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# ISM Software Architect

- **Company:** Alstom
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Computer-Aided Design, VoIP, C Sharp (Programming Language), Computer Programming, Dynamical Systems, Session Initiation Protocols, Software Architecture, Software Engineering, Software Requirements Analysis, System Testing, UML, Live Streaming, Software Coding
- **Published:** July 2, 2026
- **Apply:** https://es.indeed.com/viewjob?jk=93b97be53d4877aa

## About the Role

* Engineering degree
 * Strong programming experience in C# .NET
 * Knowledge of security systems (CCTV, streaming protocols, SIP, VoIP, Public Address, etc.)
 * Strong communication skills in English (written and spoken)
 * Ability to collaborate with distributed and cross-functional teams
 * Agile mindset with international orientation

How success is measured

 * Quality and robustness of software architecture and design
 * Compliance with requirements, standards, and processes
 * Effectiveness in collaboration and integration activities
 * Contribution to innovation, reuse, and continuous improvement

## Description

We're looking for an ISM Software Architect to design and develop software architectures that support critical rail systems and ensure safe, secure, and reliable mobility.
You'll work alongside people who take ownership, collaborate across functions, and contribute to systems that keep cities moving every day.

Your role, your impact

 * Contribute to ISM specifications and architecture with Program Development Managers, Design Authority, and System Engineers
 * Define software requirements, including functional, operational, interface, performance, safety, and cybersecurity aspects
 * Ensure requirements are testable and traceable across the development lifecycle
 * Design software architecture, components, interfaces, and dynamic system behaviour
 * Validate technical solutions through simulations and prototypes
 * Lead technical decisions: tools, methodologies (e.g., UML), languages, coding standards
 * Support integration (software/software and hardware/software) and verification activities
 * Contribute to system validation, testing, and long-term maintenance
 * Monitor technology evolution and promote reusable solutions and standardization
 * Ensure application of internal processes and contribute to continuous improvement


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