Security Architect Manager (Corporate & Cloud Security)

Nebius is looking for an experienced Security Architect Manager to lead our cybersecurity architecture function, with a strong focus on Kubernetes security, cloud infrastructure, cloud-native architectures, and secure software development.

The role is responsible for defining and implementing security architecture principles, designing secure cloud-native environments, and embedding security throughout infrastructure provisioning and software development lifecycles.

The successful candidate will combine deep technical expertise in Kubernetes and cloud security with proven team leadership, architectural design, and cross-functional collaboration skills. They will work closely with Cloud Engineering, DevOps, R&D, Platform Engineering, IT, and Security teams to ensure that security is built into the organization’s technology foundations.

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.
• Secure Kubernetes ingress, service-to-service communications, APIs, and service mesh architectures where applicable.
• Establish security controls for container orchestration platforms across development, testing, and production environments.
• Evaluate and manage Kubernetes security risks, misconfigurations, excessive privileges, exposed services, and vulnerable workloads.

Cloud Infrastructure Security

• Lead security architecture across AWS and/or Microsoft Azure, including cloud-native and hybrid environments.
• Define secure cloud landing zones, identity and access management, network segmentation, encryption, logging, and key management.
• Implement preventive and detective security controls using cloud-native security services and centralized policy enforcement.
• Drive cloud security posture management and remediation using CSPM, CNAPP, and related technologies.
• Ensure alignment with organizational security requirements and relevant industry standards.

Secure Development and DevSecOps

• Integrate security throughout the Software Development Life Cycle (SDLC), from design and coding to deployment and production operations.
• Partner with R&D, DevOps, and Platform Engineering teams to embed security into CI/CD pipelines.
• Define and implement automated security controls, including SAST, DAST, Software Composition Analysis (SCA), secrets detection, and container image scanning.
• Establish secure coding standards, threat modeling practices, API security requirements, and secure software supply chain controls.
• Promote developer-friendly security tooling and reusable security patterns that minimize friction and accelerate delivery.
• Drive remediation of vulnerabilities and architectural weaknesses in collaboration with engineering teams.

Security Engineering and Risk Management

• Develop technical security standards, architecture patterns, and security control baselines.
• Conduct threat modeling, attack-path analysis, architecture risk assessments, and security design reviews.
• Define security requirements for identity, access, data protection, network security, workload isolation, and observability.
• Collaborate with Security Operations to improve security telemetry, detection capabilities, and incident readiness.
• Evaluate emerging security technologies and recommend solutions based on risk reduction, operational effectiveness, and architectural fit.
• Track security findings and drive measurable improvements in the organization’s security posture.

Team Leadership and Collaboration

• Lead, mentor, and develop a team of cybersecurity architects and security engineers.
• Define team strategy, technical priorities, delivery plans, and measurable performance indicators.
• Build effective partnerships with Cloud Engineering, DevOps, R&D, Platform Engineering, and other technology stakeholders.
• Communicate complex architectural risks and technical trade-offs to senior management and engineering leadership.
• Foster a culture of engineering excellence, automation, accountability, and continuous improvement.

• 7+ years of experience in cybersecurity, security engineering, cloud security, or security architecture.
• 3+ years of experience managing technical teams or leading senior technical professionals.
• Strong practical knowledge of Kubernetes architecture and container security in production environments.
• Demonstrated experience securing cloud-native workloads and distributed systems.
• Strong expertise in AWS and/or Microsoft Azure security architecture.
• Hands-on understanding of Kubernetes RBAC, network policies, admission controllers, workload security, secrets management, and container runtime security.
• Experience with Docker or other container technologies, Kubernetes deployment workflows, and container registries.
• Strong understanding of cloud networking, IAM, encryption, key management, logging, and workload protection.
• Practical experience with Infrastructure as Code and automated security controls.
• Experience securing CI/CD pipelines and integrating security into software development processes.
• Knowledge of threat modeling, vulnerability management, security architecture reviews, and risk assessment methodologies.
• Proven ability to influence engineering teams and translate security requirements into scalable technical solutions.
• Excellent communication skills in English.

Key Success Metrics

• Improved security posture and reduced attack surface across Kubernetes and cloud environments.
• Reduction in critical misconfigurations, excessive privileges, and recurring architectural vulnerabilities.
• Increased adoption of secure-by-design architecture patterns across engineering teams.
• Improved security coverage and automation across CI/CD pipelines and infrastructure provisioning.
• Reduced time to remediate critical security findings.
• Consistent implementation of Kubernetes and cloud security baselines.
• Improved collaboration between cybersecurity, cloud infrastructure, platform, and development teams.
• Development of a high-performing cybersecurity architecture team.