Senior Network Engineer - Routing & Switching (Hybrid)

A2It Tecnologia; Lisboa; Hybrid; EUR 45,000 - 60,000; Full time

Job summary

A2It Tecnologia is seeking experienced professionals to join a Communications Engineering team focused on managing and evolving enterprise network infrastructures. The role requires CCNP Enterprise certification, 5+ years in IP networks and data centers, and hands-on Cisco experience including Catalyst 6500, Nexus 7000, ASA, and ACI.

Hybrid work arrangement offered. Responsibilities include maintaining LAN networks, troubleshooting incidents, collaborating with internal users, performing

Qualifications

• Active CCNP Enterprise certification for at least 3 years.
• More than 5 years of proven experience managing IP networks and Data Centers.
• Hands-on experience with Cisco environments (Catalyst 6500, Nexus 7000, ASA, ASR, ACI).
• Strong knowledge of Routing & Switching, MPLS, VLAN, VPN, IPSec, TCP/IP, IPv4/IPv6, QoS, ACL, SD-WAN, and virtualization (VMware ESXi and Hyper-V).
• One of the four professionals must have proven experience managing and maintaining enterprise Wi‑Fi networks.

Responsibilities

• Manage and maintain LAN infrastructure and network equipment.
• Analyze, troubleshoot, and resolve network incidents.
• Provide support and collaborate with internal users to identify technical issues.
• Perform network changes and reconfigurations.
• Produce and maintain technical documentation and operational reports.
• Assess impacts and propose solutions to minimize operational risks.

Job description

A2It Tecnologia is seeking experienced professionals to join a Communications Engineering team focused on managing and evolving enterprise network infrastructures. The role requires CCNP Enterprise certification, 5+ years in IP networks and data centers, and hands-on Cisco experience including Catalyst 6500, Nexus 7000, ASA, and ACI.

Hybrid work arrangement offered. Responsibilities include maintaining LAN networks, troubleshooting incidents, collaborating with internal users, performing