Welvaart

System Administrator – Windows, Linux, Virtualization

Welvaart

full-time

Posted on:

Location Type: Office

Location: Lisbon • Portugal

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Tech Stack

CloudLinuxVMware

About the role

  • Hardware sizing for the virtualization infrastructure
  • Installation and configuration of VMware/Omnissa environments
  • Creation and configuration of base images for virtual PCs
  • Definition and implementation of virtual PC pools
  • Administration and optimization of hardware resources associated with virtualization
  • Capacity management and monitoring of virtual PC pools
  • Performance measurement and analysis to ensure stability and efficiency
  • Planning and implementation of solution upgrades and improvements
  • Updating and maintenance of virtual PC base images
  • Direct support to users and internal teams
  • Diagnosis and resolution of incidents related to the platform
  • Installation, configuration and management of Active Directory and Exchange environments in hybrid infrastructures (Cloud + On-premises)
  • Administration and support of Office 365 services, including Teams and OneDrive
  • Management, monitoring and continuous improvement of corporate Microsoft environments
  • Creation of Windows base images (OS + drivers + corporate software) prepared for deployment to new devices via SCCM/Intune
  • Testing and validation of Windows upgrade processes using automated pipelines in SCCM/Intune
  • Planning and implementation of security update policies on corporate devices
  • Creation, management and deployment of software installation and update packages
  • Ensuring up-to-date inventory and compliance of software installed on the organization's devices

Requirements

  • Proven experience with VMware/Omnissa environments
  • Strong knowledge of Microsoft 365, Active Directory and Exchange management
  • Hands-on experience with SCCM and/or Intune
  • Ability to diagnose and resolve complex problems
  • Autonomy, attention to detail and good communication with users and technical teams
  • Knowledge and experience with Omnissa (formerly Horizon), including virtual desktop management and troubleshooting
  • Strong technical aptitude; profiles with advanced Linux skills are highly valued
  • Ability to communicate effectively with users and show empathy in daily support
  • Technical English sufficient for contacts with Microsoft and VMware support
  • Availability to participate in monthly on-call rotations
  • 4–5 years of professional experience in systems administration or similar roles
  • Previous experience in large-scale environments, especially related to virtual PCs and proportionality models
Benefits
  • Fair and equitable compensation structure
  • Training and certification
  • Career path management
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
VMwareOmnissaActive DirectoryExchangeOffice 365SCCMIntuneWindows base imagesvirtual desktop managementLinux
Soft Skills
problem diagnosiscommunicationattention to detailautonomyempathy