Date: 24 nov. 2021

Lieu: Saint-Ouen, France

Entreprise: Alstom

The Railway industry today is characterized by both a strong and sustained growth across the world. The trends that drive this are well known:  environmental challenges, population growth, urbanization and increasing demands for mobility.   With 6B€ of Sales and over 30,000 employees based in nearly 60 countries, Alstom  develop & market the most complete range of systems, equipment and services offered today in the railway sector. Today we offer our customers solutions that feature a seamless blend of diverse technologies, ensuring optimal interfaces, along with flexible implementation and real synergy in innovation

Network & network security Architect

Based:  Saint-Ouen, France


Reporting to the Network Build Manager, you will be in charge to review and design Network and Network Security architectures and services in the context of new business, transformation and merge & acquisitions for the following scope:

  • Connectivity: LAN, SDWAN, Wi-Fi, DDI
  • Network Security: Firewall, IDS/IPS, Zscaler, VPN, ZTNA



Key Responsibilities & Accountabilities:

  • Cross domains:
    • Gather, collect and formalize business requirements from different representatives (business partners, clients, partners, projects, business solutions …)
    • Convert business requirements into technical specifications with formalized use cases
    • Write and review High and Low-Level Design documents ensuring interoperability, scalability and security compliance
    • Define and write Acceptance Testing plan.
    • Contribute to and validate project scoping
    • Ensure handover to projects teams and validate project progress gates.
    • Evaluate new technology solutions for an integration to the roadmap, in collaboration with Business Partners, Projects, Operations and architects members.
    • Support operations teams with regard to
      • P1 incidents acting as expert,
      • Non- Standard Service Requests fulfillment,
      • Capacity and availability Planning,
      • Service Catalog
      • Change Management
    • Develop, change and improve processes
    • Manage risks and opportunities
    • Delegate activities and manage contractors
    • Act as architect go to person for internal and external stakeholders like partners
  • New Business:
    • Review and validate proposed architectures
    • Define or update existing patterns to accelerate project delivery
  • Transformation:
    • Analyze technology and market trends
    • Own and share a technology vision
    • Define and drive the transformation roadmap
    • Define b-case and ensure value realization
    • Compare options, share pros and cons and arbitrate
    • Support some critical or strategic transformation projects
  • M&A:
    • Understand M&A milestones and expectations
    • Develop an M&A strategy and architecture to answer business needs
    • Ensure Day 1 readiness
    • Post Go Live support



  • Act as accountable for all Services while service is managed by third party and controlled by operations
  • Find the right tradeoff between make or buy and deliver or delegate/control
  • Manage changing priorities
  • Help the operation team to manage the Network services issues in order to ensure business continuity



To be considered for this role, candidate need to demonstrate the following skills experience and attributes:    

  • Graduated with an engineering degree, in Information Technology, you have more than 7 years of experience in Network and Network Security services, and more the 3 years as an architect
  • You have worked for global companies either as a service provider or as a customer, ideally both roles
  • You have very good technical skills on different topics and are curious
  • You demonstrate good communication, efficiency and ability to execute. You are result oriented and show intellectual curiosity and creativity. Leadership is key.
  • Fluent in English, you are eager to work with autonomy in an international environment and to face the challenges of the new Alstom
  • Be familiar with the following domains:
    • DDI (DNS, DHCP, IP Plan)
    • IDS/IPS : McAfee
    • Remote access: VPN, ZTNA
    • Cloud Network (ZSCALER, AZURE)



Why Work  for Us?  At Alstom Transport, we offer you the opportunity to unleash your potential and reinvent yourself. As a future employee, you will have a unique opportunity to drive our organization forward, while continuing to build your career and contribute to the expanding growth of the global railway industry. More about Alstom Transport: