Senior Global Network Engineer - Multi-Site & Cloud

The French Sourcer; Genf; On-site; CHF 120,000 - 170,000; Full time

Job summary

The French Sourcer in Geneva is seeking a Senior Network Engineer to design, deploy, and operate a multi-site network spanning offices, data centres, and cloud environments. You will manage LAN/WAN/WLAN, firewalls, VPNs, and secure remote access while ensuring availability and security across global operations.

Ideal candidates have 8+ years of enterprise networking experience, strong certifications, and proven ability to lead projects with external providers.

Qualifications

• 8+ years of experience in enterprise network engineering and administration.
• Strong knowledge of routing, switching, LAN, WAN, and wireless technologies.
• Experience designing and operating networks across multiple sites.
• Cloud-integrated and hybrid network environments experience.
• Strong knowledge of firewalls, VPNs, intrusion detection and prevention, and secure remote access.
• Experience troubleshooting complex third-level network incidents.
• Understanding of high availability, capacity planning, disaster recovery, and lifecycle management.
• Experience leading network projects and coordinating external service providers.
• Familiarity with IT service management and enterprise architecture standards.
• Professional-level networking certification, with advanced certification considered an advantage.
• Ability to work autonomously and communicate clearly with stakeholders.
• Availability to participate in an on-call rotation.

Responsibilities

• Designing, deploying, and maintaining network infrastructure across international offices and data centre environments
• Managing LAN, WAN, WLAN, routing, switching, and secure remote connectivity
• Supporting hybrid environments spanning on-premise infrastructure and cloud networking
• Maintaining next-generation firewalls, VPN gateways, and network security controls
• Monitoring network availability, performance, capacity, and security
• Acting as the final escalation point for complex network incidents and third-level support
• Investigating connectivity and performance issues across sites, providers, systems, and cloud environments
• Planning network capacity, hardware replacement, and infrastructure lifecycle activities
• Contributing to disaster recovery and business continuity planning
• Leading network projects from technical design through implementation and operational handover
• Working with cybersecurity and platform engineering teams on shared infrastructure requirements
• Managing telecommunications providers, external service partners, and associated service levels
• Maintaining network architecture, configurations, operating procedures, and technical documentation
• Participating in an on-call rotation for critical infrastructure

Skills

Routing & Switching

LAN / WAN / Wireless

Security & VPNs

Cloud networking

Network incident troubleshooting

Project leadership

External service coordination

On-call readiness

Education

Networking certification

Job description

The French Sourcer in Geneva is seeking a Senior Network Engineer to design, deploy, and operate a multi-site network spanning offices, data centres, and cloud environments. You will manage LAN/WAN/WLAN, firewalls, VPNs, and secure remote access while ensuring availability and security across global operations.

Ideal candidates have 8+ years of enterprise networking experience, strong certifications, and proven ability to lead projects with external providers.