Senior Optical & IP Network Engineer II

Astreya; Dublin; On-site; EUR 51,000 - 63,000; Full time

Job summary

Astreya in Dublin, Ireland, is seeking a Network Operations Engineer II to own incidents end-to-end in a 24x7 NOC. You will troubleshoot optical (DWDM, CWDM) and IP networks, coordinate with vendors, and mentor junior engineers.

The role emphasizes runbooks, change execution, and collaboration with engineering teams. Requires 3–5 years in network operations, strong routing and optical knowledge, and ability to work rotating shifts.

Qualifications

• 3–5 years of experience in network operations in a NOC/carrier environment.
• Strong knowledge of IP routing and switching (BGP/OSPF, MPLS).
• Experience with multi-vendor equipment and CLIs.
• Ability to work 24x7 shifts and coordinate with vendors.

Responsibilities

• Escalate and resolve network incidents, owning from detection to restoration.
• Troubleshoot optical and IP networks across multiple domains.
• Coordinate with vendors and stakeholders for incident updates.
• Plan maintenance and network changes within change management.
• Document runbooks and contribute to post-incident reports.

Skills

Troubleshooting

Network operations

DWDM/CWDM

BGP/OSPF

IPv4/IPv6

MPLS

Monitoring/alarms

Education

Bachelor's degree in a technical field

Tools

Cisco

Juniper

Ciena

Nokia

Infinera

Job description

Astreya in Dublin, Ireland, is seeking a Network Operations Engineer II to own incidents end-to-end in a 24x7 NOC. You will troubleshoot optical (DWDM, CWDM) and IP networks, coordinate with vendors, and mentor junior engineers.

The role emphasizes runbooks, change execution, and collaboration with engineering teams. Requires 3–5 years in network operations, strong routing and optical knowledge, and ability to work rotating shifts.