Job Description

About Nebius: Nebius is leading a new era in cloud infrastructure for the global 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.

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