Senior network security engineer
3 semanas atrás
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 infrastructure projects, from design through delivery
Act as a senior escalation point for network and security incidents
Coordinate and lead a multidisciplinary team, ensuring high-quality delivery across network and security domains
Mentor and support junior engineers, promoting best practices and knowledge sharing
Collaborate closely with Dev Ops and automation teams to improve efficiency and reliability
Ensure operational excellence, stability, and security across the environment
Key Technologies & Experience
Network & Security
Firewalls: Check Point, Fortinet, Palo Alto
Management Platforms: Provider-1, Panorama, Forti Manager, Forti Analyzer
Load Balancers: F5 BIG-IP / BIG-IQ, A10
L2/L3 Networking:
Cisco ACI Fabric
Cisco legacy platforms (Nexus 7k, 5k, 2k, 9k, ASR 9k)
SSL VPN / SASE: Palo Alto SASE
Monitoring & Observability: Netmetrix, Grafana Automation & Tooling
Security policy automation using Tufin
Support for atomic function development for:
Cisco ACI Fabric
Palo Alto Panorama
F5
Close collaboration with Dev Ops teams on automation initiatives Leadership & Soft Skills
Proven experience leading technical teams
Strong coordination and stakeholder management skills
Ability to balance hands-on technical work with leadership responsibilities
Clear communication skills and a proactive, solution-oriented mindset Contract Details
Contract Type: Long-term contract
Location: Lisbon, Portugal
Working Model: Hybrid – 1 day onsite / 4 days remote
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