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Systems Administrator

Lisboa

Job description

We are initiating the recruitment process for an outsourced professional to perform Windows Server Administration, Microsoft 365 Administration, and user support, with solid knowledge of VMware.

The selected candidate will be responsible for the administration and maintenance of the following environments and services:

  • Windows Server Administration (including network services)
  • Exchange Server Administration
  • Network Administration
  • Microsoft 365 and Azure Administration

The role involves ensuring the stability, performance, and security of both on-premises and cloud infrastructures, while providing technical support and implementing continuous improvements across systems and services.

Requirements


Windows Server Administration:

  • In-depth knowledge of Windows Server, including installation, configuration, and administration of services such as Active Directory, DHCP, DNS, Active Directory Domain Services (AD DS), Active Directory Federation Services (AD FS), and other server roles and features.
  • Experience implementing and maintaining security policies, access controls, and Group Policy Objects (GPOs).
  • Strong troubleshooting skills in areas such as networking, storage, and performance optimization within Windows Server environments.

Exchange Server Administration:

  • Proficiency in installing, configuring, and managing Exchange Servers, including mailbox creation, transport connectors, retention policies, and related administration tasks.
  • Experience with Exchange Server migrations, email troubleshooting, collaboration issues, and security policy implementation for messaging systems.

Network Administration:

  • Comprehensive knowledge of networking concepts and protocols, including TCP/IP, routing, switching, VLANs, VPNs, and firewalls.
  • Ability to design, implement, and maintain secure and scalable networks, with strong diagnostic and problem-solving skills for network-related issues.

Microsoft 365 and Azure Administration:

  • Expertise in managing and supporting the Microsoft 365 and Azure environment
  • Exchange Online
  • Teams
  • OneDrive
  • SharePoint, including:
    • Creating external users
    • Configuring sharing with external users
    • Conditional Access Policies and Azure AD Identity Protection
    • Multi-Factor Authentication (MFA)
    • Sensitivity Labels
    • Data Loss Prevention (DLP):
      • Adding and managing DLP policies
      • Defender for Office 365
      • Access Reviews
      • Troubleshooting issues related to Microsoft 365 services.

VMware Administration:

  • VMware vSphere
  • Proficiency in the installation, configuration, and administration of VMware vSphere, including ESXi, vCenter Server, and related components.
  • Knowledge of creating and managing virtual machines (VMs), templates, vMotion, Storage vMotion, and other vSphere functionalities.
  • VMware Networking
  • Understanding of virtual networking concepts within VMware environments, including vSwitches, virtual VLANs (VLANs), Distributed Switches (vDS), and network policy configuration.
  • VMware Storage
  • Experience in configuring and managing virtualized storage, including Datastores, vSAN (Virtual Storage Area Network), and integration with external storage solutions.
  • VMware Performance Tuning & Troubleshooting
  • Ability to monitor, analyse, and optimize performance within VMware environments by identifying resource bottlenecks, adjusting configurations, and resolving performance issues.
  • VMware Security
  • Experience in implementing security policies for VMware environments, including access control, auditing, and virtual firewall configuration.
  • VMware Upgrades & Migrations
  • Proven experience in planning and executing version upgrades of VMware environments, as well as migrating hosts and VMs across different vSphere versions.
  • Veeam Backup & Recovery
  • Knowledge of backup and recovery strategies for VMs within VMware environments, including integration with third-party backup solutions and retention policy implementation.

Soft Skills & Additional Qualifications:

  • Strong problem-solving and analytical skills.
  • Ability to work under pressure and manage multiple priorities.
  • Effective communication and teamwork capabilities.
  • Adaptability and eagerness to learn and apply new technologies.
  • Relevant certifications (e.g. Microsoft MCSA, MCSE, VMware VCP) are highly valued.
  • Demonstrated professional experience in similar system administration and cloud infrastructure roles.

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