Domain Architect | AI Infrastructure & Security

Build, secure and architect the AI infrastructure of tomorrow.

Mayvun Arc is partnering with a specialist technology organisation delivering advanced AI infrastructure and cloud platforms across Australia.

We’re looking for a Domain Architect | AI Infrastructure & Security to become a key technical authority across the architecture, deployment, security and operational lifecycle of high-performance AI environments.

This is not a purely strategic architecture role.
You’ll be hands-on, working across NVIDIA GPU infrastructure, AI platforms, Kubernetes, confidential computing and zero-trust security — while also engaging directly with clients, supporting solution design and helping shape future deployments.

The role is approximately 60% technical delivery and 40% architecture, advisory and pre-sales.

What you’ll be doing
You’ll take ownership across the physical and logical lifecycle of advanced AI infrastructure, including:

• Leading the physical provisioning of NVIDIA NVL72, DGX SuperPOD, BasePOD, HGX, MGX and Cisco AI Factory environments.
• Using NVIDIA Base Command Manager (BCM) for diskless booting, firmware management and OS hardening.
• Establishing GPU and infrastructure monitoring through NVIDIA Mission Control.
• Executing automated Zero Touch Provisioning (ZTP) workflows to transform bare-metal hardware into production-ready nodes.
• Designing and enforcing Fair Share, fractional GPU quotas using MIG, and pre-emption logic for multi-tenant environments.
• Implementing advanced schedulers including Slurm, NVIDIA Run, Kueue and Volcano.
• Deploying management planes such as Rafay or Armada for multi-cluster management and observability.
• Implementing high-fidelity GPU telemetry using DCGM, monitoring GPU health, thermal throttling and XID error rates.
• Conducting validation using NCCL-tests, HPL and HPCG to verify cluster performance.
• Implementing NVIDIA BlueField/DOCA security controls, including micro-segmentation and workload isolation.
• Designing and enforcing zero-trust tenant isolation across shared AI infrastructure.
• Implementing confidential computing and attestation to protect data in use.
• Deploying and operating HashiCorp Vault for tenant-scoped secrets management and workload identity.
• Securing Kubernetes and Red Hat OpenShift through RBAC, admission policies and platform hardening.
• Implementing identity federation, access boundaries and workload identity across platform services.
• Embedding security controls through automation, policy-as-code and GitOps.
• Strengthening AI workload protection, software supply chain security and runtime threat detection.
• Working directly with clients on technical requirements, architecture, solution design, Statements of Work and delivery estimates.

Your technical background
You’ll bring strong experience across:

• NVIDIA GPU platforms, including Hopper, Grace-Hopper, Blackwell and Grace-Blackwell.
• NVL72 rack-scale architecture and NVSwitch fabrics.
• CUDA, cuDNN and NCCL.
• Linux environments including Ubuntu and RHEL, particularly for HPC/AI workloads.
• Kernel tuning, driver management and system hardening.
• Python and Ansible for infrastructure configuration and automation.
• High-speed networking including InfiniBand NDR/HDR and RoCEv2, and their relationship with PCIe/NVLink topologies.
• Kubernetes and/or Red Hat OpenShift administration and security.
• NVIDIA BlueField DPUs and DOCA.
• Production HashiCorp Vault, including secrets engines, workload authentication, tenant separation and credential rotation.
• Zero-trust multi-tenancy, micro-segmentation and practical validation of tenant isolation.
• Confidential computing, trusted execution environments and attestation.
• RBAC, admission policies and platform hardening using technologies such as OPA and Kyverno.
• Identity federation, access controls and workload identity.
• Security automation using Python, Ansible, Helm and/or GitOps.

What we’re looking for
We’re interested in the people who have actually built and secured these environments.
You may currently be working as a:

• Domain Architect
• Security Architect
• Principal Security Engineer
• Senior Infrastructure Security Engineer
• Senior Cloud Security Engineer
• Platform Security Lead
• AI Infrastructure Architect

Ready to make your mark in AI?

If you’re an architect or senior engineer who likes being close to the technology, enjoys solving genuinely complex infrastructure and security challenges, and wants to work on next-generation AI environments - we’d like to hear from you.

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Submit your resume or get in touch for a confidential conversation.