Senior Infrastructure Engineer — IDC / Bare-Metal Kubernetes
On-siteTokyo, Tokyo, Japan or Hong Kong, Hong Kong
Job Summary
Design rack layout, network topology, and overall configuration for colocation while implementing an isolated Out-of-Band (OOB) management network with full security hardening. Coordinate with colocation and hardware vendors for servers, switches, and remote hands, then build bare-metal automation for fleet-wide zero-touch OS provisioning. Set up production-grade self-hosted Kubernetes clusters from scratch, maintain the core stack including Cilium and GitOps, and own cluster lifecycle management for upgrades and incident response. Establish hybrid-cloud interconnect between IDC and public cloud, paving the way for scale-out GPU and VM workloads. Participate in 24×7 on-call rotation and write SOPs, runbooks, and post-mortems.
Required Qualifications
- 5+ years in data center / infrastructure / platform engineering
- Hands-on experience building physical infrastructure from scratch: rack layout, network topology, server commissioning, and coordinating cross-connects and remote hands with colo / vendors
- Practical experience designing and operating OOB management networks (BMC, IPMI, Redfish)
- Have stood up production-grade self-hosted Kubernetes from scratch, and can independently debug cluster-level issues (CNI, CSI, storage)
- Strong Linux systems administration and performance tuning (kernel, networking, storage I/O)
- Bare-metal automation experience with at least one of: MAAS, Tinkerbell, Cluster API
- Proficient with Terraform, Ansible, and at least one scripting language (Python / Go / Bash)
- Experience with Cisco network and related techniques (VLAN, LACP/LAG, BGP, ACL, etc)
- Experience with Palo Alto firewall configuration
- Experience with storage systems (NetApp, Dell EMC, Pure Storage)
- Fluent in English or Mandrain
Desired Qualifications
- High-density racks (30kW+) and 400G+ networking experience
- Familiarity with immutable OS (Talos Linux / Flatcar / Bottlerocket)
- Proficiency across both AWS and GCP; cross-cloud data migration experience
- Experience building storage or Bigdata / offline data clusters
- Virtualization experience (KubeVirt or similars)
- Exposure to NVIDIA GPU Operator and K8s GPU workloads
- CKA / CKS certification
- CCNP / CCIE certification
- Professional-level Japanese
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