# Senior Network Engineer (Enterprise Infrastructure) - GENEVA

> Gramian Consulting Group · Geneva, Switzerland · Full-time · Posted 2026-06-26

**Workplace:** on_site

**Department:** Recruiting - H

## Description

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.

We are looking for a **Senior Network Engineer** to lead the design, implementation, and optimization of a **global enterprise network infrastructure**. In this role, you will be responsible for architecting secure, high-performance networking solutions across on-premises and cloud environments while ensuring the availability, resilience, and security of mission-critical systems.

**CONTRACT:** Permanent (CDI)

**COMMITMENT:** Full-time

**LOCATION:** Geneva, Switzerland

**PROCESS:** Client Interview Process

**NOTES:** Fluent French and English are mandatory. Participation in an on-call rotation is required.

### 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 **3rd-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

## Apply

[Apply at Gramian Consulting Group](https://apply.workable.com/gramian/j/24178EF463/apply)

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