Senior Network Security Engineer

Senior Network & Security Engineer (Cisco, Firewalls, L2 L3)

Long-Term Contract | Lisbon (Hybrid: 1 day onsite, 4 days remote) - Start date: February 2026

We are looking for an experienced Senior Network & Security Engineer to join a highly skilled infrastructure team supporting critical business services. This is a long-term contract role, based in Lisbon, offering a flexible hybrid working model (one day per week in the office).

You will play a key role in the design, implementation, and operation of enterprise-scale network and security infrastructure, while also providing technical leadership across projects and day-to-day operations.

Key Responsibilities

• Design, plan, and implement network and security infrastructure supporting multiple business units
• Provide operational support for daily activities and incident resolution in complex environments
• Lead and contribute to infrastruc...