Expert Réseaux WAN
No salary listed
Expert
Master's
Colomiers, France
HybridTélétravail possible jusqu’à 2 jours par semaine selon les missions.
IT OperationsNetwork Engineering & Administration
About the job
Requirements
- At least 10 years of professional experience in a similar role.
- Operational English proficiency.
- Technical knowledge of IP, LAN, and WAN networks, information-system security, and systems.
- Knowledge of static routing, BGP, OSPF, and MPLS protocols.
- Knowledge of UDP and TCP communication protocols, including multicast and unicast.
- Knowledge of traffic-flow analysis.
- Knowledge of Juniper, Cisco, and HP equipment.
- Autonomy, rigor, pragmatism, and strong customer-service and client-relationship skills.
Responsibilities
- Perform technical network and/or security tasks for recurring contract activity and manage and monitor specific projects.
- Apply WAN network expertise to understand issues and respond appropriately to client requests.
- Support the Transverse Technical Manager and serve as backup for the role's cross-functional activities.
- Lead the Single Point of Contact service desk, which includes a representative from each team (STOWAN, ITRLAN, ITRNET, and ITRSYS).
- Provide Level 2+ and Level 3 network and security operational maintenance and technical support.
- Write technical documentation and procedures.
- Report regularly to the project lead and update tracking and internal operating tools, including Redmine, resca, and workload tracking.
- Attend operational-maintenance, project-monitoring, and client or project meetings.
- Create patches and perform unit and functional tests in a laboratory.
- Monitor projects in collaboration with project-management-assistance teams.
- Follow client processes for document templates, document management, and storage organization.
- Provide advice and expertise internally and to the client, and proactively propose solutions.
- Maintain an overall view of the client's network architecture in line with its network and telecommunications strategy.
- Understand operational-maintenance activities and be responsible for cross-functional technical investigations prioritized by the client or its project-management-assistance teams.
- Act as a client interface and privileged contact for cross-functional operational-maintenance topics, ensuring communication among stakeholders.
- Provide relevant technical responses, communicate and report task progress, and update action tracking.
- Update the documentary section of the register file and promptly alert and share information with the Team Leader.
- Coordinate recurring activities and external entities, particularly project-management-assistance and project-management-execution teams on cross-functional topics.
- Act as the entry point for new projects, attend launch meetings to gather information and answer initial questions, then activate the relevant team.
- Track FURs and write impact-analysis notes identifying affected network-system configurations.
- Ensure teams follow the established quality checklist and delivery process before deliverables are sent to sites and the client authority.
- Ensure configuration references are maintained and accurate by verifying that the responsible person followed the expected process.
Desired Qualifications
- Juniper certifications such as JNCIA or JNCIS; Cisco CCNA; Fortigate NSE4; or Stormshield CSNA.
About the company
Sopra Steria provides consulting, digital services and solutions to help large organizations transform their business through technology. Its offerings cover strategy, systems integration, cloud, cyber security, software development, and managed services, designed to be delivered end to end—from assessing needs and designing a plan to implementing and operating IT systems. The company combines deep knowledge of many industries with a collaborative approach to tailor projects to each client and to deliver measurable, sustainable improvements in performance. Differentiators include its European scale (about 51,000 employees across roughly 30 countries), broad scope—from strategy to operation—and emphasis on practical outcomes that help clients stay competitive. The group’s goal is to put digital to work for its clients in a way that creates a positive, more productive future for all stakeholders.
Company Size
10,001+
Company Stage
IPO
Headquarters
Paris, France
Founded
1968
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Simplify's Take
What believers are saying
- H1 2026 revenue reached €2.959 billion, with underlying organic growth accelerating to 5.3% in Q2.
- Operating margin on business activity rose to 9.6% in H1 2026, supporting 2026 guidance.
- Starion, Nexova, Uavia, and Digital Product Simulation expand space, cybersecurity, drones, and PLM capabilities.
What critics are saying
- Sopra Steria’s February 2026 UK lawsuit against DWP keeps Capita procurement disputes hanging until 2028.
- The SFT program’s 2026 conclusion removes roughly two growth points, pressuring reported organic growth.
- Heavy exposure to public-sector and defense contracts concentrates revenue risk if procurement shifts or budgets tighten.
What makes Sopra Steria unique
- Sopra Steria pairs sovereign AI, edge computing, and Red Hat across Europe, September 2026.
- Its defence, security, and space vertical delivered 13% of 2025 revenue and deepens strategic autonomy.
- CIMPA’s Digital Product Simulation acquisition adds PLM simulation depth for Dassault 3DEXPERIENCE industrial clients.
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Benefits
- Remote Work Options
- Flexible Work Hours
- Health Insurance
- Paid Vacation
- Paid Holidays
- PTO/vacation
- Unlimited Paid Time Off
- Flexibility in schedule