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 cutting-edge 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 performance for large-scale GPU cluster commissioning.

Skills & Experience

- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
6–10 years of experience in infrastructure engineering and/or storage engineering.
- Hands-on experience with bare-metal provisioning.
Ability to operate software-defined storage platforms such as Ceph, Weka, Vast Data, DAOS, or Lustre.
- Solid understanding of cloud-native infrastructure, Kubernetes, and scalable system architectures.
- Strong debugging and problem-solving skills in distributed, high-performance environments.
- Strong automation mindset using tools such as Ansible, Helm, Terraform/OpenTofu, or equivalent.
- Understanding of firmware, BIOS, BMC/IPMI/Redfish, and low-level system tuning.
- Proficiency in one or more programming languages such as Go, Bash, Rust, or Python.
- Excellent documentation skills with strong attention to detail.
- Experience participating in an on-call rotation supporting production services.




Proactive self-starter with a drive for continuous technical improvement.
- Systems Architecture: Ability to design and integrate virtualisation, bare-metal, GPU, storage, and Kubernetes/Slurm platforms.
- Infrastructure Automation: Expertise in automated provisioning and lifecycle management of hardware and clusters.
- GPU and HPC Performance: Strong understanding of GPU systems, RDMA fabrics, and distributed AI workload performance.
- Technical Communication: Ability to communicate complex technical concepts effectively across engineering and operations teams.
- Continuous Improvement: Demonstrates curiosity, proactive learning, and innovation in AI and HPC infrastructure.

Success Metrics

- Reliable provisioning and benchmarking of scalable, high-performance storage systems.
- Performance validation and optimisation.
- Operational efficiency improvements.
- High-quality documentation and effective knowledge transfer.

Location & Reporting

- Singapore or Australia (Melbourne, VIC or Sydney, NSW or Launceston, TAS)
- Reporting to Senior Manager, Software Defined Infrastructure

Employment Basis

Full-time

Diversity

At Firmus, we are committed to building a diverse and inclusive workplace. We encourage applications from candidates of all backgrounds who are passionate about creating a more sustainable future through creative engineering solutions.

Join us in our mission to revolutionize the AI industry through sustainable practices and cutting-edge engineering.

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📌 Senior AI Infrastructure Engineer (Virtualisation) (City of Sydney)
🏢 Firmus Technologies
📍 City of Sydney