We are seeking a skilled and passionate senior Senior Network Security Engineer to join our team in Porto. The Senior Network Security Engineer will be responsible for setting up, configuring, and supporting the CORE network infrastructure, including firewalls, HLB, DNS, proxies, and more. The role involves designing network solutions, troubleshooting, and optimizing the network environment while introducing automation services. The candidate will also participate in infrastructure and business projects, ensuring secure and efficient network operations. You will champion a security‑first culture, participate in initiatives that protect client platforms and data, reduce risk exposure, strengthen defenses, and continuously improve the client’s overall security posture.

Responsibilities

• Set up, configure, and support CORE network infrastructure (firewalls, HLB, DNS, GLB, IP, proxies, etc.)
• Create network designs based on infrastructure and a...