Senior AI Infrastructure Engineer (Virtualisation)

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About this role

Senior AI Infrastructure Engineer (Virtualisation) Australia or Singapore Role Summary Firmus is seeking a highly skilled and driven Senior Engineer to play a key role in designing, building, and operating software-defined infrastructure, including high-performance AI storage platforms. You will help evolve our Software Defined Infrastructure by building reliable, scalable solutions that power some of the world's largest and most innovative AI workloads. You will be instrumental in ensuring the stability, performance, and continuous improvement of our mission-critical control plane and storage infrastructure. Key Responsibilities - Design and implement a highly scalable, multi-tenant control plane that supports Firmus' growing AI and infrastructure needs. - Contribute to the development of exabyte-scale, S3-compatible object storage, distributed file systems, and high-performance filesystems. - Work with bare-metal provisioning tools such as Base Command Manager, Warewulf, Ironic, MaaS, and similar platforms. - Apply a deep understanding of operating systems, computer networks, software-defined storage, and high-performance applications. - Work with technologies including RDMA, GPU Direct Storage, RoCE, InfiniBand, DPDK, Ceph, Weka, DAOS, and others. - Collaborate with operations teams to monitor, analyse, and optimise internal clusters and storage platforms. - Document architecture designs, operational procedures, and performance results. - Collaborate with L2 SRE engineers, site operations, and networking teams to ensure platform reliability, reproducibility, and performance. - Contribute to continuous improvement in cluster validation, CI/CD automation, and provisioning and testing frameworks. - Apply knowledge of Kubernetes and composable storage clusters. - Contribute to the development of custom Kubernetes operators and intelligent orchestration frameworks to optimise AI workload

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