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About the Role
Firmus Technologies is seeking a Senior Platform Reliability Engineer, Fabric and Interconnect, to own the reliability of the fabrics supporting their large-scale AI infrastructure. This hands-on role involves deep technical expertise and a strong focus on automation to ensure the self-healing capability of the fabric infrastructure, including GPU-to-GPU interconnects, high-performance network fabrics, and DPU-based host networking.
Responsibilities
- Triage, diagnose, and resolve incidents across Kubernetes clusters, workloads, storage, virtualization, network connectivity, and Linux hosts.
- Operate the multi-tenant control and management plane, including tenancy, quota, and access controls.
- Operate the virtualization platform and shared services to declared service levels.
- Operate exabyte-scale distributed and high-performance filesystems and S3-compatible object storage.
- Operate the GPU compute fleet in production, managing node health, GPU/node fault detection, firmware/driver currency, and supporting cluster provisioning.
- Reduce toil by converting repeat fixes into runbooks and automated remediation.
- Diagnose performance problems across the data path between compute and storage.
- Deliver change as code through the agreed change process, including peer review and testing.
- Utilize the observability stack to track service level indicators, query metrics, logs, and traces, and correlate signals.
- Execute patching cycles and urgent vulnerability remediation.
- Manage vendor support cases, raising and tracking cases, and supplying diagnostic evidence.
- Participate in technical recovery during major incidents and blameless post-incident reviews.
- Share the after-hours escalation roster for its domain.
Requirements
- Solid experience operating production infrastructure in a 24/7 environment using site reliability engineering practices.
- Strong working knowledge of Linux systems administration and troubleshooting.
- Working experience with scale-out, parallel, or enterprise storage.
- Familiarity with a virtualization platform.
- Working experience using observability tooling to diagnose faults.
- Working experience with infrastructure-as-code and GitOps practices.
- Familiarity with server hardware operation and support.
- Familiarity with cyber security principles.
- Clear communication skills, with the ability to write incident updates and escalations.
- Working style suited to a team that shares accountability across regions.
Skills
- Site Reliability Engineering (SRE) practices
- Linux systems administration
- Storage troubleshooting
- Host networking
- Observability tooling (Grafana, Prometheus, Loki, Tempo, Elasticsearch)
- PromQL
- LogQL
- Infrastructure-as-code (OpenTofu, Terraform)
- GitOps (Argo CD)
- Scripting/automation (Python, Go)
- Server hardware support
- Cyber security principles
Location
- Australia
- Singapore
Work Type
- Permanent full-time
- 24/7 operations
- After-hours escalation roster
Experience Level
- Senior
Education Level
- Bachelor's degree in computer science, engineering or a related discipline, or an equivalent combination of relevant experience and training.
- Certified Kubernetes Administrator (CKA)
- Linux certification (RHCSA or LFCS)
- Vendor certification
About the Company
- Firmus Technologies is a global leader in AI infrastructure, pioneering efficient AI infrastructure development and operation across Asia Pacific.
- Founded in Australia in 2019, their mission is to create the most efficient AI infrastructure by combining cutting-edge technology with a steadfast commitment to sustainability.
- They design, build, and operate a new class of digital infrastructure called the AI Factory, utilizing model-to-grid technology.
- Their Firmus AI Cloud is a large-scale GPU cloud platform purpose-built for energy-efficient AI compute.
- AI FactoryOS is Firmus' proprietary operating system for the AI Factory, governing GPU telemetry, cooling, power, and grid interaction.
Equal Opportunity
- 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 innovative engineering solutions.