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ネットワーク運用担当官/ Network Operations Officer

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An international technology company is looking for an On-Premises & Network Operations Officer. The selected candidate will support on-premises infrastructure and network operations, manage incident resolution, maintain system availability, and collaborate with internal and external stakeholders to ensure stable IT services.

Responsibilities:

  • Provide L1 and L2 support for incidents, service requests, and inquiries related to on-premises systems, applications, and network infrastructure
  • Perform ticket triage, troubleshooting, investigation, escalation, and resolution in accordance with ITSM processes and service level agreements
  • Monitor system and network alerts and respond according to operational procedures
  • Support incident management, root cause analysis, and problem management activities
  • Maintain the availability, performance, and security of on-premises infrastructure and network systems
  • Manage system configurations, user accounts, access controls, and operational administration tasks
  • Collaborate with customers, vendors, and internal teams during incidents and technical discussions
  • Prepare and maintain operational documentation, technical procedures, incident reports, and service records

Requirements:

  • Hands-on experience in operations and maintenance of on-premises systems, application servers, and network devices
  • Experience supporting and leading critical incident handling involving multiple stakeholders
  • Strong understanding of ITSM processes including incident, request, change, and problem management
  • Ability to diagnose and troubleshoot server, network, operating system, and application-level issues
  • Willingness to learn new technologies and adapt to dynamic environments

Preferred requirements:

  • Experience preparing client-facing documentation, incident reports, and presentations
  • Familiarity with Azure Monitor, Zabbix, and Prometheus
  • Basic understanding of Azure and cloud concepts
  • Business level English

About the Company:

This company operates in the technology and telecommunications solutions industry, supporting enterprises with advanced digital and IT services. It delivers innovative solutions that help organisations optimise operations and enhance business performance.

Keywords:

インフラ運用, ネットワーク運用, インシデント管理, システム運用, サーバー管理, ネットワーク管理, 問題管理, 障害対応, クラウド基礎, テクニカルサポート, 求人, 外資系

Job Ref: LQYF6T

Contract Type: Perm

Specialism: Information Technology

Focus: Network

Industry: IT

Salary: ¥6,000,000 - ¥8,000,000 per annum

Workplace Type: On-site

Experience Level: Associate

Language: English - Business level

Location: Tokyo

Job Reference: LQYF6T-46546883

Date posted: 9 June 2026

Consultant: Madhuri Srinivasa