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Alongside·Porto, Porto District, Portugal

Senior Microsoft 365 Administrator

Posted 9 July 2026

Alongside partners with organizations to drive digital transformation and build high-performing tech teams.

We are looking for a Senior Microsoft 365 Administrator to join a project at a company specializing in financial market operations. In this role, you will be responsible for the administration, support, optimization, and evolution of Microsoft cloud services, ensuring a secure, scalable, and highly available collaboration environment.

As a senior technical reference, you will play a key role in complex incident resolution, cloud modernization initiatives, security improvements, and process automation.

Responsabilities:

  • Administer, maintain, and optimize the Microsoft 365 environment.
  • Manage and support Microsoft Entra ID, including identity lifecycle, Conditional Access, PIM, SSO, and MFA.
  • Administer Exchange Online, including troubleshooting, mail flow, connectors, security, eDiscovery, and compliance policies.
  • Configure, support, and govern Microsoft Teams, including voice, telephony integration, and security policies.
  • Manage SharePoint Online, including site administration, permissions, governance, and migrations.
  • Develop and maintain automation using PowerShell, Power Automate, Logic Apps, and Microsoft Graph API.
  • Participate in Microsoft cloud migration, modernization, and integration projects.
  • Implement security best practices and ensure compliance with governance, GDPR, and audit requirements.
  • Troubleshoot and resolve complex technical issues while acting as a senior escalation point.
  • Contribute to the continuous improvement, performance, and reliability of the Microsoft cloud environment.

Requirements

  • 10+ years of experience administering Microsoft 365 environments.
  • Strong expertise in Microsoft Entra ID, including identity management, Conditional Access, PIM, SSO, and MFA.
  • Advanced hands-on experience with Exchange Online, including troubleshooting, connectors, mail flow, security, eDiscovery, and compliance.
  • Solid experience configuring and managing Microsoft Teams, including governance, voice, telephony integration, and security.
  • Strong knowledge of SharePoint Online administration, permissions, governance, and migrations.
  • Hands-on experience with PowerShell scripting and automation using Power Automate, Logic Apps, and Microsoft Graph API.
  • Good understanding of cloud security best practices, including Zero Trust, Microsoft Defender for Microsoft 365, and Microsoft Defender for Cloud.
  • Experience delivering migration projects from on-premises environments to Microsoft 365 and Azure.
  • Ability to produce technical documentation and follow operational best practices.
  • Fluent English (minimum B2 level).

Benefits

  • Strong analytical and problem-solving skills.
  • Proactive mindset with a continuous improvement approach.
  • Excellent communication and collaboration skills.
  • Strong focus on security, governance, and operational excellence.
  • Hybrid work model: Porto office
  • Salary range: 45k – 60k per year

Senior Microsoft 365 Administrator