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NSI - Senior System & Network Engineer - FR/EN


Job description

To reinforce our teams, we are looking for a Senior System & Network Engineer speaking french & english.

Your main responsibilities:

  • Install, administer, and maintain services, servers and systems in operational condition (Windows, Linux, AD/AAD, MS Exchange Online, etc.)
  • Actively participate in the installation, administration, and maintenance of network components ("On premise" + "Azure Cloud")
  •  Provide support and incident resolution (Levels 2 and 3)
  • Ensure proper documentation of the information system (diagrams, technical operation manuals, procedures, runbooks, etc.)
  • Key player in projects
  • Drives innovative thinking and solutions
  • Communicates new concepts, techniques and best practices within the organization with consistent, maintainable, flexible, and cost effective solutions
  • Collaborates with other engineers to maintain and evolve solutions in the Cloud or On-Premise in a continuous improvement manner;
  • Administrates his technical environment (Backup, LAN, WAN, Network and server hardware, etc.)
  • Manages on all administration tasks in his technical environment (migration, deployment, rollout, etc.)
  • Ensures proper documentation of the information system (diagrams, technical operation files, procedures, processes, runbooks, etc.)
  • Contributes to monitoring and identifying IT department risks and security issues related to its infrastructure
  • Ensures knowledge transfer for business continuity and within the support team
  • Ensures ticket follow-up with team and users
  • Ensuring infrastructure availability through periodical on-call duty shifts

Job requirements

Your profile:

  • You have at least 5 years of experience as System & Network Engineer
  • Fluent in French & English
  • Concrete experience in Microsoft AD and AAD
  • Advanced knowledge in system administration; operating systems: Linux (RedHat, CentOS and Ubuntu) and Windows
  • Strong understanding of cloud-oriented and on-premise technical architectures (others like Amazon or Google is appreciated)
  • Extensive skills in Intune and Autopilot
  • Knowledge of:
    • Virtualized environments (VMware)
    • Backup or network level (FortiGate Firewalls, Cisco ASA, F5, CheckPoint, CommVault, etc.)
    • Switch management is useful and desired such as Alcatel
    • Messaging systems required: Exchange/Exchange Online + general knowledge in antispam and messaging security
    • Cloud-related technologies and containerization (Azure, Kubernetes, Docker)
    • Scripting languages: Bash, PowerShell, Python (other languages as an asset)
  • Will be considered as an advantage the knowledge of Terraform 
  • Soft Skills:
    • Strong interpersonal and entrepreneurial skills
    • Professional communication and behaviour in all interaction
    • Proactive, able to challenge the model drawn up
    • Curious, concerned, and able to acquire new knowledge

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.



  • Luxembourg, Luxembourg, Luxembourg


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  • Luxembourg, Luxembourg, Luxembourg