Senior Network Engineer (Enterprise Infrastructure) - GENEVA

Gramian Consulting; Ferney-Voltaire; Sur place; EUR 97 932 - 130 576; Plein temps

Résumé du poste

Gramian Consulting is looking for an experienced network engineer to support an international investment organization with a strong emphasis on secure and scalable networking solutions.

The ideal candidate should have over 8 years in enterprise network engineering, fluent in both French and English, with expertise in Cisco and Fortinet technologies. The role requires managing a hybrid network architecture and providing technical support for complex networking incidents.

This is a full-time permanent position located in Geneva, Switzerland.

Qualifications

• 8+ years of experience in enterprise network engineering.
• Fluent in French and English.

Responsabilités

• Design, implement, and maintain enterprise networks across international locations.
• Lead the evolution of hybrid network architectures.
• Manage the lifecycle of network infrastructure and hardware refreshes.
• Provide third-line technical support for networking incidents.

Connaissances

Cisco enterprise networking

Fortinet firewalls

Microsoft Azure networking

Routing and Switching

Network security

Network automation

Formation

Professional networking certification (CCNP, JNCIP, Aruba, or equivalent)

Description du poste

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.

About the Role

Our client is a global investment organization managing a diversified portfolio across financial services, life sciences, healthcare, digital health, real estate, and infrastructure. Their technology team supports a highly secure, international environment where reliability, scalability, and operational excellence are critical to business success.

Contract

Permanent (CDI)

Commitment

Full-time

Location

Geneva, Switzerland

Notes

• Fluent French and English are mandatory
• Participation in an on-call rotation is required
• CCNA certificate mandatory

Key Responsibilities

• Design, implement, and maintain Cisco/HPE enterprise networks, Fortinet security infrastructure, and Azure cloud networking across multiple international locations
• Lead the evolution of hybrid network architectures spanning on-premises data centers and cloud environments
• Manage the lifecycle of network infrastructure, including capacity planning, hardware refreshes, and disaster recovery
• Configure and maintain firewalls, VPNs, and secure network services
• Provide third‑line technical support for complex networking incidents
• Collaborate with cybersecurity and infrastructure teams to improve network performance and security
• Manage relationships with telecommunications providers and external technology partners
• Ensure network monitoring, availability, and compliance with operational standards
• Contribute to infrastructure projects, architecture decisions, and continuous improvement initiatives
• Participate in an on-call rotation to support business‑critical systems

Requirements

• 8+ years of experience in enterprise network engineering
• Proven expertise with Cisco and/or HPE Aruba enterprise networking solutions
• Hands‑on experience with Fortinet firewalls and network security technologies
• Experience designing and supporting Microsoft Azure networking environments
• Strong expertise in routing, switching, WAN, LAN, WLAN, VPNs, and network security
• Experience troubleshooting complex enterprise network infrastructures
• Professional networking certification (CCNP, JNCIP, Aruba, or equivalent)
• Fluent French and English

Preferred Qualifications

• Advanced networking certifications (CCIE, JNCIE, or equivalent)
• Experience within financial services or highly regulated industries
• Experience with network automation and infrastructure‑as‑code
• Knowledge of enterprise monitoring and observability platforms
• Experience with disaster recovery and business continuity planning