Network Engineer: SD-WAN, Security & VMware Expert

expleo-jobs-pt-en; Lisboa; On-site; EUR 32,000 - 52,000; Full time

Job summary

Expleo is seeking a network engineer in Lisbon to design, implement and support enterprise networking across Cisco and HP Aruba environments, including firewall and VPN capabilities. You will work with VMware networking and ITSM practices to ensure reliable service delivery.

Join the team to contribute to SD-WAN projects, LAN/Wi‑Fi refresh efforts and continuous improvement, with hands-on troubleshooting and comprehensive documentation in Confluence and ADO boards.

Qualifications

• Hands-on network engineering across Cisco and HP Aruba (switching, routing, wireless).
• Firewall experience with Fortigate and SonicWall.
• VPN configuration and troubleshooting.
• Experience supporting networking in VMware environments.
• Experience with ITSM processes (incident, request, change including CAB) and ADO boards.
• Strong troubleshooting and communication skills.

Responsibilities

• Administer, configure and support the client network across Cisco and HP Aruba switching and wireless.
• Manage SonicWall devices and Fortigate firewalls, including rules, policies, firmware and health.
• Support VPN connectivity (site-to-site and remote access) and troubleshoot connectivity issues.
• Support networking for the VMware virtualised environment.
• Complete start-of-day checks on network health, monitoring and alerts.
• Support the SD-WAN implementation, including site migrations, testing and handover into BAU.
• Support the LAN and Wi‑Fi refresh programmes: design input, configuration, cutover and validation.
• Take part in bi-weekly sprint meetings and deliver assigned ADO work items.
• Handle incidents and service requests raised through ITSM and tracked in ADO; own incidents through to resolution and RCA.
• Raise, document and implement network changes through CAB.
• Communicate clearly with technical and business stakeholders during incidents and changes.
• Escalate to and work with vendors when issues go beyond internal support.
• Automate repetitive configuration, backup and compliance checks where possible.
• Apply network security standards and least-privilege access.
• Maintain network diagrams, configurations and runbooks in Confluence.

Skills

Hands-on network engineering

Cisco

HP Aruba

Fortigate firewall

SonicWall firewall

VPN configuration

VMware networking

ITSM processes

ADO boards

Strong troubleshooting

Communication skills

Tools

Confluence

ADO boards

VMware

VPN troubleshooting tools

Job description

Expleo is seeking a network engineer in Lisbon to design, implement and support enterprise networking across Cisco and HP Aruba environments, including firewall and VPN capabilities. You will work with VMware networking and ITSM practices to ensure reliable service delivery.

Join the team to contribute to SD-WAN projects, LAN/Wi‑Fi refresh efforts and continuous improvement, with hands-on troubleshooting and comprehensive documentation in Confluence and ADO boards.