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Salary
≈ $30k – $73k per year (Estimated)
Location
Hybrid (Tres Cantos, Spain)

Confirmed on the employer's own hiring board on Nov 3, 2026. First seen by Alion on Oct 27, 2026. Siemens scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Siemens is a German technology conglomerate founded in Berlin in 1847 by Werner von Siemens around a telegraph that indicated letters rather than Morse code. After a decade of divestments it now concentrates on industry, infrastructure, transport and healthcare, supplying factory automation and control systems, building and grid technology, trains and signalling, and the Teamcenter and NX design software acquired through a long run of software purchases. The Siemens Xcelerator platform ties hardware to software and digital twins, and the group retains a majority stake in the separately listed medical imaging company Siemens Healthineers.

Shape the future of sustainable and comfortable passenger mobility.

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 Rolling Stock team in Madrid, you will develop advanced air conditioning systems for next-generation rail vehicles. Your work will directly ensure maximum comfort, energy efficiency, and sustainability for passengers traveling on transit networks worldwide.

You’ll make a difference by

  • Developing and refining innovative HVAC concepts using advanced calculation and simulation tools.
  • Preparing precise technical specifications and milestone plans for both customer projects and R&D initiatives.
  • Guiding suppliers through the design, manufacturing, and testing of critical HVAC components.
  • Driving design-to-cost initiatives to ensure system efficiency and market competitiveness.
  • Organizing and supervising air-conditioning measurements and system optimizations directly on the vehicles.
  • Coordinating seamlessly with internal design and development teams to integrate HVAC systems into the train's architecture.

Your success is grounded in

  • A Degree in Mechanical Engineering, Vehicle Construction, or a comparable technical field.
  • Professional experience or solid theoretical knowledge in air conditioning and thermodynamics.
  • A proactive mindset with the ability to take full ownership of projects after a comprehensive onboarding.
  • Strong presentation skills to share results clearly with internal and external stakeholders.
  • Fluency in English and the willingness to travel occasionally to support global projects and suppliers.

You’ll thrive even more if you also bring

Specific experience in rail vehicle technology, refrigeration circuits, and associated industry standards.

Hands-on experience creating requirement specifications and basic construction knowledge.

Spanish language skills.

Even if you don't meet every single requirement, we encourage you to apply! We value potential, eagerness to learn, and diverse backgrounds.

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.

An inclusive environment where you can be your authentic self and truly belong, supported by dedicated teams and DEI learning resources.

A hybrid work model that gives you the best of both worlds: the energy of in-person collaboration and the flexibility of remote work.

A culture that values curiosity and guarantees continuous learning, offering personal and professional development opportunities for everyone.

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.

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

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