Lisbon Senior Network Engineer – Cisco ACI & Azure

Claranet Portugal

Lisboa

On-site

EUR 55,000 - 75,000

Full time

8 hours ago

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Job summary

Claranet Portugal is seeking a Senior Network Engineer to join the internal team in Lisbon. You will operate, configure and troubleshoot complex network fabrics, including Cisco ACI, Huawei switching, Palo Alto and Fortinet firewalls, and Azure networking services.

You will collaborate with the client ICT Squad, manage incidents, plan changes and maintain comprehensive documentation. Ideal candidates have 5+ years of enterprise networking experience, strong routing/switching knowledge, fluent

Qualifications

5+ years of experience in enterprise network engineering/operations.
Hands-on experience with Cisco ACI.
Solid experience with Huawei switching.
Experience administering Palo Alto and Fortinet firewalls.
Experience with Azure Networking and Security services.
Strong routing & switching knowledge (BGP, OSPF, VLANs, STP) and VPN technologies.
Fluent Portuguese and good English (written and spoken).
Interpersonal relationship and teamwork.
Proactivity, initiative and good analytical ability.

Responsibilities

Operate, configure and troubleshoot Cisco ACI fabrics (tenants, VRFs, bridge domains, EPGs, contracts, L3Outs).
Manage Huawei switching infrastructure (VLANs, STP, LACP, stacking, L3 routing).
Administer Palo Alto and Fortinet firewalls—security policies, NAT, VPNs, threat prevention profiles, HA and firmware lifecycle.
Operate and evolve Azure network components (VNets, peering, VPN Gateway/ExpressRoute, NSGs, Azure Firewall, Application Gateway/WAF, Private Endpoints).
Act as L2/L3 escalation point for network and security incidents; perform root cause analysis and fixes.
Plan, document and execute network changes per ITIL processes and change windows.
Monitor network health and capacity (Zabbix/Grafana).
Maintain up-to-date network diagrams, configurations, procedures and knowledge articles.
Collaborate with client ICT Squad on network/security projects.