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System Administrator & IT Support

Ryan VAT Systems is an international group, offering services in the area of VAT compliance, tax representation and foreign VAT recovery to Key Account clients in Europe. Ryan VAT Systems is part of Ryan LLC Group ( Headquartered in the United States, with 2,500 employees in 4 continents, Ryan LLC is the largest firm in the world exclusively dedicated to corporate taxes.

Our continuous growth has led us to seek for an experienced professional to integrate our company in Braga (Portugal), as:


System Administrator & IT Support

You will be fully dedicated to our IT infrastructure and your role will be to:

  • Install, configure and maintain servers and networks
  • Oversee system performance and troubleshooting issues
  • Sustain network integrity, server deployment and security
  • Monitor and maintain network servers and intrusion detection systems
  • Manage service requests and troubleshoot issues
  • Provide hardware / software / support

We are looking for a candidate with the following profile:


  • Fluent English. Other languages, though not required, are a plus
  • Microsoft Windows Server Administration
  • Microsoft SQL Server Administration
  • Virtual machine management 
  • Networking, TCP/IP, DNS, Routing
  • Watchguard Firewall and VPN
  • Office 365 administration
  • Active Directory Administration and synchronization with Azure AD
  • Experience with multi-site organisations
  • Monitoring tools
  • Service Desk Tools (Atlassian preferred)
  • ISO 27001 knowledge or certifications
  • ITIL knowledge or certifications
  • Experience with Office 365 security mechanism like MFA, Office 365 compliance, Microsoft Threat Protection
  • Knowledge of ISD/IPS, DLP tools
  • Software inventory tools (eg: Spiceworks)
  • Linux Server and Azure administration though not required, are a plus


  • At least 3 years of experience in IT support
  • At least 3 years of experience in Windows Server administration
  • At least 2 years of Office 365 administration

Should you wish to be considered for this role, please send your CV and cover letter to with the Reference: System_Administrator

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VAT Systems France and Portugal are certified ISO 9001: 2015 for all their operations and VAT Systems France is qualified OPQCM.