Frontend-Developer (m/f/d) Mobility Business

Siemens España; Comunidad Valenciana; Hybrid; EUR 38,000 - 48,000; Full time

Job summary

Siemens Mobility S.L.U. is seeking a Frontend-Developer (m/f/d) for the Mobility Business in Spain. You will join the Sqills team and help build S3 Passenger, a global ticketing platform for public transport operators.

You will work with TypeScript, React, and Go in an agile, international environment. The role demands mid-level professional experience, strong collaboration, and a passion for scalable web solutions. Hybrid work and travel opportunities are available.

Qualifications

• Bachelor's degree in CS/ICT or equivalent practical experience.
• Solid experience with modern web development using TypeScript, React, and Go.
• Good understanding of software engineering best practices including CI/CD.
• Fluency in English with willingness for occasional international travel.

Responsibilities

• Develop and maintain frontend components using TypeScript and React.
• Collaborate with global teams to implement features for the S3 Passenger platform.
• Write clean, testable code following modern industry standards.
• Investigate issues and contribute to design decisions.
• Support international rollout and performance improvements.

Skills

TypeScript

React

Go

Education

Bachelor's degree or equivalent

Job description

Frontend-Developer (m/f/d) Mobility Business

529002

10-Nov-2026

Mobility

Research & Development

SIEMENS MOBILITY, S.L.U.

Mid-level Professional

Create the digital platforms that transform how millions of passengers book and travel worldwide.

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 Sqills (part of our Siemens Mobility Software business unit) at our Software Development Center in Spain, you will help build S3 Passenger—a cutting-edge global ticketing and reservation platform for public transport operators. Collaborating closely with agile international teams from HaCon and eos.uptrade, your code will directly enhance the passenger experience and operational efficiency across the globe.

You’ll make a difference by

• Developing and maintaining scalable, robust software components using TypeScript, React, and Go.
• Participating in the design and creation of innovative features and capabilities for the S3 Passenger platform.
• Writing clean, maintainable, and efficient code in line with modern industry standards and best practices.
• Collaborating with cross-functional, international teams to translate complex requirements into high-quality software delivered on time.
• Identifying and troubleshooting technical issues, providing creative solutions to complex problems, and staying ahead of the latest web development trends.

Your success is grounded in

• A Bachelor’s degree in Computer Science, ICT, Business Intelligence, Technical Management, or equivalent practical experience.
• Solid experience in modern web development, specifically working with TypeScript, React, and Go.
• Good understanding of software engineering best practices, including unit testing and CI/CD pipelines.
• Strong analytical and creative problem-solving skills, with the ability to work both autonomously and within agile teams.
• Fluency in English and willingness for occasional international travel (such as to the Netherlands).

You’ll thrive even more if you also bring

• Passion for public transport innovation and building high-traffic, global SaaS platforms.

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.