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Senior Infrastructure Engineer — IDC / Bare-Metal Kubernetes
About the Role
We are building our own IDC infrastructure from the ground up. As a Senior Infrastructure Engineer, you will lead the architecture, buildout, and operations of our colocation data center — from rack layout to the on-prem Kubernetes platform. You build it, you own it. This is a true greenfield role with no legacy baggage and a high degree of architectural ownership.
Your core expertise will center on three pillars: building physical infrastructure from zero, running production-grade self-hosted Kubernetes, and hybrid-cloud interconnect. As the platform matures, you'll help drive the next phase of cross-cloud and scale-out buildout.
Responsibilities
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Design rack layout, network topology, and overall configuration for colocation
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Design and implement an isolated Out-of-Band (OOB) management network (BMC, IPMI, Redfish) with full security hardening
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Coordinate with colocation and hardware vendors — servers, switches, cross-connects, uplinks, remote hands, and cage/rack administration
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Build bare-metal automation for fleet-wide zero-touch OS provisioning (MAAS / Tinkerbell / Cluster API)
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Set up production-grade self-hosted Kubernetes clusters from scratch and maintain the core stack: Cilium (CNI), GitOps (ArgoCD), etc.
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Own cluster lifecycle: upgrades, scaling, node maintenance, incident response
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Write SOPs, runbooks, and post-mortems; participate in 24×7 on-call rotation
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Establish hybrid-cloud interconnect between IDC and public cloud (VPN / Direct Connect / peering)
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Pave the way for scale-out: GPU workloads (NVIDIA GPU Operator, passthrough, MIG) and VM workloads running alongside containers (KubeVirt or similar)
Requirements
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5+ years in data center / infrastructure / platform engineering
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Hands-on experience building physical infrastructure from scratch: rack layout, network topology, server commissioning, and coordinating cross-connects and remote hands with colo / vendors
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Practical experience designing and operating OOB management networks (BMC, IPMI, Redfish)
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Have stood up production-grade self-hosted Kubernetes from scratch, and can independently debug cluster-level issues (CNI, CSI, storage)
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Strong Linux systems administration and performance tuning (kernel, networking, storage I/O)
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Bare-metal automation experience with at least one of: MAAS, Tinkerbell, Cluster API
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Proficient with Terraform, Ansible, and at least one scripting language (Python / Go / Bash)
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Experience with Cisco network and related techniques (VLAN, LACP/LAG, BGP, ACL, etc)
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Experience with Palo Alto firewall configuration
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Experience with storage systems (NetApp, Dell EMC, Pure Storage)
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Fluent in English or Mandrain
Nice to Have
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High-density racks (30kW+) and 400G+ networking experience
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Familiarity with immutable OS (Talos Linux / Flatcar / Bottlerocket)
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Proficiency across both AWS and GCP; cross-cloud data migration experience
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Experience building storage or Bigdata / offline data clusters
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Virtualization experience (KubeVirt or similars)
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Exposure to NVIDIA GPU Operator and K8s GPU workloads
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CKA / CKS certification
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CCNP / CCIE certification
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Professional-level Japanese
Is Kubernetes high demand?
Yes, Kubernetes is currently in high demand in the technology industry
Kubernetes is an open-source container orchestration platform that is widely used for deploying, scaling, and managing containerized applications
It provides a standardized way to manage and automate the deployment of containerized applications across multiple hosts and provides benefits such as reliability, scalability, and flexibility
As more and more organizations move towards containerized architectures, Kubernetes has become a critical component of their infrastructure
Kubernetes is used by companies of all sizes, from startups to large enterprises, and across various industries, including finance, healthcare, and e-commerce
According to various job market and salary surveys, Kubernetes-related skills are in high demand, and job positions related to Kubernetes are growing at a rapid pace
In fact, Kubernetes is often listed as one of the top skills that are in high demand by technology companies
Overall, Kubernetes is a highly sought-after skill in the technology industry, and it's likely to remain in high demand in the foreseeable future as more and more organizations adopt containerization and cloud-native architectures.