Senior Network & Security Engineer - Hybrid On-Prem & Cloud

Altia; København; On-site; DKK 600,000 - 900,000; Full time

Job summary

Altia in Copenhagen is seeking a Network & Security Engineer to design, operate and secure enterprise networks across on‑prem, cloud and hybrid environments. You will collaborate with systems and cloud teams to ensure secure, resilient connectivity between on‑premises and Azure/AWS, implement firewall and NAC controls, and contribute to future HCI readiness.

The role demands 5+ years in network engineering, strong English, Linux administration, and a focus on security, availability and incident

Qualifications

• At least 5 years of professional experience in network engineering roles.
• Fluent English (C1), both written and spoken.
• Linux infrastructure administration.
• LAN, WAN, and VPN networks including on-premises systems, Azure, and AWS.
• Firewall, NAC, and network segmentation management.
• Secure remote access solutions including VPN management.
• Monitoring of network performance, logs, and incident detection.
• Disaster recovery in on‑premises and cloud environments.
• Integration with cloud services such as Azure ExpressRoute and AWS VPCs.
• Future HCI planning and network topology design.

Responsibilities

• Design, operate and secure LAN, WAN and VPN services.
• Manage firewalls, NAC, and segmentation policies.
• Collaborate with systems and cloud teams to ensure safe data flows.
• Monitor network performance, security logs and incidents.
• Plan for disaster recovery and high availability across on‑prem and cloud.
• Design for future HCI readiness and network topology.

Skills

Network engineering

Security engineering

LAN/WAN/VPN

Linux administration

Cloud integration

Firewall management

NAC

Incident monitoring

Disaster recovery

Azure

AWS

Tools

Azure

AWS

Linux

VPN

Firewalls

Azure ExpressRoute

AWS VPCs

Job description

Altia in Copenhagen is seeking a Network & Security Engineer to design, operate and secure enterprise networks across on‑prem, cloud and hybrid environments. You will collaborate with systems and cloud teams to ensure secure, resilient connectivity between on‑premises and Azure/AWS, implement firewall and NAC controls, and contribute to future HCI readiness.

The role demands 5+ years in network engineering, strong English, Linux administration, and a focus on security, availability and incident