Senior Network Engineer 80-100% (m/f/d)

10 July 2026
80 – 100%
Permanent position
Biel

Job summary

Join our team as a Senior Network Engineer, shaping networks! Enjoy a dynamic work environment with great benefits.

Tasks

Oversee and enhance ISP and datacenter networks' operations.
Design and implement firewall and security solutions effectively.
Manage DNS, load balancing, and connectivity issues efficiently.

Skills

Several years of experience in network or datacenter engineering required.
Deep knowledge of routing, switching, and firewall technologies needed.
Experience with automation tools like Ansible and Terraform preferred.

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About the job

You are at home in the data centre and want to design networks, not just operate them. As a Senior Network Engineer, you are responsible for the stable, secure and scalable operation of our ISP and data centre networks and contribute your knowledge to take architecture, automation and security to the next level.

This is what your job will be like:

Operation and further development of networks (Core, WAN, Overlay, NSX)
Design, implementation and operation of firewall and security solutions (Barracuda)
Responsibility for DNS, load balancing and connectivity topics
Automation and documentation of network environments
Close collaboration with data centre, cloud and security teams

What you should bring:

Several years of experience in network or data centre engineering
Deep knowledge in routing & switching, firewalls, VPNs, VLANs and overlay technologies
Experience with manufacturers such as Fortinet, Huawei, Aruba or Cisco
Know-how in DNS, load balancer or automation solutions (e.g. Ansible, Terraform)
Ideally experience in designing data centre networks or migrations
Knowledge of VMware NSX or cloud networks (Azure, AWS) is an advantage
Independent working, structured thinking and strong implementation skills

What makes your dream job:

Technically demanding projects with plenty of creative freedom
Collaboration with experienced engineers from various fields
Modern technologies, flat hierarchies and fast decision-making processes
Flexible and modern working conditions, cool benefits and personal development opportunities