Senior Network Infrastructure Specialist

About Aeven 

Aeven is a Danish IT company specializing in digital infrastructure and IT operations. We help businesses build, manage, and secure their critical IT environments across data centers, hybrid cloud, networks, cybersecurity, applications, and SAP.

Aeven provides reliable and secure IT services for organizations where stability, performance, and security are essential, supporting customers across highly regulated and business-critical industries. 

We combine strong technical expertise with a collaborative, people-focused culture, giving our employees the opportunity to work on meaningful projects, develop their skills, and grow their careers. 

At Aeven, we believe that great technology starts with great people. 

Role Overview

We are looking for a Senior Operations Specialist with solid experience in the maintenance, troubleshooting, and operation of Nokia network equipment (routers & switches). You will be a central player in our 2nd‑line Captive team, responsible for ensuring high availability, stability and performance of mission‑critical infrastructure for our customer. 

A valid security clearance is a prerequisite for this position.

Your Responsibilities

• Daily maintenance of Nokia routers (7210, 7705, 7050) via NFM-P
• Perform 2nd/3rd-level troubleshooting on both IP and transport layers (BGP, OSPF/IS-IS, MPLS, LSP protection) and coordinate with vendors or other operators for swift resolution
• Plan and execute routine maintenance tasks (software upgrades, firmware patches, configuration changes, etc.). Participate in scheduled service windows (night/weekend) and ensure minimal service disruption. Produce risk analyses when required.
• Maintain documentation, guides, network diagrams and contribute to the preparation of monthly operational reports and other reporting artefacts
• Operate according to ITIL processes in the ITSM system ServiceNow
• Participate in the on-call rotation, including the standby team for critical network incidents

Your Qualifications and Experience

• Strong technical background in network infrastructure and the technologies listed above
• Hands-on experience operating Nokia routers/switches in large transport or service networks
• Proficiency with Nokia CLI
• Knowledge of protocols: BGP, OSPF, IS-IS, MPLS, L2VPN/L3VPN, Segment Routing
• Experience with management tools such as Nokia NFM-P, etc.
• Certified as a Nokia Network Routing Specialist / Service Router (or equivalent)
• ITIL certification or demonstrable experience in the field
• Any Cisco certifications (CCNP/CCIE) are a bonus
• Passion for operations with a highly analytical mindset and a structured way of working. Able to work under time pressure during critical fault-resolution situations together with other engineers and management
• Good communication skills and the ability to provide clear, timely information both in the ITSM tool and to the Incident Manager and NOC team during major incidents
• Willing to participate in the on-call rotation
• Fluent in Danish and English (written and spoken)
• Knowledge of optical DWDM infrastructure is an advantage, but not a requirement - willingness to develop expertise in this area is expected, with courses and training provided