Global IT Infrastructure Engineer

Job Description Company is hiring a Global IT Infrastructure Engineer to support the design, build, operation, and continuous improvement of enterprise ‑ scale cloud, network, and server environments across hybrid infrastructures. While the primary environment is Microsoft Azure, candidates with hands ‑ on experience in any one major cloud platform — Azure, AWS, or GCP — are welcome. Among these, Azure experience is the most desirable. You will collaborate closely with customer teams and global engineering organizations to ensure stable, secure, and high ‑ performance operations. You will be employed by company and assigned onsite to a customer in Tokyo. Key Responsibilities ​ Cloud & Infrastructure Operations Design, build, operate, and optimize global IT infrastructure primarily using Microsoft Azure (AWS or GCP experience is also acceptable, and candidates can transition into Azure). Manage hybrid cloud and on‑premises datacenter integrations including identity, connectivity, and governance. Operate and support mid‑scale Azure environments, ensuring availability, performance, and compliance. Incident & Problem Management Lead incident response, troubleshooting, root‑cause analysis, and service restoration. Network Operations Manage global networks such as VPN, MPLS, and dedicated lines; address intercontinental routing constraints. Security & Risk Management Implement and maintain security controls, monitoring frameworks, and vulnerability assessments. Documentation & Governance Create and maintain run books, operational procedures, and configuration documentation. Cross‑Functional & Global Collaboration Coordinate with customer teams, overseas engineering groups, and external vendors. Cost Management Optimize infrastructure‑related costs and support budget awareness for cloud and on‑prem operations. Technical Innovation Research emerging technologies and propose improvements to enhance operational efficiency and system performance. Must‑Have Qualifications 4+ years of hands‑on experience in the design and implementation of major cloud platforms (Azure / AWS / GCP). Azure experience is the most desirable. Hands‑on experience with at least one major cloud platform (Azure, AWS, or GCP). Azure experience is the most desirable. Technical Skills Knowledge and skills related to major cloud services (with Azure being the most desirable), including architecture, governance, and security. Knowledge and operational experience in Windows/Linux administration and hybrid integrations. Understanding of global network operations (VPN/MPLS/dedicated lines). Strong troubleshooting, incident response, and performance tuning capabilities. Language Requirements Japanese: Native‑level proficiency. For non‑native speakers: JLPT N2 or above is mandatory. English: Business‑level for global communication. Required Competencies Planning & Execution: Able to translate objectives into actionable plans and deliver reliably. Analytical Thinking: Ability to analyze complex infrastructure issues and identify root causes. Prioritization: Capable of balancing incidents, changes, and tasks under time constraints. Presentation & Communication: Clear communication with technical and non‑technical audiences. Coaching & Collaboration: Shares knowledge and supports cross‑team and global cooperation. Certifications Required (one of the following — Azure is the most desirable): Microsoft Certified: Azure Solutions Architect Expert (most desirable) AWS Certified Solutions Architect – Professional Google Cloud Professional Cloud Architect Preferred CCNA / CCNP LPIC‑1 / LPIC‑2 / LPIC‑3 Windows Server certifications Security+ / CEH / CISSP ITIL Foundation PMP Work mode: 4 days onsite, 1 day remote per week