Systems & Network Administrator

About the role

ITRS, a provider of IT observability solutions, is looking for a Systems & Network Administrator to own and run its mobile platform, network infrastructure and mobile device fleet in Paris. Reporting to the IT Manager, the role keeps the mobile platform and network running without interruption, with a hybrid schedule and on-site presence in the Paris office and local data-centers.

Key responsibilities

• Oversee and maintain the mobile platform, network infrastructure and mobile device fleet to ensure continuous operation.
• Design, build and document network infrastructure, from architecture and addressing through switching, routing, firewalls and wireless.
• Monitor platform and network health and find the root cause of incidents.
• Supervise the Operations Team for the mobile platform and train and guide the assigned apprentice.
• Support the IT Manager on-site in data-centers for hardware maintenance and troubleshooting.
• Provide Tier 1 to Tier 3 support to users and infrastructure, escalating or resolving issues at the right level.
• Deliver core IT projects and communicate daily in English with international teams.

Required profile

• Proven experience as a systems and network administrator with strong hands-on network expertise.
• Experience designing and building a complete network, not just maintaining an existing one.
• Experience managing a mobile platform and device fleet, including enrolment, configuration and security.
• Hands-on data-center experience (hardware installation, cabling, maintenance).
• Tier 1 to Tier 3 support experience.
• Experience supervising, training or mentoring others.
• Fluent English and fluent French; able to work on-site in Paris and travel to data-centers.

Required skills

• Networking fundamentals: TCP/IP, VLANs, routing, switching, firewalls, VPN and Wi-Fi.
• Mobile Device Management (MDM) tools (desirable).
• Cisco CCNA or CCNP certification (desirable).

What we offer

• Flexible hybrid working.
• Employee Assistance Programme, enhanced parental leave, travel insurance, life assurance and income protection.
• Referral bonus, Buy and Sell Holiday and training reimbursement.