Senior Platform Security Engineer – Multi-Tenant IaaS & HPC

nscaleoperationsukltd; United States; Remote; USD 210,000 - 270,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

Paid time off

Parental leave

Equity

Bonus potential

Job summary

nscaleoperationsukltd is seeking a hands-on security leader to establish an assurance program for an infrastructure-as-a-service platform. You will investigate how GPU compute, storage, virtual networking, Kubernetes, and HPC scheduling operate, testing tenant boundaries and delivering evidence-based priorities to engineers.

You will review services, assess isolation risks, and collaborate with platform teams to implement fixes and secure defaults.

Qualifications

• Hands-on experience assessing or securing cloud infrastructure where the platform is the product.
• Ability to trace real data and control paths, review configurations, test isolation, and produce evidence.
• Experience setting security standards, threat modeling services, prioritizing findings by practical exploitability, guiding remediation.

Responsibilities

• Establish and document an assurance program across GPU compute, storage, virtual networking, Kubernetes, and HPC scheduling.
• Review platform services, document architecture, threat models, security requirements, findings, and remediation plans.
• Assess bare-metal and virtualized GPU infra, provisioning, firmware and management interfaces, and tenant teardown for isolation risks.
• Examine storage services for tenant separation, encryption, key handling, access control, snapshots, backups, secure deletion, and volume reuse.
• Test virtual network segmentation, east-west controls, and separation of tenant traffic from management networks.

Skills

Cloud security

Threat modeling

Security standards

Cross-team influence

Assurance evidence

Job description

nscaleoperationsukltd is seeking a hands-on security leader to establish an assurance program for an infrastructure-as-a-service platform. You will investigate how GPU compute, storage, virtual networking, Kubernetes, and HPC scheduling operate, testing tenant boundaries and delivering evidence-based priorities to engineers.

You will review services, assess isolation risks, and collaborate with platform teams to implement fixes and secure defaults.