Senior Desktop & Enterprise IT Systems Administrator

Oikotechno Japan Co., Ltd; Limonest; Sur place; EUR 55 000 - 75 000; Plein temps

Résumé du poste

Oikotechno Japan Co., Ltd is seeking a Senior Desktop Systems Administrator to support enterprise infrastructure on-site in a large-scale environment. You will manage client compute devices, operating systems, and mobility across sites.

The role requires strong technical skills, independence, and the ability to troubleshoot WAN/LAN, AD, GPO, JAMF/MDM, and productivity suites. You will work with cross-functional IT teams during core hours.

Qualifications

• 4+ years of experience in desktop systems administration and/or service desk administration in a large-scale enterprise environment.
• Ability to work with minimal supervision — self-motivated, proactive, and solution-oriented.
• Experience with client application packaging and deployment across Windows, macOS, and Linux platforms (e.g., using SCCM, Intune, or JAMF).
• Familiarity with IT asset management (ITAM) tools and standard inventory practices.
• Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field.
• Relevant certifications (e.g., CompTIA A+, Microsoft Certified: Modern Desktop Administrator Associate, Apple Certified Support Professional, JAMF Certified Administrator, or Cisco CCNA Collaboration).
• Hands-on experience with Microsoft Intune, Microsoft Endpoint Configuration Manager (MECM), or JAMF Pro for endpoint lifecycle management.
• Knowledge of scripting languages (e.g., PowerShell, Bash, Python) for automation of routine desktop administration tasks.

Responsabilités

• Provide expert-level support for client compute devices (laptops, desktops, peripherals) and accessories in a large-scale enterprise environment.
• Manage and troubleshoot infrastructure technologies including WAN/LAN, TCP/IP, DHCP, DNS, VPN, and Active Directory.
• Deploy, configure, and support operating systems including Windows, macOS, and Linux (Ubuntu, CentOS, RHEL).
• Validate and troubleshoot Group Policy Object (GPO) Resultant Set of Policy (RSoP) and JAMF configuration profiles on endpoints.
• Manage user account lifecycle: creation, modification, deactivation, permissions, and directory maintenance (e.g., Active Directory).
• Support and troubleshoot Microsoft productivity suite: Microsoft Teams, SharePoint, Exchange/Outlook, and Office applications.
• Configure, deploy, and support mobile devices (Apple iOS and Android) across enterprise environments using Mobile Device Management (MDM) solutions.
• Support single- and multi-site videoconferencing solutions and advanced conference room control systems (Cisco experience is a plus).
• Manage enterprise network printing infrastructure, including high-volume scanning-to-email and finishing unit operations.
• Participate in IT security incident response, including system imaging, malware remediation, and forensic support.
• Plan and execute user and site relocations, including office moves and full-scale site migrations.
• Collaborate with IT security teams to enforce endpoint compliance, patch management, and device hardening best practices.
• Participate in continuous improvement initiatives for End-User Computing (EUC), automation, and service delivery optimization.

Connaissances

Desktop Support

Endpoint Management

Windows Administration

macOS Deployment

Linux Systems

Active Directory

Group Policy

JAMF Pro

Microsoft 365

Exchange Online

Mobile Device Management

IT Service Desk

Enterprise Infrastructure

Systems Integration

IT Security

Incident Response

Network Protocols

IT Asset Management

Cisco Collaboration

Video Conferencing

Office 365

Windows Imaging

System Deployment

EUC

Formation

Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field

CompTIA A+

Microsoft Certified: Modern Desktop Administrator Associate

Apple Certified Support Professional

JAMF Certified Administrator

Cisco CCNA Collaboration

Outils

SCCM

Intune

MECM

JAMF Pro

ServiceNow

Remedy

Jira

Description du poste

Oikotechno Japan Co., Ltd is seeking a Senior Desktop Systems Administrator to support enterprise infrastructure on-site in a large-scale environment. You will manage client compute devices, operating systems, and mobility across sites.

The role requires strong technical skills, independence, and the ability to troubleshoot WAN/LAN, AD, GPO, JAMF/MDM, and productivity suites. You will work with cross-functional IT teams during core hours.