Cloud Infrastructure Engineer

Kubernetes Cloud Infrastructure Operations Engineer – Contractor

Location: Tokyo, Japan (Onsite)

Contract Type: Independent Contractor

Experience: 7+ years

Role Overview

We are looking for a Kubernetes Cloud Infrastructure Operations Engineer to support the stability, availability, and performance of large-scale cloud-native infrastructure within a telecom environment. The role involves Kubernetes, Linux, bare-metal, virtualization, and infrastructure operations, with close coordination across telecom application and vendor teams.

Key Responsibilities

• Perform Kubernetes cluster, node, pod, and container infrastructure operations.
• Troubleshoot Linux, servers, storage, networking, and infrastructure issues.
• Support bare-metal and virtualized environments, including KVM/VM platforms.
• Execute deployments, patching, upgrades, maintenance, rollouts, validation, and rollback activities.
• Handle incident recovery and infrastructure restoration based on tickets and operational requests.
• Coordinate with hardware/platform vendors for escalations, bugs, fixes, and patches.
• Work closely with 5GC, EPC, IMS, and telecom application teams for joint troubleshooting.
• Maintain operational records, reports, change documentation, and timesheets.

Requirements

• 7+ years of experience in telecom or IT infrastructure operations.
• Strong hands-on experience with Kubernetes and containerized infrastructure.
• Strong Linux administration and troubleshooting skills.
• Experience with bare-metal servers, hardware troubleshooting, and virtualization/KVM.
• Good understanding of IP networking, routing, and basic BGP.
• Experience in vendor coordination and incident escalation.
• Telecom experience, particularly 4G EPC, 5GC, or cloud-native telecom infrastructure, is highly preferred.
• CKA/CKAD, Linux, or cloud-native certifications are an advantage.
• Fluent English and ability to work effectively during high-pressure incidents.

Work Model: 2 Onsite resources in Tokyo

Support: Daytime business-hour support; off-hours support only when explicitly requested for critical/urgent activities.