Senior Network Specialist

Systematic; Denmark; On-site; DKK 900,000 - 1,100,000; Full time

Benefits offered by this job

Events program

Massages

Hairdresser

Sports clubs

Padel court

Canteen

ARoS access

Shopping discounts

Job summary

Systematic in Aarhus, Denmark, seeks a Senior Network Specialist to lead our shift to an automated, code-driven operating model for core infrastructure. You will design, build and operate the automation platform behind our network and firewall estate, moving from manual changes to a version-controlled, GitOps-style workflow.

You will own our network Source of Truth, design CI/CD and Git practices, run core networking and SDN infra, and mentor colleagues.

Qualifications

• Solid networking foundation with hands-on automation experience.
• Experience with Cisco and Palo Alto platforms.
• Infrastructure as code with Ansible or Terraform.
• Experience designing or operating CI/CD pipelines and Git.
• Scripting in Python or Jinja2 and API work.

Responsibilities

• Design, build and operate automation platform for network and firewall estate.
• Architect, build and maintain network automation for Cisco and Palo Alto.
• Define CI/CD processes, pull requests, automated checks, and gate deployments.
• Own datacenter and enterprise network, including SDN.

Skills

Networking fundamentals

Ansible

Terraform

Git

Python

Jinja2

CI/CD pipelines

Tools

Nautobot

Infrahub

Job description

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Senior Network Specialist – Core Infrastructure Platforms

We are moving our entire network and firewall estate to an automated, code-driven operating model, and we need someone who can help lead that shift. If Ansible, Terraform and Git workflows excite you more than console access, this role is built for you.

The job

You will help design, build and operate the automation platform behind our entire network and firewall estate, moving us from manual, device-by-device changes to a version-controlled, peer-reviewed, GitOps-style way of working. As a technical anchor in Core Infrastructure Platforms, you will shape how the whole Infrastructure department approaches network automation.

In short, you can look forward to:

• Driving network automation – help architecting, building and maintaining network automation for our Cisco and Palo Alto estate, replacing manual configuration with automated deployments.
• Owning our network Source of Truth – building and operating the authoritative, version-controlled model of our intended network state (think Nautobot or Infrahub).
• Designing CI/CD and Git – setting up pull requests, automated checks and review-gated deployments, and running the platforms
• Running core network and SDN infrastructure – owning and optimising our datacenter and enterprise network, including Software-Defined Networking

Joining the team

You will join our Infrastructure department, a small team coving everything infrastructure related. We are in the beginning of an ambitious shift from manual device configuration to a Source of Truth-driven, GitOps-style operating model, and you will have real influence over the architecture, tooling and practices we adopt next.

You will also act as a sparring partner and mentor to colleagues across Infrastructure, sharing what you build through documentation and peer review so good ideas do not stay with just one person.

Your qualifications

You have a solid networking foundation combined with hands-on experience in modern network automation. You are comfortable working across Cisco and Palo Alto platforms, treating infrastructure as code with tools such as Ansible or Terraform, building CI/CD pipelines and using Git. We are interested in the strengths you bring across the areas below. Your most important skills are:

• Solid networking fundamentals (L2/L3, BGP, OSPF, EVPN, VXLAN) with hands-on experience in Cisco (IOS/NX-OS) and Palo Alto/Panorama, plus exposure to SDN paradigms such as Cisco ACI.
• Hands-on experience with Ansible or Terraform applied to network infrastructure.
• Experience designing or operating CI/CD pipelines and using Git
• Scripting skills in Python or Jinja2, with comfort working with APIs.

On a personal level, you are a proactive team player who shares what you build, a problem solver with an eye for detail, and someone who would rather automate a problem away than solve it the same way twice.

Professional proficiency in English is required; Danish is an advantage.

Please note that you must be able to present a clean criminal record and have lived in a NATO and/or an EU country for the past seven years, as we work with security-classified projects.

Welcome to Systematic Aarhus

At our Aarhus office, you can look forward to joining our Employees Club, which offers nearly 100 events a year of both social and professional character. Here, you can take advantage of a range of on-site perks from physiotherapist-led massages and an in-house hairdresser to sports clubs, game tables and even our own padel court. Our canteen is a standout feature, serving a daily selection of delicious and healthy dishes. Beyond the office, you will also enjoy benefits like free ARoS +1 access and various shopping discounts.

Never stop developing

Systematic is uniquely people-centric, truly international and proudly rooted in Denmark with more than 1100 employees. Together, we write intelligent and innovative code to drive progress and improve lives. We develop IT solutions that make a real difference where it matters most. This is why we never stop developing. Here, there is room to be professional and personal. It is not just a place to work but a place to belong.