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NSI – IT Infrastructure Network Engineer – FR/EN


Job description

To reinforce our teams, we are looking for an IT Infrastructure Network Engineer, speaking French & English.

Your main responsibilities:

  • Design and maintain Network equipment
  • Support all Long Products Network based on Cisco devices
  • Transform the LAN/WLAN/Routing to fit in the new business needs
  • Maintain and improve security devices based on Cisco ASA/Firepower and Cisco ISE
  • Deploy and maintain OT security device based on Fortinet
  • Manage VPN connections site to site and IPsec VPN with Cisco ASA and F5 Big IP APM
  • Maintain IP telephony and IP conferencing systems
  • Use the latest network available technology
  • Propose new Design which answer to new Business challenge
  • Provide solution for Service request following the design approved
  • Fix Network security incidents
  • Manage Network deployment projects (cabling, ordering, installation…)
  • Manage 3rd party contractor into Industrial areas
  • Provide support to Wintel and End User computing teams in order to fix incident
  • Follow ITIL process (incident, problem, change, CMDB…)
  • Provide a 24/7 support (On call duty)
  • Perform network monitoring to early detect problems and deploy preventive maintenance actions
  • Securing network systems by enforcing policies and monitoring access to them

Job requirements

Your profile:

  • You have at least 3 years of experience as a Network Engineer
  • French fluent, you have a very good level in English
  • Good knowledge of cisco products
  • ITIL knowledge is an asset
  • Good interpersonal and communication skills
  • Ability to work independently and an excellent team player
  • You know how to imagine and propose new solutions

If at the end of the recruitment process your application is successful, you will be asked for a criminal record.

What is offered 🤝 :

  • Take the opportunity to join our "NSI family", where human values remain at the heart of our priorities
  • Permanent contract
  • Training courses
  • Dynamic and innovative environment
  • Be in the position to open your career perspectives
  • Competitive salary package

If you do not receive any answer within around 20 days, you should consider that we cannot proceed with your application



  • Esch, Esch-sur-Alzette, Luxembourg


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  • Esch, Esch-sur-Alzette, Luxembourg