Desktop Support / IT Support-L2

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

Résumé du poste

Oikotechno Japan Co., Ltd is seeking a Senior Desktop Systems Administrator to manage enterprise endpoints and infrastructure across multiple sites. You will deploy Windows, macOS, and Linux, manage AD/GPO, JAMF, MDM, and Microsoft 365, and support collaboration tools in a fast-paced environment.

The role is on-site in an enterprise setting with core hours and after-hours support as needed. Strong automation and incident response skills are essential for success.

Qualifications

• 4+ years in desktop systems administration or service desk within a large enterprise.
• Experience packaging and deploying applications across Windows, macOS, and Linux environments.

Responsabilités

• Provide expert support for client compute devices and peripherals in a large enterprise.
• Manage and troubleshoot WAN/LAN, TCP/IP, DHCP, DNS, VPN, and Active Directory.
• Deploy, configure, and support Windows, macOS, and Linux OS deployments.
• Validate GPO/RSoP and JAMF configurations on endpoints.
• Manage user accounts and directory maintenance in Active Directory.
• Support Microsoft 365, Exchange Online, SharePoint, Teams, and Office apps.
• Configure and support mobile devices via MDM across the enterprise.
• Support videoconferencing and Cisco collaboration systems in multiple sites.
• Participate in IT security incident response, imaging, remediation, and forensics.
• Plan relocations and site migrations; assist EUC optimization.

Connaissances

Desktop Support

Endpoint Management

Windows Admin

macOS Deployment

Linux Systems

Active Directory

GPO

JAMF Pro

Microsoft 365

Exchange Online

MDM

ITSM Tools

IT Security

Incident Response

TCP/IP, DHCP, DNS, VPN

ITAM

Cisco Collaboration

Video Conferencing

Office 365

Imaging & Deployment

End-User Computing

SCCM/Intune

Formation

Bachelor’s degree in IT / Computer Science or Engineering

Certifications: CompTIA A+ / Modern Desktop Administrator / JAMF / Cisco CCNA Collaboration

Outils

SCCM

Intune

JAMF Pro

PowerShell

Description du poste

Senior Desktop Systems Administrator

We are seeking a highly motivated and technically skilled Desktop Systems Administrator to support our enterprise infrastructure. This on-site role involves managing and maintaining client compute devices, operating systems, mobile platforms, and supporting technologies across multiple locations. The ideal candidate will have strong technical expertise, excellent problem-solving skills, and the ability to work independently in a fast-paced environment.

Key Industry Keywords: Desktop Support, Endpoint Management, Windows Administration, macOS Deployment, Linux Systems, Active Directory, Group Policy (GPO), JAMF Pro, Microsoft 365, Exchange Online, Mobile Device Management (MDM), IT Service Desk, Enterprise Infrastructure, Systems Integration, IT Security, Incident Response, Network Protocols (TCP/IP, DHCP, DNS, VPN), IT Asset Management (ITAM), Cisco Collaboration, Video Conferencing Systems, Office 365, Windows Imaging, System Deployment, Client Compute Solutions, End-User Computing (EUC).

Job Highlights

• Location: On-site - no remote work available
• Work Schedule: Core business hours (8:00 AM – 6:00 PM); occasional after-hours support may be required
• Team Structure: Collaborate with cross-functional IT teams in a large-scale enterprise environment

Key Responsibilities

• 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.

Preferred 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.

Skills: itsm tools (servicenow, remedy, jira, etc.),macos / apple device support,active directory (user administration, permissions, group management),hardware troubleshooting (laptops, desktops, printers, docking stations),windows 10/11 administration & troubleshooting,os deployment & imaging,jamf administration / mac device management,linux support (ubuntu, centos, rhel),desktop support / end user computing (euc),microsoft 365 support (outlook, teams, sharepoint, office apps)