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Application Security & WAF Engineer (Lisbon - Hybrid)

Lisboa, PortugalFull-timePosted Nov 6, 2026

Job description

We're fast learners, hard workers, natural collaborators... and we Make Modern Happen! Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely. We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to address our customers' challenges and to build something stronger together.

If you share our vision, join us! Right now, we are looking for an Application Security & WAF Engineer to integrate our Talent team.

Your responsibilities

Administration, configuration, and optimization of Web Application Firewalls (WAFs), specifically FortiWeb, ensuring the protection of critical applications against threats and vulnerabilities. Management and troubleshooting of network security infrastructures, including FortiGate, Check Point, and Palo Alto. Daily collaboration with Systems, Cloud, Applications, and Security teams.

Troubleshooting and issue resolution in critical and high-availability environments. Taking technical ownership of critical security platforms. You must have: Experience in the administration of network and security infrastructures. Advanced knowledge of Fortinet FortiWeb (mandatory). Knowledge of Fortinet FortiGate. Good knowledge of TCP/IP, routing, switching, VLANs, NAT, VPN, DNS, and load balancing.

Experience in complex troubleshooting of critical and high-availability environments. Ability to work independently and take technical ownership of critical platforms. We value: Relevant experience in at least two of the following technologies: Check Point, Palo Alto, Cisco, and Azure. Experience in hybrid environments, with strong collaboration across Infrastructure, Cloud, and Security teams.

Exposure to multiple security solution vendors (multivendor environments). We offer: Regular professional development; Health insurance, with family package; Regular teambuilding programs; Friendly workplace. Workplace: Lisbon – Hybrid Claranet, Make modern happen!

Description copied from Claranet's careers page. Read the full posting before you apply.

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