turnkey Projects, Electrification, Mainline & Urban Transport, and Customer Services. If you're ready to make a real impact on a more connected and sustainable future, your journey starts here.

Your mission in our team Joining our Rail Signalling team, you will develop highly secure C++ software for critical railway control systems. Your code will directly impact the safety, reliability, and efficiency of global transit networks, shaping the future of mobility.

You’ll make a difference by

Developing and evolving C++ software components applying best engineering practices for SIL4 safety-critical systems.

Driving the complete software lifecycle: from specification, design, and coding to integration, validation, and customer support.

Exploring and implementing AI-based solutions to automate tasks, optimize testing, and boost engineering capabilities.

Collaborating with international, multidisciplinary teams on high-impact technological projects for leading railway operators.

Progressively taking on facilitation responsibilities within your Agile team, helping to remove impediments and foster collaboration.

Your success is grounded in

A Degree in Software Engineering, Computer Science, Telecommunications, Industrial Engineering, or a related field.

Solid experience or strong knowledge in C++ programming within demanding technical environments.

A strong foundation in object-oriented programming, software architecture, and robust solution design.

Fluency in both English and Spanish to collaborate effectively with distributed global teams.

A collaborative mindset, technical curiosity, and a genuine motivation to develop software with a real social impact.

You’ll thrive even more if you also bring

Familiarity with CENELEC EN50128 / EN50716 software life cycle standards and railway signaling systems.

Knowledge of requirements management tools like DOORS or Polarion.

Experience or strong interest in Agile methodologies, with the motivation to evolve into a Scrum Master role.

Don't meet every single requirement? Apply anyway! We value potential, growth, and diverse backgrounds.

Join us and let's shape the future of mobility together! Apply now.

What you can expect when joining You will be part of a team driving digital innovation, sustainability, and positive social impact through customer-oriented solutions.

A place where everyone can be their authentic selves and feel they truly belong. We offer dedicated Employee Resource Groups and DEI learning resources to foster an inclusive and supportive environment.

If we all thought the same, we would never think of anything new! That’s why we recruit great minds from all walks of life. We recognise that building a diverse workforce is essential to the success of our business, therefore we encourage applications from a diverse talent pool. We welcome the opportunity to discuss flexibility requirements with our applicants to encourage agile working and innovation. Flexibility is our main benefit. We combine remote and presence work because work-life balance and wellbeing are essential for our teams. We are convinced that stay at home allow us to focus on activities that need more time for concentration and being at the office enhance our creativity collaborating and learning from others.

Siemens aboga por la igualdad de oportunidades entre mujeres y hombres, así como en la Diversidad como fuente de creatividad e innovación. Contar con diferentes tipos de talento y de experiencias nos hace ser más competitivos y estar mejor preparados para responder con éxito a las demandas de la Sociedad. Por ello, valoramos a las candidatas y a los candidatos que reflejen la Diversidad que disfrutamos en nuestra Compañía y animamos la cobertura de puestos por mujeres y hombres en ocupaciones que se encuentren subrepresentadas.

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