Claranet

Senior Sharepoint Administrator

Claranet

Lisboa, Lisboa, PortugalFull timePosted Jul 31, 2026

Job description

We're fast learners, hard workers, natural collaborators... and we Make Modern Happen! Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely. We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to address our customers' challenges and to build something stronger together.

If you share our vision, join us! We are looking for a Senior SharePoint Administrator to join our internal team in Lisbon, with strong experience in SharePoint On-Premises and SharePoint Online environments, responsible for the administration, optimization, migration, and advanced support of the platform, ensuring its availability, security, and performance.

The ideal candidate will have proven experience managing enterprise SharePoint infrastructures, leading cloud migration projects, and resolving complex issues within critical production environments.

Your responsibilities

Administer and support SharePoint On-Premises and SharePoint Online platforms. Manage the configuration, maintenance, and optimization of SharePoint farms in enterprise environments. Lead and execute SharePoint On-Premises to Microsoft 365 / SharePoint Online migration projects. Design and implement hybrid SharePoint architectures when required.

Monitor the health, availability, performance, and security of SharePoint environments. Perform advanced troubleshooting and root cause analysis for complex incidents. Implement and manage platform security, permissions, and governance policies. Collaborate with Infrastructure, Cloud, Security, and Application teams. Document technical architectures, operational procedures, and platform configurations.

Ensure alignment with Microsoft best practices for SharePoint and Microsoft 365. Provide Level 3 (L3) support for critical incidents. Participate in modernization and digital transformation initiatives related to collaboration and document management solutions. You must have: Minimum of 5 years of experience in SharePoint administration.

Proven hands-on experience with: ü SharePoint Server On-Premises (2013/2016/2019) ü SharePoint Online ü Microsoft 365 Practical experience delivering SharePoint On-Premises to Cloud migration projects. Strong experience in advanced troubleshooting and complex problem resolution. Experience managing mission-critical production environments.

English – B2/C1 - mandatory Technical Skills: SharePoint Farm Administration. Service Applications configuration and management. Content Database administration. SharePoint Search Service. User Profile Service. Managed Metadata Service. Authentication configuration (NTLM, Kerberos, and Claims-Based Authentication). SharePoint security and permissions management.

PowerShell scripting and automation. IIS administration and Windows Server management. Active Directory. SQL Server administration related to SharePoint environments. Backup, restore, and disaster recovery procedures.

Nice to Have

Microsoft certifications related to: ü SharePoint ü Microsoft 365 ü Azure Experience with: ü SharePoint Subscription Edition ü Advanced PowerShell scripting ü Power Platform (Power Apps, Power Automate) ü Microsoft Teams integrations ü OneDrive for Business ü Azure AD / Microsoft Entra ID ü Microsoft Purview Experience with migration tools such as: ü ShareGate ü Metalogix ü AvePoint ü Quest Experience working in hybrid Microsoft environments.

Knowledge of scripting, automation, and process optimization. We offer: Regular professional development; Health insurance, with family package; Office facilities for meals and snacks; Regular teambuilding programs; Friendly workplace. Workplace: Lisbon

  • Hybrid Claranet, Make modern happen!