Security Engineering Manager (Platform Security)

CoreWeave; York and North Yorkshire; On-site; GBP 120,000 - 180,000; Full time

Job summary

CoreWeave is seeking a hands-on engineering leader to lead and scale its Platform Security engineering function, owning how security is designed into the Kubernetes-based platform and public cloud environments.

You will define strategy and execution for cloud security posture, workload isolation, platform guardrails, image integrity, and multi-cloud security across CoreWeave's Kubernetes infrastructure and cloud platforms including AWS, GCP, and Azure.

Qualifications

• Hands-on engineering leadership focused on security controls, not policy.
• Experience securing Kubernetes-based platforms and multi-cloud environments.
• Ability to define strategy and execution for CSPM, workload isolation, and image integrity.

Responsibilities

• Lead and scale CoreWeave's Platform Security engineering function.
• Own security design across Kubernetes platform and public clouds.
• Define strategy for cloud security posture, guardrails, and tenant isolation.
• Grow and mentor a team of platform security engineers and partner with other teams.

Skills

Cloud security

Kubernetes security

Platform security

Tools

AWS

GCP

Azure

Job description

• CoreWeave is the AI hyperscaler, operating infrastructure at a scale and level of complexity required to support the most demanding AI workloads in the world
• In this role, you will lead and scale CoreWeave's Platform Security engineering function, owning how security is designed into the Kubernetes-based platform and public cloud environments
• This is a hands-on engineering leadership role focused on building and operating security controls, not writing policy
• You will define strategy and execution for cloud security posture, workload isolation, platform guardrails, image integrity, and multi-cloud security across CoreWeave's own Kubernetes infrastructure and third-party cloud platforms including AWS, GCP, and Azure
• You will lead and grow a team of platform security engineers and partner closely with Infrastructure, Platform Engineering, SRE, and other security teams to ensure platform security capabilities scale alongside the business. T
• This role reports to the Senior Director of Security Foundations
• CoreWeave delivers GPU-accelerated infrastructure purpose-built to support the most demanding AI and machine learning workloads in the world
• Our platform is designed for extreme performance, scale, and reliability, supporting frontier AI development across a rapidly expanding global footprint
• As CoreWeave continues to scale, securing the platform layer that underpins customer workloads and internal services is a critical foundation for the business
• Platform Security at CoreWeave is an engineering discipline focused on building and operating systems that enforce security at the infrastructure layer across both our Kubernetes-based platform and third-party public cloud environments
• The team owns the technical design, implementation, and operation of cloud security posture management, workload isolation, platform-level guardrails, and image integrity controls
• This role is responsible for running, evolving, and operating CoreWeave's Platform Security engineering program and team in close partnership with Infrastructure, Platform Engineering, SRE, and other security stakeholders
• Own the strategy, roadmap, and execution of CoreWeave's Platform Security engineering program across Kubernetes and multi-cloud environments
• Lead and develop a team of platform security engineers through mentorship, technical direction, and performance management
• Design, build, and operate security controls for CoreWeave's Kubernetes-based platform, including workload isolation, admission control, runtime policy enforcement, and tenant boundary integrity
• Drive the security posture of CoreWeave's third-party public cloud environments (AWS, GCP, Azure), including account governance, IAM hygiene, configuration baselines, and automated guardrails
• Own and mature cloud security posture management (CSPM) capabilities, ensuring continuous visibility and automated remediation across all cloud environments
• Build and operate image integrity and supply chain security controls, including image signing, provenance verification, and base image governance
• Partner closely with Infrastructure and Platform Engineering to embed security into the