About Nebius:

Nebius is leading a new era in cloud infrastructure for the general AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.

Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.

Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D; hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.;

Role Summary

We are looking for a Network Security Engineer to join our Network team. This role combines deep expertise in network engineering and cybersecurity. You will help implement end-to-end network security architectures for enterprise and data center backbone/fabric environments, work with network architects and the management team to guide these designs through review and approval with the Security team, and operate and maintain the implemented solutions day-to-day.
You are expected to be hands-on with leading firewall platforms (Palo Alto, Check Point, etc.), understand complex routing and switching designs, and be comfortable implementing and troubleshooting these networks.

Responsibilities

- Implement and maintain Zero Trust-aligned security architectures for both enterprise and data center networks.
- Configure Layer 3/4 & Multi-VRF Segmentation, Security Policies, Secure Remote access.




- Implement and test large hyper scale DC Security solutions : IPS/NDR solutions , AntiDDOS solutions.
- Integrate NGFW platforms with modern identity providers such as Microsoft Entra ID and Okta, maintain NGFW management, automation, and logging capabilities required by the Security team.
- Implement and maintain Security Capabilities, including Layer 7 application inspection, IPS, user identification, ZTNA, and SASE integrations.
- Integrate and operate monitoring tools such as Zabbix, Grafana, and Akvorado.
- Regularly perform security hardening, vulnerability management, and patching and upgrades on network and infrastructure devices, and verify the effectiveness of these procedures.

Required Qualifications

- Experience in networking and security protocols (TCP/IP, DNS, TLS, IPsec, Routing protocols )
- Experience and Knowledge of Backbone & Datacenter technologies (EVPN, L3VPN MPLS, MPBGP, L2VPN..)
- Hands-on experience with next-generation firewalls (Palo Alto Networks, Check Point, or similar).
- Experience with automation using Python, Go, or equivalent.
- Proficiency in Unix/Linux and experience with major network vendors (Cisco, Juniper, Aruba, etc.).
- Experience configuring and troubleshooting NGFW capabilities and integrations,



including IPS, User-ID, Microsoft Entra ID, and ZTNA.

Preferred Qualifications

- Good knowledge of IPv6.
- Experience with automation tools (Ansible, Terraform, NetBox, SaltStack, etc.).
- Experience with large-scale, highly available distributed systems.
- Knowledge of Zero Trust principles and micro-segmentation approaches.
- Relevant certifications (CCNP/CCIE, PCNSE, NSE 4/7) and professional working proficiency in English.
- Familiarity with commercial or open-source monitoring, logging, and security analytics solutions such as Splunk; EDR/XDR platforms such as CrowdStrike; and centralized NGFW management platforms such as Panorama, Strata Cloud Manager, and FortiManager.
- Bonus: Exposure to DevSecOps practices (SAST/DAST), CSPM/CWPP platforms such as Wiz, EDR, offensive security (OSCP/CPTS, red teaming), or security frameworks, standards, and regulations such as ISO/IEC 27001, NIST CSF, and GDPR.

Benefits & Perks:

- Competitive compensation
- Career growth and learning opportunities
- Flexibility and ownership
- Collaborative and innovative culture
- Opportunity to work on impactful AI projects
- International environment and talented teams

What's it like to work at Nebius:

Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI

Equal Opportunity Statement:

Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of empl

📌 Network Security Engineer (España)
🏢 Nebius
📍 España