Senior Network Operations Engineer – Enterprise Infrastructure

Cyber Instincts AB; Lunds kommun; On-site; SEK 900,000 - 1,300,000; Full time

Job summary

Cyber Instincts AB in Lund, Sweden seeks an experienced network operations specialist for a long-term on-site assignment in Lund. You will manage a large-scale enterprise network spanning Cisco and HPE Aruba, ensuring stability, security and SLA adherence in a 24x7 environment.

Role focuses on hands-on configuration, monitoring, and coordination with IT teams and telecom providers. Start as soon as possible; on-site in Lund with 40h/week duties and a pre-assignment drug test.

Qualifications

• 10+ years of hands-on enterprise network operations experience.
• Strong command of Cisco switching/routing, including STP and VTP.
• Experience with HPE Aruba and Aruba SD-WAN is a plus.
• Hands-on Cisco Nexus experience and wireless infrastructure management.

Responsibilities

• Day-to-day administration of enterprise-scale Cisco and HPE Aruba networks.
• Configuring and maintaining HPE Aruba environments, including SD-WAN.
• Managing Cisco Nexus infrastructure and wireless networks (APs/controllers).
• Working with Cisco ISE, Prime, and DNAC for management and security.
• Drive incidents to resolution within SLA using ITIL processes (Incident, Problem, Change).
• Liaise with telecom providers on WAN/connectivity issues.
• Contribute to proactive failure detection and planned maintenance.

Skills

Cisco switching/routing

Nexus experience

HPE Aruba SD-WAN

Cisco ISE/Prime/DNAC

ITIL/ServiceNow

Troubleshooting

Independent problem solving

WAN knowledge

Tools

ServiceNow

DNAC

Prime

ISE

Job description

• Hands-on Cisco Nexus experience

Lund, Sweden | On-site | Long-term assignment (Oct 2026 – Sep 2027, strong extension potential)

About The Role

We're looking for an experienced network operations specialist to join a large-scale Infrastructure Services team for one of our clients - a global industrial technology company based in Lund. This is a hands-on, operationally critical role: you'll be the person keeping a sprawling enterprise network environment stable, secure, and running, across Cisco and HPE Aruba infrastructure.

You’ll work close to the metal - configuring, monitoring, troubleshooting - while also coordinating with internal IT teams and external telecom providers to keep everything within SLA. If you like solving real problems in a live, 24x7-critical environment rather than just writing documentation about them, this is built for you.

What You’ll Actually Be Doing

• Day-to-day administration of enterprise-scale Cisco and HPE Aruba networks
• Configuring and maintaining HPE Aruba environments, including SD-WAN
• Managing Cisco Nexus infrastructure
• Keeping switches, routers, and wireless infrastructure (controllers + APs) healthy and fast
• Working inside Cisco ISE, Prime, and DNAC for network management and security
• Driving incidents to resolution within SLA, using ServiceNow and ITIL-based processes (Incident, Problem, Change, Knowledge Management)
• Liaising directly with telecom providers on WAN/connectivity issues
• Contributing to proactive failure detection and planned maintenance, not just firefighting

What We’re Looking For

• 10+ years of hands‑on enterprise network operations experience
• Strong command of Cisco switching/routing, including STP and VTP
• Solid WAN technology knowledge
• Practical experience with HPE Aruba - Aruba SD-WAN experience is a strong plus
• Hands‑on Cisco Nexus experience
• Comfort administering Cisco wireless infrastructure (controllers, APs)
• Familiarity with Cisco ISE, Prime, and DNAC
• ITSM experience, ideally with ServiceNow, and solid ITIL process knowledge
• A track record of resolving network incidents against defined SLAs
• Strong, independent troubleshooting instincts

Nice to have

• Scripting/automation skills (Python a plus)
• Experience in large, complex enterprise network environments
• Background in 24x7 network operations or infrastructure support

Practical details

• Location: On‑site in Lund - this is not a remote role
• Workload: Full-time, 40h/week
• Start: As soon as possible
• Note: A pre-assignment drug test is required
• Some flexibility across time zones/holidays may be needed given 24x7 coverage