Senior/Staff Security Engineer

Senior/Staff Security Engineer

About Zettabyte

AtZettabyte, we’re building the infrastructure layer for the AI-first world. Our mission is to make AI computeubiquitous, seamless, and limitless by operating a cloud where AI workloads run securely at massive scale—anywhere, anytime.

We run amulti-tenant GPU cloud for AI developers and enterprises. Security isn’t a support function here—it’s acore platform capability.

Why this role exists

Zettabyte is scaling a shared, high-performance AI compute platform in a space wheretraditional cloud security models break down. Multi-tenant GPUs, high-speed networking, and untrusted customer workloads introduce security challenges that don’t have off-the-shelf answers.

We’re hiring aStaff Security Engineer todefine and own the security architecture of our platform. You’ll operate with wide latitude, shaping how isolation, detection, and trust are built into the system from day one.

This role is ideal for someone who thrives inearly-to-mid stage environments, enjoys working through ambiguity, and wants to build security systems that scale with the business—not slow it down.

What you’ll do

• Own theend-to-end security architecture for multi-tenant Kubernetes GPU clusters

• Designtenant isolation, egress control, and network segmentation across compute, storage, and networking layers

• Define and implementruntime security and intrusion detection for untrusted AI workloads

• Buildsecurity primitives (identity, secrets, encryption, policy enforcement) that platform teams build on

• Secure thesoftware supply chain, from CI/CD pipelines to container admission

• Leadthreat modeling and security design reviews for new platform features

• Drivecompliance readiness (SOC 2, ISO 27001) without slowing engineering velocity

• Act as aforce multiplier: unblock teams, set standards, and raise the security bar across the org

• Lead security incident response and turn incidents into systemic improvements

What we’re looking for

• 7+ years of experience insecurity engineering for cloud-native, infrastructure, or distributed systems

• Deep, hands-on expertise inKubernetes security (RBAC, PSA, network policies, admission controllers)

• Strong understanding of cloud security primitives inAWS, GCP, or Azure

• Experience building or operatingruntime security and policy enforcement (Falco, Cilium, OPA, Calico, eBPF-based tools)

• Solid grounding innetwork security and zero-trust architectures

• Practical experience withsecrets management and key systems (Vault, cloud KMS)

• Strong automation skills inGo, Python, or Bash

• Proven ability to operate autonomously, make architectural decisions, and deliver in ambiguous environments

• Experience partnering deeply with platform, infra, and SRE teams

Bonus experience (nice to have, not required)

• GPU isolation and virtualization security (MIG, SR-IOV)

• InfiniBand, RDMA, or high-performance networking

• HPC or large-scale multi-tenant compute platforms

• Security for AI/ML systems or data-intensive workloads

• Incident response leadership or red team experience

• Security certifications (CKS, OSCP, CISSP)

• Open-source contributions in security or cloud infrastructure

What makes this role different

• You’lldefine the security model, not just implement tickets

• You’ll work onreal isolation problems in GPU and high-speed networking environments

• You’ll influence architecture across the platform, not sit in a silo

• You’ll help build a security culture at a company wherespeed and safety both matter

Compensation

• Competitive salary — commensurate with your experience and aligned with industry standards

• Meaningful equity — be part of the upside as we build a category-defining company. Your grant will align with your role and the experience you bring.