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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 infrastructure engineering a good career?
Yes, infrastructure engineering can be a good career choice for individuals who are interested in designing and managing the physical infrastructure required for various projects, including transportation systems, buildings, energy systems, and more
Infrastructure engineers play a critical role in ensuring that our communities have safe and reliable systems and facilities that meet the needs of their users
They are responsible for designing, building, and maintaining infrastructure projects, as well as managing the budget, timelines, and resources required for these projects
In addition, infrastructure engineering is a growing field, as there is a continued need for new infrastructure to support the growing population and changing technological landscape
This means that there are plenty of job opportunities in this field, and those with the right skills and qualifications can often command high salaries and advance their careers quickly
If you are interested in infrastructure and enjoy problem-solving, project management, and working with a team, infrastructure engineering can be a fulfilling and rewarding career choice.