# Senior Microsoft 365 Administrator

> Alongside · Porto, Portugal (Hybrid) · — · Posted 2026-07-09

**Workplace:** hybrid

**Department:** Euronext

## Description

**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

## Apply

[Apply at Alongside](https://apply.workable.com/alongside-team/j/05D6E18467/apply)

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