Senior Network Engineer

4 days ago

Århus, Århus Kommune, Denmark TDC NET Full time 120,000 - 180,000 per year

Keep Denmark connected – from the heart of the network.
TDC NET is at the forefront of creating the digital infrastructure of the future, ensuring that Denmark remains a leader in technological development with the fastest fixed connections and the best mobile network available.

About The Job
Our team is committed to developing and maintaining our fully converged IP/MPLS network, providing a reliable foundation for the various services that our customers depend on – both now and in the future.

As a Senior Network Engineer with a focus on core network and security, you will play a key role in designing, developing, and optimizing the backbone of Denmark's digital infrastructure. You will primarily work with Juniper and Nokia platforms, ensuring stability, scalability, and security across our multi-vendor environment.

Your Responsibilities Will Include, Among Other Things

  • Design, implement, and maintain core routing infrastructure across Juniper, Nokia, and Cisco platforms.
  • Develop and optimize backbone architecture for high availability, scalability, and performance.
  • Implement and manage security controls, including routing security, DDoS protection, ACLs, and encryption mechanisms.
  • Conduct testing and validation of new hardware and software releases in lab environments before production rollout.
  • Collaborate closely with operations and development teams to ensure seamless integration of new features and services.
  • Troubleshoot complex issues affecting core and interconnect services.

"You will join a dedicated team responsible for our IP backbone, working closely with network planning and product management to align network capacity and capabilities with customer demands '' says Kaare Heinsen, Department Manager.

About You
The ideal candidate will tick most or all of the following:

  • Extensive knowledge of MPLS, Segment Routing, IS-IS, internet peering, multicast, and traffic engineering.
  • Hands-on experience with Juniper (MX series) and/or Nokia (7750 SR series); Cisco exposure is an advantage.
  • Proven experience with security protocols and best practices in service provider networks (e.g., RPKI, MANRS compliance, DDOS mitigation).
  • Familiarity with automation tools and methodologies (Python, Ansible, Netconf/YANG).
  • Strong documentation and troubleshooting skills, from lab to production.
  • Understanding of transmission technologies (WDM) is a plus.
  • Eligibility for security clearance requires EU citizenship or residence in the EU for at least seven years.

Contact
If you have questions about the position or want to know more about what it means to work at TDC NET, feel free to reach out to Kaare Heinsen, Department Manager, on

Location:
Sletvej 30, Aarhus or Teglholmsgade 1, Copenhagen

Process
We invite candidates for interviews on a continuous basis, so please apply as soon as possible and no later than
28 November
.

You can expect to hear from us within 3 weeks from the application date.

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