At Lognext, we have been supporting companies such as Verisure, BNP Paribas and AXA for 20 years, helping them solve complex technological challenges through high-performing expert talent that turns technology into business results.

We are looking for a talented
Operational Security Expert
to join our team, working with a leading multinational company in the
financial sector
.

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What are we looking for?

• An operational security professional with strong technical knowledge of AntiDDoS protection and the security of internet-facing infrastructure and applications.

• Solid, proven expertise in TCP/IP networking fundamentals and protocols (CCNA/CCVP level).

• Advanced knowledge of DNS security, including zone management, configuration and propagation.

• Strong experience in traffic monitoring, log analysis and abnormal traffic pattern detection.

• Technical knowledge of AntiDDoS solutions, particularly Akamai, including mitigation policy configuration and rate limiting.

• Strong analytical and troubleshooting skills,



autonomy and the ability to collaborate effectively with multidisciplinary technical teams.

• Good command of English (minimum B2).

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What will your main responsibilities be?

• Monitor and fine-tune Akamai DDoS protection policies, investigate abnormal traffic patterns and recommend appropriate mitigation measures.

• Contribute to the planning, testing and technical documentation of application migrations to Akamai zones.

• Review DNS change requests affecting DDoS protection, ensuring zone integrity and proper propagation in collaboration with DNS teams.

• Provide technical guidance on configuring security and rate-limiting policies to strengthen AntiDDoS defenses.

• Analyze AntiDDoS security logs and produce operational, activity and audit reports.

• Provide Level 2 (L2) troubleshooting support for application-layer incidents related to DDoS mitigation.

• Act as a technical advisor to project, architecture and audit teams regarding DDoS

📌 Operational Security Expert (Madrid)
🏢 Lognext
📍 Madrid