Senior Network Engineer (Enterprise Infrastructure) - GENEVA

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 • 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 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