Senior Network Engineer (Enterprise Infrastructure) - GENEVA

Gramian Consulting; Genf; Vor Ort; CHF 90.000 - 120.000; Vollzeit

Zusammenfassung

Gramian Consulting is seeking a Network Engineer in Geneva, Switzerland, for a permanent full-time position. The role includes designing and maintaining enterprise networks, managing network infrastructure, and providing technical support.

Candidates should have over 8 years of experience in enterprise network engineering, expertise in Cisco and HPE networking solutions, and be fluent in French and English. A CCNA certificate is mandatory.

Qualifikationen

• 8+ years of experience in enterprise network engineering.
• Hands-on experience with Fortinet firewalls and network security technologies.
• Experience designing and supporting Microsoft Azure networking environments.

Aufgaben

• Design, implement, and maintain Cisco/HPE enterprise networks.
• Lead the evolution of hybrid network architectures.
• Manage the lifecycle of network infrastructure.

Kenntnisse

Cisco networking solutions

HPE Aruba networking solutions

Fortinet firewalls

Microsoft Azure networking

Routing and switching

Network security

Fluent in French

Fluent in English

Ausbildung

CCNA certificate

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

Jobbeschreibung

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