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 to join the Cyber Security organization, reporting to the Security Architect Manager.

This role focuses on designing and implementing secure architectures across corporate networks and cloud environments. You will play a key role in defining secure solutions, reviewing system designs, and ensuring security is embedded across enterprise infrastructure.

The ideal candidate brings strong hands-on expertise in network and cloud security, along with the ability to work closely with IT, Infrastructure, DevOps, and Engineering teams to drive secure and scalable implementations.

You’re welcome to work in our offices in Tel Aviv, Israel.

Your responsibilities will include to:

Design and implementing secure architectures across corporate networks, cloud platforms, and hybrid environments.
Define and maintain security standards, guidelines, and reference architectures aligned with organizational requirements.
Review and approve architecture and design of new systems, infrastructure, and network changes.
Design and support secure enterprise network architectures, including segmentation, Zero Trust, and remote access solutions.
Define and implement controls for firewalls, ZTNA, proxies, and network access control (NAC).
Design secure cloud architectures including IAM, networking, and workload protection.
Ensure proper implementation of cloud security controls such as segmentation, encryption, and monitoring.
Define and support identity and access management controls, including SSO, MFA, and privileged access.
Contribute to endpoint security architecture, including EDR/XDR and device hardening standards.
Identify security risks and architectural gaps and recommend mitigation strategies.
Participate in architecture reviews, risk assessments, and security design discussions.
Collaborate with SOC, Vulnerability Management, IT, and Engineering teams to improve overall security posture.
Support implementation of security architecture initiatives and improvements across the organization.

Cybersecurity Architecture

Define and maintain the organization’s cybersecurity architecture, reference architectures, security standards, and design principles.
Lead security architecture reviews for new systems, applications, infrastructure, and technology initiatives.
Translate threat models, business requirements, and risk assessments into practical security controls.
Establish security-by-design principles across cloud, infrastructure, application, and platform architectures.
Identify architectural security gaps and drive remediation roadmaps.

Kubernetes and Cloud-Native Security

Design and implement security architectures for Kubernetes-based environments and cloud-native platforms.
Secure Kubernetes clusters, control planes, worker nodes, namespaces, workloads, and cluster-to-cluster communications.
Define and enforce Kubernetes security best practices, including RBAC, workload identity, network policies, admission controls, Pod Security Standards, and secrets management.
Secure container images and registries, including image scanning, provenance, signing, and supply chain integrity.
Implement runtime security, workload isolation, threat detection, and monitoring for containerized environments.