Security Architect Manager (Corporate & Cloud Security)

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.

The role Nebius is looking for an experienced Security Architect Manager to join the Cyber Security organization, reporting to the Head of Security Engineering uner the CISO. This role is responsible for leading the organization’s security architecture across corporate networks and cloud environments, ensuring secure design and implementation of enterprise infrastructure at scale. The ideal candidate combines deep expertise in network and cloud security with strong leadership capabilities.

You will define and drive security architecture across hybrid environments, working closely with IT, Infrastructure, Network, DevOps, and Security teams to ensure robust, scalable, and resilient security controls.

Responsibilities

will include: Lead and manage the security architecture domain, including security architects and/or senior engineers. Define and maintain security architecture standards, guidelines, and reference designs across corporate and cloud environments. Act as the primary authority on enterprise security architecture across networks, identity, endpoints, and cloud platforms.

Design and evolve secure enterprise network architectures, including segmentation, Zero Trust, and hybrid connectivity. Define and enforce security controls for corporate networks, data centers, and remote access solutions (ZTNA, proxies, NAC). , firewalls, secure gateways, access control solutions).

Lead security architecture across cloud platforms and hybrid environments. Define secure reference architectures for cloud networking, identity, and workload protection. Ensure proper implementation of cloud security controls, including IAM, segmentation, encryption, and monitoring.

Define security architecture for endpoints and identity, including EDR/XDR, device hardening, SSO, MFA, and privileged access. Ensure secure baseline configurations and access control mechanisms across corporate and cloud environments. Identify architectural risks and security gaps and drive mitigation strategies across infrastructure and cloud environments.

Establish and enforce architecture review processes and governance for new systems and changes. Collaborate with SOC, Vulnerability Management, IT, and Infrastructure teams to improve overall security posture. Contribute to the cyber security strategy and roadmap, including adoption of modern models such as Zero Trust.

We expect you to have: 7+ years of experience in cyber security, with a strong focus on cloud security. 2+ years of experience leading or managing security architects or senior security engineers. ).

Strong hands-on experience with cloud platforms (AWS, GCP, Azure) and cloud security best practices. Strong understanding of identity and access management (IAM), Active Directory / Entra ID, and privileged access controls. Experience securing hybrid environments (on-premise + cloud).

, Palo Alto, Check Point, Cisco, Zscaler, CrowdStrike, Microsoft Defender). Strong understanding of Zero Trust architecture principles.