Manager de transition Réseau IP (H/F) - CDI

About the Position

Manager de transition Réseau IP (H/F) - CDI

• Contract Type: Permanent
• Location: Île-de-France, France
• Salary: EUR 60000 - EUR 75000 per year

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About the Company

Alten, a European leader in engineering and technology consulting, is seeking a Network IP Transition Manager (H/F) to join its teams in Île-de-France. You will support our major clients in their network transformation projects.

With over 53,000 employees worldwide, Alten is a key player in the modernization of network infrastructures. You will work on strategic projects such as migrating to advanced IP architectures, optimizing network performance, or securing critical infrastructures.

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Responsibilities

💻 Technical Environment:

You will work in a complex IP network environment, with the following technologies:

• IP Networks: BGP, OSPF, MPLS, VXLAN, IPv4/IPv6.
• Network Equipment: Cisco (Nexus, ASR, Catalyst), Juniper, Arista, or equivalents.
• Network Security: Firewalls (Palo Alto, Fortinet, Cisco ASA), VPN, ACL, segmentation.
• Cloud Networking: AWS (VPC, Direct Connect), Azure (Virtual Network, ExpressRoute), GCP (VPC, Cloud Interconnect).
• Automation: Ansible, Python, Terraform, or equivalent tools.
• Monitoring & Performance: SolarWinds, PRTG, Wireshark, or equivalent tools.

🎯 Main Missions:

1. Managing Network Transition Projects

• Define the migration strategy to new network architectures (e.g., transition to IPv6, data center modernization).
• Plan and coordinate transition activities (stages, resources, timelines).
• Identify risks and propose mitigation plans.
• Ensure communication with stakeholders (business, management, technical teams).

2. Designing and Optimizing Network Infrastructures

• Design network architectures tailored to business needs (high availability, scalability).
• Optimize network performance (latency, throughput, resilience).
• Secure infrastructures (firewalls, VPN, network segmentation).
• Integrate cloud solutions (hybridization, secure connectivity).

3. Managing Migrations and Deployments

• Supervise migrations (e.g., equipment replacement, protocol transition).
• Coordinate testing (configuration validation, functional acceptance).
• Ensure service continuity during transitions (rollback plans, backups).
• Document new architectures and associated procedures.

4. Automation and Continuous Improvement

• Automate network tasks (configuration, deployment) with Ansible, Python, or Terraform.
• Optimize change management processes (e.g., integration with ITSM).
• Propose improvements to reduce costs and enhance performance.
• Ensure best practices (ISO standards, vendor recommendations).

5. Collaboration and Training

• Work with technical teams (networks, security, cloud) to align projects.
• Train teams on new architectures and tools.
• Lead workshops to raise awareness of network issues (e.g., security, performance).
• Participate in technical reviews to validate architectural choices.

6. Technological Vigilance and Innovation

• Monitor technological developments (e.g., SD-WAN, SASE, 5G).
• Evaluate new solutions to modernize infrastructures.
• Participate in training to maintain a high level of expertise.

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Requirements

🔍 Profile Sought:

• Engineering degree or Master's 2 in networks, telecommunications, or computer science.
• Minimum of 9 years of experience in network project management or IP infrastructure administration.
• Expertise in network protocols (BGP, OSPF, MPLS, VXLAN).
• Proficiency with Cisco, Juniper, or equivalent equipment.
• Experience in network migration (e.g., transition to IPv6, data center modernization).
• Knowledge in automation (Ansible, Python, Terraform).
• Professional English for working in an international environment.
• Ability to manage complex projects and communicate with diverse stakeholders.

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We Offer

• Competitive salary
• Permanent contract
• Opportunity to work on strategic projects
• Professional development opportunities
• Dynamic and innovative work environment

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Apply now to join our team and contribute to our clients' network transformation projects!