Senior Network Engineer: ACI, Azure & Security Leader

Claranet limited

Lisboa

On-site

EUR 70,000 - 90,000

Full time

3 days ago

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Job summary

Claranet limited in Lisbon is seeking a Senior Network Engineer to join our internal team. You will operate, configure and troubleshoot Cisco ACI fabrics, Huawei switching, and firewall security in a fast-moving ICT environment.

The role requires hands-on experience with Azure Networking, BGP/OSPF routing, and strong collaboration with the client's ICT squad. Fluency in Portuguese and English is essential for this client-facing position.

Qualifications

5+ years in enterprise network engineering/operations.
Hands-on with Cisco ACI.
Solid experience with Huawei switching.
Experience administering Palo Alto and Fortinet firewalls.
Experience with Azure Networking and Security.
Strong routing/switching skills (BGP, OSPF, VLANs, STP) and VPNs.
Fluent Portuguese and good English.
Good interpersonal and teamwork abilities.
Proactive, initiative-taking with strong analytical skills.

Responsibilities

Operate and troubleshoot Cisco ACI fabrics (tenants, VRFs, EPGs, contracts, L3Outs).
Manage Huawei LAN switching (VLANs, STP, LACP, stacking, L3 routing).
Administer Palo Alto and Fortinet firewalls and security policies.
Operate Azure networking components (VNets, peering, ExpressRoute) and hybrid connectivity.
Act as L2/L3 escalation for network incidents; perform root-cause analysis.
Plan and execute network changes per ITIL and client change windows.
Monitor network health and capacity with Zabbix/Grafana.
Maintain up-to-date diagrams and knowledge articles.
Collaborate with client's ICT squad on network/security projects.