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Software Designer Date: 18 Feb 2026
Company: Alstom
Leading societies to a low carbon future, Alstom develops and markets mobility solutions that provide the sustainable foundations for the future of transportation. Our product portfolio ranges from high-speed trains, metros, monorail, and trams to integrated systems, customised services, infrastructure, signalling and digital mobility solutions. Joining us means joining a caring, responsible, and innovative company where more than 70,000 people lead the way to greener and smarter mobility, worldwide
Your Mission
At Alstom’s Development Center in Charleroi, our team of 200+ experts is at the forefront of developing next-generation railway signalling solutions, primarily focused on ERTMS (European Rail Traffic Management System).
As a Validation & Integration Engineer, you will be responsible for validating and integrating ERTMS railway signalling solutions at the system level.
Key Responsibilities :
System Validation & Functional Testing
Ensure that our signalling systems comply with European railway standards and customer requirements
Define test strategies, identifying key validation scenarios based on functional requirements
Design, write, and execute test cases and procedures to verify system behavior
Conduct non-regression and delta/gap validation to ensure system consistency
Integrate various subsystems (NTG, DMS, MSS, etc.), ensuring seamless operation
Analyze system architecture gaps and address interface issues
Investigate anomalies, collaborating with design, software, and safety teams to implement corrective actions
Set up, validate, and maintain test environments, simulating real train conditions
Provide clear, structured reporting on test execution, system performance, and required improvements
Contribute to documentation review and audits, ensuring compliance with Alstom’s V&V methodologies
Stakeholder Collaboration & Continuous Improvement
Work closely with System Engineers, Software Developers, RAMS, and Project Teams to refine system validation approaches
Support customer investigations, troubleshooting field issues when necessary
Propose and implement improvements to test strategies, tools, and methodologies
What We’re Looking For
Required Qualifications
Engineering degree (Master) in Computer Science, Automation, Electronics, Robotics, or related fields
Experience in system validation, functional testing, or integration in a safety-critical industry (rail, aerospace, automotive)
Key Skills & Technologies
Experience in Test and Integration activities for embedded or safety systems
Understanding of V-Cycle, Waterfall and Agile methodologies
Programming skills (Matlab/Simulink, Python, or equivalent)
Proficiency in requirement management and traceability tools
Strong analytical skills, attention to detail, and a problem-solving mindset
Nice-to-Have
Knowledge of railway signalling systems (ERTMS, CBTC is a plus)
Experience with SysML, UML, or system modeling tools
Familiarity with system architecture definition and interface management
Knowledge of system safety and cybersecurity principles
Languages
Fluency in English and French is required
Alstom is the leading company in the mobility sector, solving the most interesting challenges for tomorrow’s mobility. That’s why we value inquisitive and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable. Day after day, we are building an agile, inclusive and responsible culture, where a diverse group of people are offered opportunities to learn, grow and advance in their careers, with options across functions and geographic locations. Are you ready to join a truly international community of great people on a challenging journey with a tangible impact and purpose?
Equal opportunity statement:
Alstom is an equal opportunity employer committed to creating an inclusive working environment where all our employees are encouraged to reach their full potential, and individual differences are valued and respected. All qualified applicants are considered for employment without regard to race, colour, religion, gender, sexual orientation, gender identity, age, national origin, disability status, or any other characteristic protected by local law.
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